For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

cymru81's avatar
cymru81
Icon for Altocumulus rankAltocumulus
May 01, 2019

X-Forwarded-For iRule

We are having problem where the ‘X-Forwarded-For’ header is missing when traffic is coming through the Load Balancer.   It has been working previously, but looking at what is coming back from the ...
application delivery
LTM
Rodrigo_Albuque's avatar
Rodrigo_Albuque
Icon for Cirrocumulus rankCirrocumulus
May 01, 2019

Well, the X-Forwarded-For setting is supposed to work out of the box. I've tested myself in my lab here and it works. You should post the output of your HTTP profile configuration:

 

tmsh list ltm profile http

 

As well as the configuration of the virtual server you attached it to

 

tmsh list ltm virtual

 

And lastly take a sample packet capture on tmm (0.0) interface using a sample client of your choice:

 

tcpdump -i 0.0:nnnp -s0 -w /shared/tmp/xforwarded-test-v1.pcap -v

 

Community members might try to help you here but if it gets too complicated I'd advise you to open a case with F5 support as they can request a snapshop of your configuration (called qkview) and have a more thorough view of your system.

 

Regards, Rodrigo