iRule for fallback persistence

You can change the sourceIP with a SNAT, but it would be changed on egress. Simple persistence inside of LTM looks at the source address upon ingress, before any iRule processing, so that wouldn't solve your problem.

 

 

You'll need to include both persistence methods in your iRule.

 

 

If you search the forum for "jsessionid", you'll find some examples of iRules which use cookies if they exist, and fallback to URI parameters otherwise. I'm thinking you could modify that logic to look for whatever primary persistence token you are currently using, and if non-existent, use [HTTP::header "True-Client-IP"] as a fallback.

 

 

HTH

 

/deb