Bug ID 824149: SIP ALG virtual with source-nat-policy cores if traffic does not match the source-nat-policy or matches the source-nat-policy which does not have source-translation configured

Last Modified: Jul 12, 2023

Affected Product(s):
BIG-IP TMOS(all modules)

Known Affected Versions:
13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,, 14.0.0,,,,,, 14.0.1,, 14.1.0,,,,,, 14.1.2,,,,, 15.0.0, 15.0.1,,,, 15.1.0,,,,

Fixed In:

Opened: Sep 09, 2019

Severity: 3-Major


In SIP ALG virtual with source-nat-policy assigned, if traffic processed by the virtual server does not match source-nat-policy, or if it matches source-nat-policy that does not have source-translation configured, tmm cores and restarts.


Traffic disrupted while tmm restarts.


-- SIP ALG virtual server with an assigned source-nat-policy. -- Traffic does not match the source-nat-policy, or traffic matches a source-nat-policy that has no source-translation configured.


Configure SIP ALG virtual so that the condition never happens. For example, apply a source attribute to the virtual server that filters out traffic that will not match the source-nat-policy. Never use a source-nat-policy that has no source-translation.

Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips