I’ve got a 1721 Cisco router running 12.4 IP Base with an internal T1 DSU on interface serial0. This router is going to become a CE router to a MPLS network soon and I’m trying to figure this thing out. I’ve only got one Fast Ethernet port on the router and then the DSU, the connection to the MPLS network will be delivered over a T1 to my router so that’s already ok but I’m confused about the routing. The way I see it things will be setup like this:
conf t
interface f0
ip address 10.2.122.3 255.255.255.0
interface f0.1
ip address 10.2.122.2 255.255.255.0
encapsulation dot1Q 101
interface serial0
ip address 10.2.122.1
encapsulation ppp
ip route 0.0.0.0 0.0.0.0 10.2.122.1
END
Is this the correct way to incorporate the T1/Serial0 into the picture? I might be way off so please let me know what you think. After I’ve got the basic communication down I’ve got to configure DSCP/QoS for VoIP but before all that mess I want to get the logic straight. Thanks!
