Configuring Ipv6 Tunneling Over Ipv4 Mpls - Juniper BGP - CONFIGURATION GUIDE V 11.1.X Configuration Manual

JUNOSe 11.1.x BGP and MPLS Configuration Guide
routers of each domain. Routing between PE 1–ASBR 1 in AS 1 and between
PE 2–ASBR 2 in AS 2 is accomplished by means of label-switched paths.
IPv6 unlabeled routes are exchanged through the external MP-BGP session between
ASBR 1 and ASBR 2. Interdomain MPLS tunnels spanning multiple ASs are not
supported.

Configuring IPv6 Tunneling over IPv4 MPLS

To configure IPv6 tunneling over MPLS:
1.
2.
NOTE: For forwarding to work, you must configure at least one IPv6 interface on
each line module where MPLS-encapsulated IPv6 traffic is expected. You can easily
accomplish this by also configuring an IPv6 address on the core-facing interface.
3.
4.
5.
6.
478
Connecting IPv6 Islands Across IPv4 Clouds with BGP
On PE 1, configure both an IPv4 and an IPv6 interface toward the CE router.
Use an IPv4-compatible IPv6 address.
host1(config)#interface atm2/0.1
host1(config)#atm pvc 1 0 1 aal5snap
host1(config)#ip address 11.19.1.1 255.255.255.0
host1(config)#ipv6 address ::11.19.1.1/126
On PE 1, configure an IPv4 interface facing the core.
host1(config)#interface atm3/0.1
host1(config)#atm pvc 30 0 30 aal5snap
host1(config)#ip address 10.10.10.1 255.255.255.0
host1(config)#ip address ::10.10.10.1/120
On PE 1, configure a loopback interface.
host1(config)#interface loopback 1
host1(config)#ip address 1.1.1.1 255.255.255.0
On PE 1, configure an IPv4 IGP and an MPLS signaling protocol in the core.
On PE 1, set up a base tunnel, or verify that one exists between the loopback
addresses on the PE routers.
On PE 1, configure MP-BGP.
a. Enable BGP.
host1(config)#router bgp 100
b. Configure the MP-BGP CE and PE neighbors.
host1(config-router)#neighbor 11.19.1.2 remote-as 65000
host1(config-router)#neighbor 2.2.2.2 remote-as 100
c. Activate the neighbors in the IPv6 address-family.
host1(config-router)#address-family ipv6 unicast
host1(config-router-af)#neighbor 11.19.1.2 activate