For ESP you'll need both 443/TCP and 4500/UDP. 443/TCP is used for the control channel.
Hi,
Is there a way to eliminate using port 443 at all?
Thanks
Mazhar
Mazhar,
Yes, I've been told that the control data for the session always flows over TCP 443. If this is true then I dont understand how your sessions could be working. I would check your firewall logs to see if you have both 443 and 4500 coming from a client.
Justin