Hi,

Background:

Two OpenBSD routers hooked each to two ISPs.

Announced networks:
2001:7a8:820::/44
213.215.28.0/23

Relevant config snippets on bgpgw-001:
http://pastebin.com/m77017bcd

Relevant config snippets on bgpgw-002:
http://pastebin.com/d74d05557

Strangeness:

On peer bgpgw-001: v4 and v6 networks are announced. On bgpgw-002 v6 networks are received from bgpgw-001 but not announced.

bgpgw-001:/var/log# bgpctl sho rib neigh nerim-ipv6-bgp-peer out
flags: * = Valid, > = Selected, I = via IBGP, A = Announced
origin: i = IGP, e = EGP, ? = Incomplete

flags destination         gateway          lpref   med aspath origin
AI*>  2001:7a8:820::/44   ::                 100     0 i
bgpgw-001:/var/log# bgpctl sho rib neigh nerim-ipv4-bgp-peer out
flags: * = Valid, > = Selected, I = via IBGP, A = Announced
origin: i = IGP, e = EGP, ? = Incomplete

flags destination         gateway          lpref   med aspath origin
AI*>  213.215.28.0/23     0.0.0.0            100     0 i


bgpgw-002:~# bgpctl sho rib neigh nerim-ipv6-bgp-peer out
flags: * = Valid, > = Selected, I = via IBGP, A = Announced
origin: i = IGP, e = EGP, ? = Incomplete

flags destination         gateway          lpref   med aspath origin
I*>   2001:7a8:820::/44   2001:7a8:820::1    100     0 i
bgpgw-002:~# bgpctl sho rib neigh nerim-ipv4-bgp-peer out
flags: * = Valid, > = Selected, I = via IBGP, A = Announced
origin: i = IGP, e = EGP, ? = Incomplete

flags destination         gateway          lpref   med aspath origin
AI*>  213.215.28.0/23     0.0.0.0            100     0 i

Thanks

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