assuming his lan is 192.168.0.x and some internal
router is 192.168.0.2 , something as the following
for logon will be sufficient.

route delete 0.0.0.0
route add -p 192.168.0.0 mask 255.255.255.0 192.168.0.2 metric 1
route add -p 0.0.0.0 mask 0.0.0.0 127.0.0.1 metric 2

[ 13 May 2002, 22:28: Message edited by: novastar ]