iRules for monitoring source and destination address

I think a good question to ask here is what are you trying to accomplish?? What kind of traffic is this? Do you have persistence enabled?

 

 

If you're looking to track time spent on your web site/web app, some analytic tools on the webserver side might serve you better...

 

 

It sounds like this is something ongoing you want to monitor from the mention of logging.. but if it isn't you could measure absolute time by running some TCP dumps and keying on the source address...