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Chapter 14 ALG
ZyWALL (ZLD) CLI Reference Guide
128
14.2 ALG Commands
The following table lists the alg commands. You must use the configure terminal command to
enter the configuration mode before you can use these commands.
Table 63 alg Commands
COMMAND DESCRIPTION
[no] alg sip [inactivity-
timeout | signal-port
<1025..65535> | signal-
extra-port <1025..65535> |
media-timeout <1..86400> |
signal-timeout <1..86400> |
transformation]
Turns on or configures the ALG.
Use inactivity-timeout to have the ZyWALL apply SIP media and
signaling inactivity time out limits.
Use signal-port with a listening port number (1025 to 65535) if you are
using SIP on a port other than UDP 5060.
Use signal-extra-port with a listening port number (1025 to 65535) if
you are also using SIP on an additional UDP port number, enter it here.
Use media-timeout and a number of seconds (1~86400) for how long to
allow a voice session to remain idle (without voice traffic) before dropping
it.
Use signal-timeout and a number of seconds (1~86400) for how long to
allow a SIP signaling session to remain idle (without SIP packets) before
dropping it.
Use transformation to have the ZyWALL modify IP addresses and port
numbers embedded in the SIP data payload. You do not need to use this if
you have a SIP device or server that will modify IP addresses and port
numbers embedded in the SIP data payload.
The no command turns off the SIP ALG or removes the settings that you
specify.
[no] alg <h323 | ftp>
[signal-port <1025..65535> |
signal-extra-port
<1025..65535> |
transformation]
Turns on or configures the H.323 or FTP ALG.
Use signal-port with a listening port number (1025 to 65535) if you are
using H.323 on a TCP port other than 1720 or FTP on a TCP port other
than 21.
Use signal-extra-port with a listening port number (1025 to 65535) if
you are also using H.323 or FTP on an additional TCP port number, enter it
here.
Use transformation to have the ZyWALL modify IP addresses and port
numbers embedded in the H.323 or FTP data payload. You do not need to
use this if you have an H.323 or FTP device or server that will modify IP
addresses and port numbers embedded in the H.323 or FTP data payload.
The no command turns off the H.323 or FTP ALG or removes the settings
that you specify.
[no] alg sip defaultport
<1..65535>
Adds (or removes) a custom UDP port number for SIP traffic.
show alg <sip | h323 | ftp> Displays the specified ALG’s configuration.