MPLS VPN Issue - Can't Ping (MPLS Encapsulation Failed)

Hi,

I copied the MPLS VPN configuration (with slight modifications) from the following document but can't ping any remote addresses in the VRF.

The routing tables/path on all of the PE routers are correct and there are no ACL's that would be restricting ICMP traffic.

I've also set the MTU/MPLS MTU and it still fails encapsulation.

Can anyone think of a reason why MPLS encapsulation is failing? I can a provide a copy of the configuration on each router is required.

****************************************************************** Output of debug IP packet:

R5#ping vrf Customer_A 192.168.4.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.4.1, timeout is 2 seconds:

*Mar 1 05:58:55.021: IP: tableid=1, s=192.168.5.1 (local), d=192.168.4.1 (FastEthernet0/0), routed via FIB *Mar 1 05:58:55.021: IP: s=192.168.5.1 (local), d=192.168.4.1 (FastEthernet0/0), len 100, sending *Mar 1 05:58:55.021: IP: s=192.168.5.1 (local), d=192.168.4.1 (FastEthernet0/0), len 100, MPLS encapsulation failed *Mar 1 05:58:55.390: IP: s=5.5.5.5 (local), d=224.0.0.10 (Loopback0), len 60, sending broad/multicast *Mar 1 05:58:55.390: IP: s=5.5.5.5 (Loopback0), d=224.0.0.10, len 60, rcvd 2 *Mar 1 05:58:55.450: IP: s=10.1.1.5 (local), d=224.0.0.10 (FastEthernet0/0), len 60, sending broad/multicast *Mar 1 05:58:55.450: IP: s=10.1.1.5 (FastEthernet0/0), d=224.0.0.10, len 60, rcvd 2. *Mar 1 05:58:56.584: IP: s=10.1.1.1 (FastEthernet0/0), d=224.0.0.10, len 60, rcvd 2 *Mar 1 05:58:57.025: IP: tableid=1, s=192.168.5.1 (local), d=192.168.4.1 (FastEthernet0/0), routed via FIB *Mar 1 05:58:57.025: IP: s=192.168.5.1 (local), d=192.168.4.1 (FastEthernet0/0), len 100, sending *Mar 1 05:58:57.025: IP: s=192.168.5.1 (local), d=192.168.4.1 (FastEthernet0/0), len 100, MPLS encapsulation failed. *Mar 1 05:58:57.918: IP: s=10.1.1.5 (local), d=255.255.255.255 (FastEthernet0/0), len 48, sending broad/multicast *Mar 1 05:58:58.130: IP: s=10.1.1.1 (FastEthernet0/0), d=255.255.255.255, len 48, rcvd 0 *Mar 1 05:58:59.028: IP: tableid=1, s=192.168.5.1 (local), d=192.168.4.1 (FastEthernet0/0), routed via FIB *Mar 1 05:58:59.028: IP: s=192.168.5.1 (local), d=192.168.4.1 (FastEthernet0/0), len 100, sending *Mar 1 05:58:59.028: IP: s=192.168.5.1 (local), d=192.168.4.1 (FastEthernet0/0), len 100, MPLS encapsulation failed *Mar 1 05:58:59.753: IP: s=5.5.5.5 (local), d=224.0.0.10 (Loopback0), len 60, sending broad/multicast *Mar 1 05:58:59.753: IP: s=5.5.5.5 (Loopback0), d=224.0.0.10, len 60, rcvd 2. *Mar 1 05:59:00.342: IP: s=10.1.1.5 (local), d=224.0.0.10 (FastEthernet0/0), len 60, sending broad/multicast *Mar 1 05:59:00.342: IP: s=10.1.1.5 (FastEthernet0/0), d=224.0.0.10, len 60, rcvd 2 *Mar 1 05:59:01.027: IP: tableid=1, s=192.168.5.1 (local), d=192.168.4.1 (FastEthernet0/0), routed via FIB *Mar 1 05:59:01.027: IP: s=192.168.5.1 (local), d=192.168.4.1 (FastEthernet0/0), len 100, sending *Mar 1 05:59:01.027: IP: s=192.168.5.1 (local), d=192.168.4.1 (FastEthernet0/0), len 100, MPLS encapsulation failed *Mar 1 05:59:01.512: IP: s=10.1.1.1 (FastEthernet0/0), d=224.0.0.10, len 60, rcvd 2 *Mar 1 05:59:01.941: IP: s=10.1.1.5 (local), d=255.255.255.255 (FastEthernet0/0), len 48, sending broad/multicast. *Mar 1 05:59:02.894: IP: s=10.1.1.1 (FastEthernet0/0), d=255.255.255.255, len 48, rcvd 0 *Mar 1 05:59:03.031: IP: tableid=1, s=192.168.5.1 (local), d=192.168.4.1 (FastEthernet0/0), routed via FIB *Mar 1 05:59:03.031: IP: s=192.168.5.1 (local), d=192.168.4.1 (FastEthernet0/0), len 100, sending *Mar 1 05:59:03.031: IP: s=192.168.5.1 (local), d=192.168.4.1 (FastEthernet0/0), len 100, MPLS encapsulation failed. Success rate is 0 percent (0/5) ****************************************************************** read more and respond »

Posted 5 years ago by Peter Danes in Cisco Systems

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