Forum Discussion

Altostratus

Apr 04, 2021

TCL error with an universal irule

I implement a VS that use an Irule to do persistence based on XFF information, but I got a TCL error when the server response to the client It seems it happened only when the client is an Microfocu...

application delivery

BIG-IP

iRules

spalande
Apr 04, 2021
Is there a reason you are adding persistence in the http response event?
I think since you want to create persistence from the client side information (XFF/src address) adding it in the http request event would be enough.

when HTTP_REQUEST { if {[HTTP::header X-Forwarded-For] != ""} then { persist uie [lindex [ split [lindex [HTTP::header values X-Forwarded-For] 0] "," ] 0] } else { persist uie [IP::client_addr] } }