Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

jlarger's avatar
jlarger
Icon for Cirrus rankCirrus
Apr 18, 2019

How to ID virtual, pool, or node that is involved from a TCL error log entry?

For example: Apr 18 05:52:46 slot1/someLBname err tmm1[13195]: 01220001:3: TCL error: /Common/x-forwarding - Operation not supported (line 1) invoked from within "HTTP::header insert X-Forwarded...
application delivery
irules
TMSH
tHelOsTbOyDan_1's avatar
tHelOsTbOyDan_1
Icon for Nimbostratus rankNimbostratus
Apr 18, 2019

What are the iRule statements before the line that you listed? TCL error: /Common/x-forwarding - Operation not supported (line 1) invoked from within "HTTP::header insert X-Forwarded-For [IP::remote_addr]"