I have a sales user that works out of his home. He uses a Windows 7 laptop inconjunction with a Cisco IPSEC VPN client to connect back to our corporate office. Prior to him receiving his Windows 7 laptop while he was still on XP, he had no problems connecting to VPN nor accessing internal resources. Now that he has gotten his Windows 7 laptop, he can connect to the VPN client but once connected he cannot access any resources. After first I thought it was a DNS resolution issue but after further investigation, I notice he cannot ping IP addresses either.
If we take his laptop to any other location other than his house it works fine. After further investigation, it appears that his ISP is now utilizing IPv6. Is this what is causing the issues I am having?