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

Forum Discussion

Agathe_309970's avatar
Agathe_309970
Icon for Altocumulus rankAltocumulus
Apr 02, 2019

Logging some log on a remote syslog and not on the log file

Hi, I try to do something via iRules but it's not working. Our F5 BIG-IP is a reverse proxy and I want to log the public client IP to know who was connected to which URL. But it represents a lot ...
application delivery
big-ip
devops
irules
m_najafikhah_20's avatar
m_najafikhah_20
Icon for Nimbostratus rankNimbostratus
Apr 02, 2019

Hi

 

if you want to know public client IP , you must enable Xforwarder-for on LTM. another solution is your F5 logs to ship to Log collector (for example: to ArcSight Logger), after that you search any log without duplication logs.

 

Agathe_309970's avatar
Agathe_309970
Icon for Altocumulus rankAltocumulus
Apr 02, 2019

Hi,

 

Thank for your return.

 

Yes I have the X-Forwarded-For enabled. But it just inserts the information on the HTTP request no? So it is the server after the BIG-IP which recover this information. And I don't have the access on all the server behind the BIG-IP...

 

Thanks.