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Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
OL-23826-09
Chapter 37 IPv6 over MPLS: 6PE and 6VPE
How to Configure IPv6 over MPLS: 6PE and 6VPE
Configuring 6VPE
6VPE requires setting up of IPv6 connectivity from PE to CE routers, MP-BGP peering to the
neighboring PE and MPLS/IPv4 connectivity to the core network using supported routing protocols
(like OSPF, IS-IS, EIGRP, Static) as done in 6PE. In addition, IPv6 VRFs have to be created on the PE
routers and attached to the interfaces connecting to CE routers. IPv6-only or dual-stack(multi-protocol)
VRFs support IPv6 VRF definitions.
To configure 6VPE, perform the tasks given below:
• Setting up IPv6 Connectivity from PE to CE Routers
• Setting up MP-BGP Peering to the Neighboring PE
• Setting up MPLS/IPv4 Connectivity with LDP
• Creating IPv6 VRFs on PE Routers
Setting up IPv6 Connectivity from PE to CE Routers
To configure IPv6 connectivity from PE to CE routers, complete the following steps:
SUMMARY STEPS
1. enable
2. configure terminal
3. router bgp as-number
4. address-family ipv6 [vrf vrf-name]
5. neighbor {ip-address | ipv6-address | peer-group-name} remote-as as-number
6. neighbor {ip-address | ipv6-address | peer-group-name} activate
7. exit-address-family
DETAILED STEPS
Command Purpose
Step 1
enable
Example:
Router> enable
Enables privileged EXEC mode.
• Enter your password if prompted.
Step 2
configure terminal
Example:
Router# configure terminal
Enters global configuration mode.
Step 3
router bgp
as-number
Example:
Router(config)# router bgp 100
Enters the number that identifies the autonomous system (AS) in
which the router resides.
• as-number—Autonomous system number. Range for 2-byte
numbers is 1 to 65535. Range for 4-byte numbers is 1.0 to
65535.65535.