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Chapter 14 ALG
ZyWALL (ZLD) CLI Reference Guide
120
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 61 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.
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