/*
Tcp server that accepts new connections, waits for predefined request and sends response.
There is a sample of corresponding client.
*/

QUIET PARAMETERS: no parameters
Instructs to not display some annoying messages.

TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT command (its analogs) will work differently: it will always wait for the whole timeout (not terminating on first received packet). So several packets may be registered as received. This command also defines the timeout for TCP server while waiting for connections.

). See "samples/waiting_packets.fws".

command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in DEFAULTS PARAMETERS: {accept | drop | any | REVERS PARAMETERS: not command
Request specification. May only be given in parameters for DEFAULT command. Instructs to reverse the request for every packet.

). See "samples/waiting_packets.fws".

and its analogs). Initially default requests are ACCEPT ANY ANY... i.e. a single request for the first interface specified via option -d.

(command DEFAULT). For TCP DEVICE PARAMETERS: <type of device> {<name of interface>}
Reopens interfaces. The type of device: eth, ip, tcp. The name of device is the same as for -d option, depends on the type of device. New line terminates the list of names.

the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT PARAMETERS: {accept | drop | any }
Analog of WAIT command. Adds the above packet to the set of packets which will be waited by command WAIT or its analogs. This command does not start actual waiting (doesn't suspend script execution). Nevertheless, just after adding the packet may be registered as received. If some packet is registered as received before the call to WAIT (WAITALL PARAMETERS: no parameters
The analog of WAIT command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT command.

command (or using of UNFIX command).

) then the command will ignore it and wait for a next packet (see also SENDWAITOTHER PARAMETERS: no parameters
Works similar to "SEND WAITALL" sentence. Purpose: make atomic operation. Without this command there would be a chance that a waited packet did not cause command WAITALL stop waiting if it was accepted after SEND but before WAITALL started waiting. However it would be registered as received in any case. This command should be always used when you need to send a request and RELIABLY receive a response on it never missing.

command.

command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

command (its analogs) will work differently: it will always wait for the whole timeout (not terminating on first received packet). So several packets may be registered as received. This command also defines the timeout for TCP server while waiting for connections.

). See "samples/waiting_packets.fws".

5000
OPEN PARAMETERS: <interface's type> <interface's name>
Opens interface of given type. Types: eth, ip, tcp, udp. For tcp this command will wait till connection with server is established or a client connection is accepted. For other types the command won't wait. See more in -d,-p,-T options.

tcp 's:localhost:67#s'
TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

and its analogs). Initially default requests are ACCEPT ANY ANY... i.e. a single request for the first interface specified via option -d.

command (or using of UNFIX command).

command.

command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

1000

CYC PARAMETERS: <number of iterations>
Command instructs that next WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in DEFAULTS PARAMETERS: {accept | drop | any | REVERS PARAMETERS: not command
Request specification. May only be given in parameters for DEFAULT command. Instructs to reverse the request for every packet.

). See "samples/waiting_packets.fws".

and its analogs). Initially default requests are ACCEPT ANY ANY... i.e. a single request for the first interface specified via option -d.

command (or using of UNFIX command).

command.

command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

command (its analogs) or next block of script will be processed by several times = <number of iterations>. The "inf" value is available which means infinite iterant processing.

inf {
NAME PARAMETERS: <name of packet>
Defines the name of currently described packet which will be displayed in report instead of not obvious "Packet on line ..."

4
data '2*2'
// !!! will compare with the beginning of next received data (if at least one byte arrives)
TOWAIT PARAMETERS: {accept | drop | any }
Analog of WAIT command. Adds the above packet to the set of packets which will be waited by command WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

or its analogs. This command does not start actual waiting (doesn't suspend script execution). Nevertheless, just after adding the packet may be registered as received. If some packet is registered as received before the call to WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in DEFAULTS PARAMETERS: {accept | drop | any | REVERS PARAMETERS: not command
Request specification. May only be given in parameters for DEFAULT command. Instructs to reverse the request for every packet.

). See "samples/waiting_packets.fws".

and its analogs). Initially default requests are ACCEPT ANY ANY... i.e. a single request for the first interface specified via option -d.

command (or using of UNFIX command).

command.

command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

(WAITALL PARAMETERS: no parameters
The analog of WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in DEFAULTS PARAMETERS: {accept | drop | any | REVERS PARAMETERS: not command
Request specification. May only be given in parameters for DEFAULT command. Instructs to reverse the request for every packet.

). See "samples/waiting_packets.fws".

and its analogs). Initially default requests are ACCEPT ANY ANY... i.e. a single request for the first interface specified via option -d.

command (or using of UNFIX command).

command.

command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT PARAMETERS: {accept | drop | any }
Analog of WAIT command. Adds the above packet to the set of packets which will be waited by command WAIT or its analogs. This command does not start actual waiting (doesn't suspend script execution). Nevertheless, just after adding the packet may be registered as received. If some packet is registered as received before the call to WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

(WAITALL PARAMETERS: no parameters
The analog of WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT PARAMETERS: {accept | drop | any }
Analog of WAIT command. Adds the above packet to the set of packets which will be waited by command WAIT or its analogs. This command does not start actual waiting (doesn't suspend script execution). Nevertheless, just after adding the packet may be registered as received. If some packet is registered as received before the call to WAIT (WAITALL PARAMETERS: no parameters
The analog of WAIT command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT command.

command (or using of UNFIX command).

command.

command (or using of UNFIX PARAMETERS: no parameters
By default after the work of WAIT command (its analogs) the statuses for all waited packets will be fixed, so there may be no packets to wait for the next call to WAIT. This command marks these old packets as newly added. The previous status for them will be lost. Take a note of that ALL old packets will be unfixed, so they will be waited: this may cause unexpected results. Consider the use of CLEARREG PARAMETERS: no parameters
Clears the information about all the packets which were added to the waited ones (by WAIT, ADD PARAMETERS:
Alias of TOWAIT command.

commands). They will not be displayed in final report (or in the report that is displayed by SHOWREP PARAMETERS: no parameters
Displays a report which is the same as that displayed while program termination.

command). If this command is typed at the end of script then it omits the displaying of final report (sense there are no packet in it).

command.

command).

) then the command will ignore it and wait for a next packet (see also SENDWAITOTHER PARAMETERS: no parameters
Works similar to "SEND WAITALL" sentence. Purpose: make atomic operation. Without this command there would be a chance that a waited packet did not cause command WAITALL stop waiting if it was accepted after SEND PARAMETERS: {accept | drop | any }
In common regime generates the packet defined above. In other regimes (testing packet filter, see command FASTTEST PARAMETERS: no parameters
Enables fasttest regime for packet filter test. See "samples/fasttest".

and option -c) may simply separate packets one from another, so by this command the current content of buffer will be fixed and the new packet will be registered. The requests after command don't make sense in common regime (only while testing packet filter).

but before WAITALL PARAMETERS: no parameters
The analog of WAIT command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT command.

command (or using of UNFIX command).

started waiting. However it would be registered as received in any case. This command should be always used when you need to send a request and RELIABLY receive a response on it never missing.

command.

command (or using of UNFIX PARAMETERS: no parameters
By default after the work of WAIT command (its analogs) the statuses for all waited packets will be fixed, so there may be no packets to wait for the next call to WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

. This command marks these old packets as newly added. The previous status for them will be lost. Take a note of that ALL old packets will be unfixed, so they will be waited: this may cause unexpected results. Consider the use of CLEARREG PARAMETERS: no parameters
Clears the information about all the packets which were added to the waited ones (by WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

command (or using of UNFIX command).

command.

command). If this command is typed at the end of script then it omits the displaying of final report (sense there are no packet in it).

command.

command).

) then the command will ignore it and wait for a next packet (see also SENDWAITOTHER PARAMETERS: no parameters
Works similar to "SEND PARAMETERS: {accept | drop | any }
In common regime generates the packet defined above. In other regimes (testing packet filter, see command FASTTEST PARAMETERS: no parameters
Enables fasttest regime for packet filter test. See "samples/fasttest".

WAITALL" sentence. Purpose: make atomic operation. Without this command there would be a chance that a waited packet did not cause command WAITALL PARAMETERS: no parameters
The analog of WAIT command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT command.

command (or using of UNFIX command).

stop waiting if it was accepted after SEND PARAMETERS: {accept | drop | any }
In common regime generates the packet defined above. In other regimes (testing packet filter, see command FASTTEST PARAMETERS: no parameters
Enables fasttest regime for packet filter test. See "samples/FASTTEST PARAMETERS: no parameters
Enables fasttest regime for packet filter test. See "samples/fasttest".

but before WAITALL PARAMETERS: no parameters
The analog of WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT PARAMETERS: {accept | drop | any }
Analog of WAIT command. Adds the above packet to the set of packets which will be waited by command WAIT or its analogs. This command does not start actual waiting (doesn't suspend script execution). Nevertheless, just after adding the packet may be registered as received. If some packet is registered as received before the call to WAIT (WAITALL PARAMETERS: no parameters
The analog of WAIT command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT command.

command (or using of UNFIX command).

command.

command). If this command is typed at the end of script then it omits the displaying of final report (sense there are no packet in it).

command.

command).

started waiting. However it would be registered as received in any case. This command should be always used when you need to send a request and RELIABLY receive a response on it never missing.

NAME PARAMETERS: <name of packet>
Defines the name of currently described packet which will be displayed in report instead of not obvious "Packet on line ..."

9
data '3*3'
TOWAIT PARAMETERS: {accept | drop | any }
Analog of WAIT command. Adds the above packet to the set of packets which will be waited by command WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

and its analogs). Initially default requests are ACCEPT ANY ANY... i.e. a single request for the first interface specified via option -d.

command (or using of UNFIX command).

command.

command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

and its analogs). Initially default requests are ACCEPT ANY ANY... i.e. a single request for the first interface specified via option -d.

command (or using of UNFIX command).

command.

command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

(WAITALL PARAMETERS: no parameters
The analog of WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT PARAMETERS: {accept | drop | any }
Analog of WAIT command. Adds the above packet to the set of packets which will be waited by command WAIT or its analogs. This command does not start actual waiting (doesn't suspend script execution). Nevertheless, just after adding the packet may be registered as received. If some packet is registered as received before the call to WAIT (WAITALL PARAMETERS: no parameters
The analog of WAIT command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT command.

command (or using of UNFIX command).

command.

command). If this command is typed at the end of script then it omits the displaying of final report (sense there are no packet in it).

command.

command).

) then the command will ignore it and wait for a next packet (see also SENDWAITOTHER PARAMETERS: no parameters
Works similar to "SEND WAITALL" sentence. Purpose: make atomic operation. Without this command there would be a chance that a waited packet did not cause command WAITALL stop waiting if it was accepted after SEND PARAMETERS: {accept | drop | any }
In common regime generates the packet defined above. In other regimes (testing packet filter, see command FASTTEST PARAMETERS: no parameters
Enables fasttest regime for packet filter test. See "samples/fasttest".

command (or using of UNFIX command).

started waiting. However it would be registered as received in any case. This command should be always used when you need to send a request and RELIABLY receive a response on it never missing.

command.

command (or using of UNFIX PARAMETERS: no parameters
By default after the work of WAIT command (its analogs) the statuses for all waited packets will be fixed, so there may be no packets to wait for the next call to WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

command (or using of UNFIX command).

command.

command). If this command is typed at the end of script then it omits the displaying of final report (sense there are no packet in it).

command.

command).

command (or using of UNFIX command).

). See "samples/waiting_packets.fws".

command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT PARAMETERS: {accept | drop | any }
Analog of WAIT command. Adds the above packet to the set of packets which will be waited by command WAIT or its analogs. This command does not start actual waiting (doesn't suspend script execution). Nevertheless, just after adding the packet may be registered as received. If some packet is registered as received before the call to WAIT (WAITALL PARAMETERS: no parameters
The analog of WAIT command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT command.

command (or using of UNFIX command).

command.

command). If this command is typed at the end of script then it omits the displaying of final report (sense there are no packet in it).

command.

command).

started waiting. However it would be registered as received in any case. This command should be always used when you need to send a request and RELIABLY receive a response on it never missing.

WAITALL PARAMETERS: no parameters
The analog of WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in DEFAULTS PARAMETERS: {accept | drop | any | REVERS PARAMETERS: not command
Request specification. May only be given in parameters for DEFAULT command. Instructs to reverse the request for every packet.

). See "samples/waiting_packets.fws".

and its analogs). Initially default requests are ACCEPT ANY ANY... i.e. a single request for the first interface specified via option -d.

command (or using of UNFIX command).

command.

command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

(WAITALL PARAMETERS: no parameters
The analog of WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT PARAMETERS: {accept | drop | any }
Analog of WAIT command. Adds the above packet to the set of packets which will be waited by command WAIT or its analogs. This command does not start actual waiting (doesn't suspend script execution). Nevertheless, just after adding the packet may be registered as received. If some packet is registered as received before the call to WAIT (WAITALL PARAMETERS: no parameters
The analog of WAIT command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT command.

command (or using of UNFIX command).

command.

command). If this command is typed at the end of script then it omits the displaying of final report (sense there are no packet in it).

command.

command).

) then the command will ignore it and wait for a next packet (see also SENDWAITOTHER PARAMETERS: no parameters
Works similar to "SEND WAITALL" sentence. Purpose: make atomic operation. Without this command there would be a chance that a waited packet did not cause command WAITALL stop waiting if it was accepted after SEND PARAMETERS: {accept | drop | any }
In common regime generates the packet defined above. In other regimes (testing packet filter, see command FASTTEST PARAMETERS: no parameters
Enables fasttest regime for packet filter test. See "samples/fasttest".

command (or using of UNFIX command).

started waiting. However it would be registered as received in any case. This command should be always used when you need to send a request and RELIABLY receive a response on it never missing.

command.

command (or using of UNFIX PARAMETERS: no parameters
By default after the work of WAIT command (its analogs) the statuses for all waited packets will be fixed, so there may be no packets to wait for the next call to WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

command (or using of UNFIX command).

command.

command). If this command is typed at the end of script then it omits the displaying of final report (sense there are no packet in it).

command.

command).

IFR PARAMETERS: <name of packet or status of last wait operation> "{" <block of script> "}" [ "else" "{" <second block of script> "}" ]
Processes the block of script if the last received packet (command WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in DEFAULTS PARAMETERS: {accept | drop | any | REVERS PARAMETERS: not command
Request specification. May only be given in parameters for DEFAULT command. Instructs to reverse the request for every packet.

). See "samples/waiting_packets.fws".

and its analogs). Initially default requests are ACCEPT ANY ANY... i.e. a single request for the first interface specified via option -d.

command (or using of UNFIX command).

command.

command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

, its analogs) has the given name (which was specified by command NAME PARAMETERS: <name of packet>
Defines the name of currently described packet which will be displayed in report instead of not obvious "Packet on line ..."

). "timeout" may be specified as the name of packet what means that the block must be processed in the case of timeout. Command will not distinguish newly added packets and old ones if they have the same name. Take a note of it when using UNFIX PARAMETERS: no parameters
By default after the work of WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

command (its analogs) the statuses for all waited packets will be fixed, so there may be no packets to wait for the next call to WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in DEFAULTS PARAMETERS: {accept | drop | any | REVERS PARAMETERS: not command
Request specification. May only be given in parameters for DEFAULT command. Instructs to reverse the request for every packet.

}
Defines default requests for packets. These requests will be applied when there are not enough explicitly defined requests for some packet (specified as parameters to command SEND, WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT command (its analogs) will work differently: it will always wait for the whole timeout (not terminating on first received packet). So several packets may be registered as received. This command also defines the timeout for TCP server while waiting for connections.

). See "samples/waiting_packets.fws".

and its analogs). Initially default requests are ACCEPT ANY ANY... i.e. a single request for the first interface specified via option -d.

the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

command (or using of UNFIX command).

command.

command). If this command is typed at the end of script then it omits the displaying of final report (sense there are no packet in it).

command.

command. See also CLEARREG PARAMETERS: no parameters
Clears the information about all the packets which were added to the waited ones (by WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in DEFAULTS PARAMETERS: {accept | drop | any | REVERS PARAMETERS: not command
Request specification. May only be given in parameters for DEFAULT command. Instructs to reverse the request for every packet.

). See "samples/waiting_packets.fws".

and its analogs). Initially default requests are ACCEPT ANY ANY... i.e. a single request for the first interface specified via option -d.

command (or using of UNFIX command).

command.

command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

, ADD PARAMETERS:
Alias of TOWAIT PARAMETERS: {accept | drop | any }
Analog of WAIT command. Adds the above packet to the set of packets which will be waited by command WAIT or its analogs. This command does not start actual waiting (doesn't suspend script execution). Nevertheless, just after adding the packet may be registered as received. If some packet is registered as received before the call to WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

(WAITALL PARAMETERS: no parameters
The analog of WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT PARAMETERS: {accept | drop | any }
Analog of WAIT command. Adds the above packet to the set of packets which will be waited by command WAIT or its analogs. This command does not start actual waiting (doesn't suspend script execution). Nevertheless, just after adding the packet may be registered as received. If some packet is registered as received before the call to WAIT (WAITALL PARAMETERS: no parameters
The analog of WAIT command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT command.

command (or using of UNFIX command).

command.

command). If this command is typed at the end of script then it omits the displaying of final report (sense there are no packet in it).

command.

command).

) then the command will ignore it and wait for a next packet (see also SENDWAITOTHER PARAMETERS: no parameters
Works similar to "SEND WAITALL" sentence. Purpose: make atomic operation. Without this command there would be a chance that a waited packet did not cause command WAITALL stop waiting if it was accepted after SEND PARAMETERS: {accept | drop | any }
In common regime generates the packet defined above. In other regimes (testing packet filter, see command FASTTEST PARAMETERS: no parameters
Enables fasttest regime for packet filter test. See "samples/fasttest".

command (or using of UNFIX command).

started waiting. However it would be registered as received in any case. This command should be always used when you need to send a request and RELIABLY receive a response on it never missing.

command.

command). If this command is typed at the end of script then it omits the displaying of final report (sense there are no packet in it).

command.
For tcp (udp) this command is also used to check the general status of last waiting operation. Status string "error" may be given to check if connection is closed already. Check for timeout or error may be also performed just after opening of connection by command OPEN PARAMETERS: <interface's type> <interface's name>
Opens interface of given type. Types: eth, ip, tcp, udp. For tcp this command will wait till connection with server is established or a client connection is accepted. For other types the command won't wait. See more in -d,-p,-T options.

. See samples/tcp_gateway, samples/http_client, samples/http_server.

error {
BREAK PARAMETERS: no parameters
Breaks the cycle caused by using CYC PARAMETERS: <number of iterations>
Command instructs that next WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

command (its analogs) or next block of script will be processed by several times = <number of iterations>. The "inf" value is available which means infinite iterant processing.

command.

}
IFR PARAMETERS: <name of packet or status of last wait operation> "{" <block of script> "}" [ "else" "{" <second block of script> "}" ]
Processes the block of script if the last received packet (command WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in DEFAULTS PARAMETERS: {accept | drop | any | REVERS PARAMETERS: not command
Request specification. May only be given in parameters for DEFAULT command. Instructs to reverse the request for every packet.

). See "samples/waiting_packets.fws".

and its analogs). Initially default requests are ACCEPT ANY ANY... i.e. a single request for the first interface specified via option -d.

command (or using of UNFIX command).

command.

command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

and its analogs). Initially default requests are ACCEPT ANY ANY... i.e. a single request for the first interface specified via option -d.

the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

command (or using of UNFIX command).

command.

command). If this command is typed at the end of script then it omits the displaying of final report (sense there are no packet in it).

command.

). See "samples/waiting_packets.fws".

and its analogs). Initially default requests are ACCEPT ANY ANY... i.e. a single request for the first interface specified via option -d.

command (or using of UNFIX command).

command.

command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

(WAITALL PARAMETERS: no parameters
The analog of WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT PARAMETERS: {accept | drop | any }
Analog of WAIT command. Adds the above packet to the set of packets which will be waited by command WAIT or its analogs. This command does not start actual waiting (doesn't suspend script execution). Nevertheless, just after adding the packet may be registered as received. If some packet is registered as received before the call to WAIT (WAITALL PARAMETERS: no parameters
The analog of WAIT command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT command.

command (or using of UNFIX command).

command.

command). If this command is typed at the end of script then it omits the displaying of final report (sense there are no packet in it).

command.

command).

) then the command will ignore it and wait for a next packet (see also SENDWAITOTHER PARAMETERS: no parameters
Works similar to "SEND WAITALL" sentence. Purpose: make atomic operation. Without this command there would be a chance that a waited packet did not cause command WAITALL stop waiting if it was accepted after SEND PARAMETERS: {accept | drop | any }
In common regime generates the packet defined above. In other regimes (testing packet filter, see command FASTTEST PARAMETERS: no parameters
Enables fasttest regime for packet filter test. See "samples/fasttest".

command (or using of UNFIX command).

started waiting. However it would be registered as received in any case. This command should be always used when you need to send a request and RELIABLY receive a response on it never missing.

command.

command). If this command is typed at the end of script then it omits the displaying of final report (sense there are no packet in it).

. See samples/tcp_gateway, samples/http_client, samples/http_server.

timeout {
data 'no answer'
}
else {
IFR PARAMETERS: <name of packet or status of last wait operation> "{" <block of script> "}" [ "else" "{" <second block of script> "}" ]
Processes the block of script if the last received packet (command WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in DEFAULTS PARAMETERS: {accept | drop | any | REVERS PARAMETERS: not command
Request specification. May only be given in parameters for DEFAULT command. Instructs to reverse the request for every packet.

). See "samples/waiting_packets.fws".

and its analogs). Initially default requests are ACCEPT ANY ANY... i.e. a single request for the first interface specified via option -d.

command (or using of UNFIX command).

command.

command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

and its analogs). Initially default requests are ACCEPT ANY ANY... i.e. a single request for the first interface specified via option -d.

the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

command (or using of UNFIX command).

command.

command). If this command is typed at the end of script then it omits the displaying of final report (sense there are no packet in it).

command.

). See "samples/waiting_packets.fws".

and its analogs). Initially default requests are ACCEPT ANY ANY... i.e. a single request for the first interface specified via option -d.

command (or using of UNFIX command).

command.

command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

(WAITALL PARAMETERS: no parameters
The analog of WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT PARAMETERS: {accept | drop | any }
Analog of WAIT command. Adds the above packet to the set of packets which will be waited by command WAIT or its analogs. This command does not start actual waiting (doesn't suspend script execution). Nevertheless, just after adding the packet may be registered as received. If some packet is registered as received before the call to WAIT (WAITALL PARAMETERS: no parameters
The analog of WAIT command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT command.

command (or using of UNFIX command).

command.

command). If this command is typed at the end of script then it omits the displaying of final report (sense there are no packet in it).

command.

command).

) then the command will ignore it and wait for a next packet (see also SENDWAITOTHER PARAMETERS: no parameters
Works similar to "SEND WAITALL" sentence. Purpose: make atomic operation. Without this command there would be a chance that a waited packet did not cause command WAITALL stop waiting if it was accepted after SEND PARAMETERS: {accept | drop | any }
In common regime generates the packet defined above. In other regimes (testing packet filter, see command FASTTEST PARAMETERS: no parameters
Enables fasttest regime for packet filter test. See "samples/fasttest".

command (or using of UNFIX command).

started waiting. However it would be registered as received in any case. This command should be always used when you need to send a request and RELIABLY receive a response on it never missing.

command.

command). If this command is typed at the end of script then it omits the displaying of final report (sense there are no packet in it).

. See samples/tcp_gateway, samples/http_client, samples/http_server.

4 {
data '4'
}
IFR PARAMETERS: <name of packet or status of last wait operation> "{" <block of script> "}" [ "else" "{" <second block of script> "}" ]
Processes the block of script if the last received packet (command WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in DEFAULTS PARAMETERS: {accept | drop | any | REVERS PARAMETERS: not command
Request specification. May only be given in parameters for DEFAULT command. Instructs to reverse the request for every packet.

). See "samples/waiting_packets.fws".

and its analogs). Initially default requests are ACCEPT ANY ANY... i.e. a single request for the first interface specified via option -d.

command (or using of UNFIX command).

command.

command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

and its analogs). Initially default requests are ACCEPT ANY ANY... i.e. a single request for the first interface specified via option -d.

the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

command (or using of UNFIX command).

command.

command). If this command is typed at the end of script then it omits the displaying of final report (sense there are no packet in it).

command.

). See "samples/waiting_packets.fws".

and its analogs). Initially default requests are ACCEPT ANY ANY... i.e. a single request for the first interface specified via option -d.

command (or using of UNFIX command).

command.

command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

(WAITALL PARAMETERS: no parameters
The analog of WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT PARAMETERS: {accept | drop | any }
Analog of WAIT command. Adds the above packet to the set of packets which will be waited by command WAIT or its analogs. This command does not start actual waiting (doesn't suspend script execution). Nevertheless, just after adding the packet may be registered as received. If some packet is registered as received before the call to WAIT (WAITALL PARAMETERS: no parameters
The analog of WAIT command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT command.

command (or using of UNFIX command).

command.

command). If this command is typed at the end of script then it omits the displaying of final report (sense there are no packet in it).

command.

command).

) then the command will ignore it and wait for a next packet (see also SENDWAITOTHER PARAMETERS: no parameters
Works similar to "SEND WAITALL" sentence. Purpose: make atomic operation. Without this command there would be a chance that a waited packet did not cause command WAITALL stop waiting if it was accepted after SEND PARAMETERS: {accept | drop | any }
In common regime generates the packet defined above. In other regimes (testing packet filter, see command FASTTEST PARAMETERS: no parameters
Enables fasttest regime for packet filter test. See "samples/fasttest".

command (or using of UNFIX command).

started waiting. However it would be registered as received in any case. This command should be always used when you need to send a request and RELIABLY receive a response on it never missing.

command.

command). If this command is typed at the end of script then it omits the displaying of final report (sense there are no packet in it).

. See samples/tcp_gateway, samples/http_client, samples/http_server.

9 {
data '9'
}
PRINTL PARAMETERS: <message>
Analog of PRINT PARAMETERS: <message>
Displays the given message. Use symbol
in message to indicate that line feed must be performed.

command. Additionally performs the line feed.

'server sent $data$'
}
SEND PARAMETERS: {accept | drop | any }
In common regime generates the packet defined above. In other regimes (testing packet filter, see command FASTTEST PARAMETERS: no parameters
Enables FASTTEST PARAMETERS: no parameters
Enables fasttest regime for packet filter test. See "samples/fasttest".

regime for packet filter test. See "samples/FASTTEST PARAMETERS: no parameters
Enables fasttest regime for packet filter test. See "samples/FASTTEST PARAMETERS: no parameters
Enables fasttest regime for packet filter test. See "samples/fasttest".

}

CLOSE PARAMETERS: <interface's name>
Closes interface with given name.

's'

CLEARREG PARAMETERS: no parameters
Clears the information about all the packets which were added to the waited ones (by WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in DEFAULTS PARAMETERS: {accept | drop | any | REVERS PARAMETERS: not command
Request specification. May only be given in parameters for DEFAULT command. Instructs to reverse the request for every packet.

). See "samples/waiting_packets.fws".

and its analogs). Initially default requests are ACCEPT ANY ANY... i.e. a single request for the first interface specified via option -d.

command (or using of UNFIX command).

command.

command). If any of them is received then command terminates. Command waits packets until timeout expires (command TIMEOUT PARAMETERS: <interval in milliseconds>
Defines the timeout for WAIT command (and its analogs), also for imitation of application's work. Null value means infinite timeout (such timeout will not be applied for imitation of application's work). In the case of negative value its absolute value will be obtained as timeout, but WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

(WAITALL PARAMETERS: no parameters
The analog of WAIT PARAMETERS: {accept | drop | any }
Waits for packet whose mask is defined above. The command will finish work when such packet is received on waitable interface. The waitable interface is interface for which strict request (accept or drop) have been specified in parameters to command or in defaults (command DEFAULT). For TCP device the command will only wait data on the main interface. In the general case command may wait no one but several packets (added by ADD PARAMETERS:
Alias of TOWAIT command.

). See "samples/waiting_packets.fws".

command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT PARAMETERS: {accept | drop | any }
Analog of WAIT command. Adds the above packet to the set of packets which will be waited by command WAIT or its analogs. This command does not start actual waiting (doesn't suspend script execution). Nevertheless, just after adding the packet may be registered as received. If some packet is registered as received before the call to WAIT (WAITALL PARAMETERS: no parameters
The analog of WAIT command. Doesn't add the previously defined packet to the list of waited ones. Starts waiting simply. Packets may be already added by ADD PARAMETERS:
Alias of TOWAIT command.

command (or using of UNFIX command).

command.

command). If this command is typed at the end of script then it omits the displaying of final report (sense there are no packet in it).

command.

command).

) then the command will ignore it and wait for a next packet (see also SENDWAITOTHER PARAMETERS: no parameters
Works similar to "SEND WAITALL" sentence. Purpose: make atomic operation. Without this command there would be a chance that a waited packet did not cause command WAITALL stop waiting if it was accepted after SEND PARAMETERS: {accept | drop | any }
In common regime generates the packet defined above. In other regimes (testing packet filter, see command FASTTEST PARAMETERS: no parameters
Enables fasttest regime for packet filter test. See "samples/fasttest".

command (or using of UNFIX command).

started waiting. However it would be registered as received in any case. This command should be always used when you need to send a request and RELIABLY receive a response on it never missing.

command.

command). If this command is typed at the end of script then it omits the displaying of final report (sense there are no packet in it).