I have a Cisco PIX 501 at an office that users connect to when they're at home. They are all using the Microsoft VPN client/software built-in to Windows XP Pro.
I went through the setup wizard on the PIX 501 to setup client VPN access; everything seemed to go smoothly.
When clients are connected via VPN to the PIX, everyone can access internal network resources (computer, printers, servers, etc.) just fine. However, they can't browse the Internet or do anything externally. After they disconnect the from VPN, Internet works fine again.
When I went through the setup wizard on the PIX, it asked for DNS servers to assign to the clients; I entered the same thing that I assign the computers inside the LAN--
DNS 1: 192.168.1.33 (Win Small Biz Server 2003/domain controller)
DNS 2: 68.13.16.xxx (ISP's DNS server)
If you need more info on the setup, just let me know. any help is appreciated!! Thanks!