BGP IPv6 Route Filtering on Cisco IOS

Lessons Discussion
17

Hi,

There is an error in your last configuration on R1.

hostname R1
!
ipv6 unicast-routing
!
interface FastEthernet0/0
 ipv6 address 2001:DB8:0:12::1/64
!
interface Loopback0
 ipv6 address 2001:DB8:0:1::1/64
!
interface Loopback1
 ipv6 address 2001:DB8:0:11::1/64
!
interface Loopback2
 ipv6 address 2001:DB8:0:111::1/64
!
interface Loopback3
 ipv6 address 2001:DB8:0:1111::1/64
!
router bgp 1
 bgp router-id 1.1.1.1
 bgp log-neighbor-changes
 neighbor 2001:DB8:0:12::2 remote-as 2
 !
 address-family ipv4
  neighbor 2001:DB8:0:12::2 activate
  neighbor 2001:DB8:0:12::2 route-map PREPEND out
 exit-address-family
 !
 address-family ipv6
  network 2001:DB8:0:1::/64
  network 2001:DB8:0:11::/64
  network 2001:DB8:0:111::/64
  network 2001:DB8:0:1111::/96

---

interface Loopback3
 ipv6 address 2001:DB8:0:1111::1/64

must be /96 to be advertised by MP-BGP.

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