Hi Anurag,
node4# show bgp ipv6 neighbors 2607:1b00:10:a::1 advertised-routes BGP table version is 0, local router ID is 199.116.78.28 Status codes: s suppressed, d damped, h history, * valid, > best, i - internal, r RIB-failure, S Stale, R Removed Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path *> 2607:1b00:d1::/48 :: 0 100 32768 i *> 2607:1b00:d2::/48 :: 0 100 32768 i
Total number of prefixes 2
TH: That next-hop does look suspect. If they're on the same subnet, try disabling next-hop-self. It will just use link-local addressing on the foreign side, should the next hop be unreachable. It could be that with next-hop-self configured and no IPv6 address on lo, this isn't working correctly. Do you have a global address on lo?
Here's what my Quagga bgpd.conf looks like:
hostname node4 timers bgp 4 16
router bgp 54456 bgp router-id 199.116.78.28 redistribute connected metric 1 redistribute static metric 1
TH: One thing you should add for sanity: no bgp default ipv4-unicast Otherwise Quagga will default to advertising IPv4 address family via IPv6 neighbors. 'bgp network import-check' is also useful to ensure Quagga behaves in the same way as a Cisco/Juniper router when it comes to advertisements (this goes for both address families).
neighbor 2607:1b00:10:a::1 remote-as 54456 neighbor 2607:1b00:10:a::1 next-hop-self
address-family ipv6 network 2607:1b00:d1::/48 network 2607:1b00:d2::/48 neighbor 2607:1b00:10:a::1 activate exit-address-family
TH: This looks fine otherwise. Tom