BGP Lab 16 IPv6 over IPv4 BGP session (CCNP Level)

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Download Lab: GNS3

Image requirements:
 Cisco IOSv        (vios-adventerprisek9-m.vmdk.SPA.156-2.T)


Introduction:

Dual-stack is coming, now all autonomous systems in the topology want to run IPv6 as well, but there are limitations with AS250, IPv6 connectivity has to be established over the existing IPv4 infrastructure. This lab provides you with an opportunity to configure MP-BGP sessions between AS250, AS101, and AS102.


Lab tasks:

1. Configure router ER1 to have IPv6 BGP neighborship to routers ISP1 and ISP2.

2. Configure router ER2 to have IPv6 BGP neighborship to routers ISP1 and ISP2.

3. Configure router ISP1 to have IPv6 BGP neighborship to routers ER1 and ER2.

4. Configure router ISP2 to have IPv6 BGP neighborship to routers ER1 and ER2.

Sub-steps:
For each task above complete this:
   * Configure route-map to set IPv6 next-hop address.
   * Switch to MP-BGP mode by entering IPv6 address-family configuration mode.
   * Activate IPV4 neighbor in IPv6 address-family.
   * Use route-map with the neighbor command to send IPv6 next-hop address to the peer to use.


Configuration example:
!
ER1(config)#route-map IPV6_NEXT_HOP permit 10
ER1(config-route-map)#set ipv6 next-hop 2001:DB8:250:1000::101
ER1(config-route-map)#exit
!
ER1(config)#router bgp 250
ER1(config-router)#address-family ipv6
ER1(config-router-af)#neighbor 50.0.0.100 activate
ER1(config-router-af)#neighbor 50.0.0.100 route-map IPV6_NEXT_HOP out

Verify:
ER1# show bgp ipv6 unicast summary
ER1# show bgp ipv6 unicast


Topology: