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

Forum Discussion

rmoss25's avatar
rmoss25
Icon for Altostratus rankAltostratus
Mar 11, 2021

Preserve Original Source IP thats not just Web Traffic

Hi, Is there a way to preserve the original source IP of traffic passing through an LTM Virtual server? We have enabled the Insert X-Forwarded-For option in the HTTP profile and while this works fo...
big-ip
devops
LTM
security
Nikoolayy1's avatar
Nikoolayy1
Icon for MVP rankMVP
Mar 22, 2021

For SMTP there is a posible solution as it is similar to HTTP as it also has headers:

 

https://devcentral.f5.com/s/question/0D51T00006i7N6U/adding-xheader-to-smtp

 

 

For DNS there is th EDNS Client Subnet:

 

https://devcentral.f5.com/s/articles/using-client-subnet-in-dns-requests-31948