VPN IP trafficLocked
My company has one remote site. Our main site has a PIX 501 and DSL. The remote site has a DSL connection with a cisco678. The remote site has 20 users and one server which is a Win2000 domain controller. We wrote a script to connect the remote Win2000 DC to our main site using a Cisco VPN client. The remote DC and the DC at our main site then synch. It all worked great for a few months.
Now for some reason the remote DC can still connect to the PIX but the 2 DC’s cannot synch. The remote DC has lost the ability to ping any machine on the main network after it connects to the PIX with the Cisco VPN client. Other machines on the remote network can connect to the PIX with the Cisco VPN client and successfully ping machines on the main network. As a test we set up PPTP on the PIX and set up the Microsoft VPN client on the Win2000 remote DC. The remote DC connects fine to the PIX but still can’t pass IP traffic. It does not appear to be a problem with the VPN clients, the PIX, or the cisco678. The remote Win2000 DC can ping machines on its remote network when not connected through the VPN to the PIX. Does anyone have any ideas what might be preventing ip traffic from passing through these vpn connections? There has to be some file or setting on the remote DC causing the problem.