RPC Persistance, with changing IP address

Is there something clear text in the payload that is unique to each user? You could use an iRule to inspect each packet and search for something specific. The overhead could be high though. Ignoring that, will this actually be useful. I presume when a user's IP changes TCP/IP will RST the old connection and establish an entirely new one which will cause failures anyway no?

I assume your wireless setup is pretty basic.