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Implementing MPLS VPNs over IP Tunnels on Cisco IOS XR Software
How to Configure MPLS VPNs over IP Tunnels
MPC-285
Cisco IOS XR MPLS Configuration Guide
OL-12284-01
Configuring Inter-AS and CSC support over IP Tunnels
These tasks describe how to configure Inter-AS and CSC support over IP tunnels:
• Configuring the ASBRs to Exchange VPN-IPv4 Addresses for IP Tunnels, page MPC-285
(required)
• Configuring the Backbone Carrier Core for IP Tunnels, page MPC-288
• Configuring CSC-PE Routers for IP Tunnels, page MPC-288
Configuring the ASBRs to Exchange VPN-IPv4 Addresses for IP Tunnels
Perform this task to configure an external Border Gateway Protocol (eBGP) autonomous system
boundary router (ASBR) to exchange VPN-IPv4 routes with another autonomous system for IP tunnels
Note This procedure is supported on the Cisco XR 12000 Series Router.
SUMMARY STEPS
1. configure
2. router bgp autonomous-system-number
3. address-family {ipv4 tunnel}
4. address-family {vpnv4 unicast}
5. neighbor ip-address
6. remote-as autonomous-system-number
7. address-family {vpnv4 unicast}
8. route-policy route-policy-name {in}
9. route-policy route-policy-name {out}
10. neighbor ip-address
11. remote-as autonomous-system-number
12. update-source interface-type interface-number
13. address-family {ipv4 tunnel}
14. address-family {vpnv4 unicast}
15. end
or
commit