no tunnel:

Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
192.168.0.0     0.0.0.0         255.255.255.0   U         0 0          0 eth1
0.0.0.0         192.168.0.1     0.0.0.0         UG        0 0          0 eth1



with tunnel:

Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
208.48.140.22   0.0.0.0         255.255.255.255 UH        0 0          0 ppp0
192.168.0.0     0.0.0.0         255.255.255.0   U         0 0          0 eth1
0.0.0.0         192.168.0.1     0.0.0.0         UG        0 0          0 eth1