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

Forum Discussion

Ray_Sbrusch_941's avatar
Ray_Sbrusch_941
Icon for Nimbostratus rankNimbostratus
Oct 28, 2009

Preserving Client IP address for SMTP traffic

I know this topic has been discussed in the forums multiple times, but I never found implementation details which dont' require iRules or putting the BigIP in bridging mode.     I would li...
config
design
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Apr 28, 2010
Hi Bruno,

 

 

One of the ways the Perf HTTP profile improves performance is by performing source address translation and using OneConnect. If you need to preserve the original client IP address you could change to a standard HTTP profile and add a custom OneConnect profile with a 255.255.255.255 source mask. For details on the performance HTTP profile, try searching on AskF5.com. If you can't find relevant solutions, let me know.

 

 

Thanks, Aaron