ipv6 unicast-routing
ipv6 route 2001:738:7001:2000::0/64 2001:738:7001:2003:1000::227
router bgp 5
 neighbor 1234::10:5:1:2 remote-as 4
 neighbor 1234::10:6:1:1 remote-as 6
 address-family ipv6 unicast
  neighbor 1234::10:5:1:2 activate
  neighbor 1234::10:6:1:1 activate
  network 1234::10:5:0:0/96
  network 2001:738:7001:2003:1000::0/68
  network 2001:738:7001:2000::0/64
  redistribute connected
  aggregate-address 1234::10:5:0:0/96 summary-only