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

Forum Discussion

Daniel_58687's avatar
Daniel_58687
Icon for Nimbostratus rankNimbostratus
18 years ago

original address

Hallo,

 

my problem...

 

 

i have a ltm 1500 v9.xx

 

 

i want to use the original address from the client ip to request iis

 

 

in my case, the ip adress from the virtuell server (f5) becomes the iis

 

 

to example:

 

 

192.168.65.10(clientip) request 192.168.65.20(ltm) redirect to 192.168.65.30

 

 

in my case i see the ip 192.168.65.20(ltm) on my iis

 

and i want to see the ip 192.168.65.10(clientip)

 

 

thanks for your help

2 Replies

  • Daniel_58687's avatar
    Daniel_58687
    Icon for Nimbostratus rankNimbostratus
    18 years ago
    Hello,

     

    your example ist for http. i look for https xfx

     

     

    is this possible?

     

     

    thanks
  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    18 years ago
    Hi,

     

     

    If the request being decrypted by the BIG-IP, then the BIG-IP can access the HTTP headers and insert the X-Forwarded-For header using an HTTP profile with the X-Forwarded-For option enabled. The IIS server could then parse the header value using the DLL. If BIG-IP isn't decrypting the SSL, then there isn't a way for it to access or modify the HTTP headers or data.

     

     

    Aaron