Here is the asa 5505 Configuration. VPN is not responding. When I check my IP address in the website "whatismyip.com" it is showing A.B.C.X. I believe it shoud be A.B.C.A. Also I am not able to access (https://A.B.C.A) firewall from public untrusted network. Please help .
Could it be that your ISP is doing some sort of proxy or NAT for some connections - like http you mentioned?
A simple packet capture on ASA will show you if the ASA is receiveing those packets.