how to the anti virus programs is set my IP address ?

I don't really understand your question.

But your anti virus and IP address are 2 different things.

If you're getting messages regarding your IP address then it might be your firewall, if you have any or unless you have norton internet security, or system works.

Then it's just letting know that is blocking other's IP addresses so they don't access ur computer.

Might be, spyware, websites with jave, applets, scripts or maybe just a hacker trying to gain access to ur pc.

Nothing to worry about..