Having trouble with getting Windows XP boxes to route traffic after
establishing a VPN connection to at 10.3.8 server running PPTP and L2TP
VPN. Macs connect fine with Internet Connect, and can ping any device
on the remote private network via the VPN connection. The Windows XP
box connects fine to the VPN server, but gets a subnet mask of
255.255.255.255. The Windows XP box, in turn, can't ping any devices
on the remote private network via the VPN connection.