frr version 8.4_git
frr defaults traditional
hostname R1
no ipv6 forwarding
!
interface eth1
 description "Link to C1"
 ipv6 address 2001:db8:0:1::1/64
exit
!
interface eth2
 description "Link to R2"
 ipv6 address 2001:db8:0:2::1/64
exit
!
router bgp 65501
 no bgp ebgp-requires-policy
 neighbor 2001:db8:0:1::2 remote-as 64512
 neighbor 2001:db8:0:1::2 capability extended-nexthop
 neighbor 2001:db8:0:2::2 remote-as 65502
 neighbor 2001:db8:0:2::2 capability extended-nexthop
 !
 address-family ipv6 unicast
  neighbor 2001:db8:0:1::2 activate
  neighbor 2001:db8:0:2::2 activate
 exit-address-family
exit
!