> php not but perhaps the client its not clear and commonly defined what > clients do with cookies on reconnect and stuff or long idle times. Maybe not, but I'd be really surprised. An HTTP client is supposed to decide whether to send a cookie by looking at the domain name and path of the URL it's requesting. These things are at a totally different layer from IP addresses -- and even if they weren't, in most cases I would think a browser is going to be ignorant of public IP address changes because it's going to be behind a NAT device. > I would expect as source the new browsers where more and more users use > subwindows to have concurrent sessions, does anybody know how they handle ip > changes? I'm not. What specific situation do you have in mind in which a browser would even be aware of an IP change on the client side? Maybe there are common cases I'm not thinking of. Ben -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php