4000 Router Series MPLS Configuration Guide

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Interface : POS5/0 Cost : 0

Destination: FE80::/10 Protocol : Direct

NextHop : :: Preference: 0

Interface : NULL0 Cost : 0

Destination: FF00::/8 Protocol : Direct

NextHop : :: Preference: 0

Interface : NULL0 Cost : 0

# From each CE, ping other CEs. CEs of the same VPN can ping each other, whereas those of different

VPNs should not. For example, CE 1 can ping CE 3 (2001:3::1), but cannot ping CE 4 (2001:4::1).

Configuring an IPv6 MPLS L3VPN over a GRE tunnel

Network requirements

CE 1 and CE 2 belong to VPN 1. The PEs support MPLS, while the P router does not support MPLS and

provides only IP functions.

On the backbone, use a GRE tunnel to encapsulate and forward packets for IPv6 MPLS L3VPN.

Configure tunnel policies on the PEs, and specify the tunnel type for VPN traffic as GRE.

Figure 63 Network diagram

Device Interface IP address

Device

Interface

IP address

CE 1 Eth1/1 2001:1::1/96 P POS5/0 172.1.1.2/24

PE 1 Loop0 1.1.1.9/32

POS5/1

172.2.1.1/24

Eth1/1 2001:1::2/96

PE 2

Loop0

2.2.2.9/32

POS5/1 172.1.1.1/24 Eth1/1 2001:2::2/96

Tunnel0 20.1.1.1/24

POS5/0

172.2.1.2/24

CE 2 Eth1/1 2001:2::1/96

Tunnel0

20.1.1.2/24