XFF Universal Persistence iRule
Problem this snippet solves: Simple iRule to read the XFF header on an incoming HTTP Request and use a Universal Persistence ID.
Orginal iRule found to have an issue with multiple IP addresses in th...
Updated Jun 05, 2023
Version 2.0
Andy_McGrath
Cumulonimbus
Cumulonimbus
Yann_Desmarest
Cirrus
CirrusHi AMG,
I'm not 100% sure, but AFAIK, the RFC allow the request to contain more than one HTTP header with the same name. There is nothing specific to X-Forwarded-For header, so I assume the limitations are the same as other headers.
Moreover, in real life, I regularly face this kind of request containing several X-Forwarded-For headers. That's why I suggested to change the code to take into account this possibility.