Could someone please explain what I am seeing here:
R1941#sh ip route ! Gateway of last resort is 0.0.0.0 to network 0.0.0.0 ! S* 0.0.0.0/0 is directly connected, Dialer0 126.96.36.199/8 is variably subnetted, 2 subnets, 2 masks C 188.8.131.52/24 is directly connected, Loopback0 L 184.108.40.206/32 is directly connected, Loopback0 10.0.0.0/8 is variably subnetted, 7 subnets, 2 masks C 10.1.1.0/24 is directly connected, Vlan10 L 10.1.1.1/32 is directly connected, Vlan10 C 10.1.4.0/24 is directly connected, Vlan40 L 10.1.4.5/32 is directly connected, Vlan40 C 10.1.6.0/24 is directly connected, GigabitEthernet0/0 L 10.1.6.5/32 is directly connected, GigabitEthernet0/0 C 10.20.23.126/32 is directly connected, Dialer0 220.127.116.11/32 is subnetted, 1 subnets C 106.69.xxx.xxx is directly connected, Dialer0 R1941#
The bit I'm concerned about is what is 10.20.23.126/32 doing in the routing table connected to Dialer0? I cannot ping it but a traceroute gives:
R1941#traceroute 10.20.23.123 Type escape sequence to abort. Tracing the route to 10.20.23.123 VRF info: (vrf in name/id, vrf out name/id) 1 10.20.23.126 12 msec 12 msec 16 msec 2 10.20.23.126 !A * * ! R1941#ping 10.20.23.126 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.20.23.126, timeout is 2 seconds: .U... Success rate is 0 percent (0/5) R1941#
What has this got to do with VRF?
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On PPPoE, the peers IP addresses do not have to be in the same subnet. One guess I have, without looking at your configuration, is that R1941 learned its neighbor route, which you can disable using no peer neighbor-route interface level command.
Thanks for the reply. That might be it. It is strange that an ISP would use a private IP address on their external interface. So you're saying the next hop address is 10.20.23.126? It is a PPPoE connection to my ISP. I cannot ping it though. Is there anyway I can verify this?