Hi,

Since I did update OpenBGPd (complete system update today), I did notice a strange behavior:

None of my eBGP sessions are being taken up wether IPv4 or IPv6

Jan 4 22:02:26 bgpgw-002 bgpd[9545]: neighbor 2001:470:14:98::1 (he-ipv6-bgp-peer): received notification: error in OPEN message, AS unacceptable

Tcpdump output:
22:05:53.890039 bgpgw-002.lncsa.com.29176 > interco-bgp-nerim.lncsa.com.bgp: P 1:46(45) ack 1 win 65535: BGP (OPEN: Version 4, AS #0, Holdtime 30, ID bgpgw-002.lncsa.com, Option length 16 ((CAP MULTI_PROTOCOL [IPv4 Unicast], CAP ROUTE_REFRESH, CAP AS4 #49463))) (DF) [tos 0xc0] [ttl 1] 22:05:53.937168 interco-bgp-nerim.lncsa.com.bgp > bgpgw-002.lncsa.com.29176: P 1:24(23) ack 46 win 16339: BGP (NOTIFICATION: error OPEN Message Error, subcode Bad Peer AS) [tos 0xc0] [ttl 1]

The setup consists of two OpenBSD boxes (one running current from last month, and the other one current from today).

To have it running again I have to copy the old (running on last month's current machine) bgpd bgpctl binaries to the "new" system and kill both instances of bgpd

Any clue ?

Thanks

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