Hello Ilham,
You can disable ECMP with `ecmp off;` in the protocol `ospfv3v6` as a
workaround (if you don’t need ECMP).
Since 31aa62ae6d2e111e87c08b4b27a16ead968f0689, OSPFv3 will use direct route
for pointopoint interfaces. Unfortunately, kernel doesn’t support multipath
with a device only route, so there is a ! on the route.
BIRD v2.15 ready.
bird> show route
Table master4:
192.88.99.0/24 unicast [ospf2 14:55:01.553] * I (150/20) [1.9.1.9]
dev wg-main
dev wg-main2
Table master6:
2001:db8:272::/48 unicast [ospf1 14:55:01.553] ! I (150/20) [1.9.1.9]
dev wg-main
dev wg-main2
I am drafting a patch to fix it.
Regards,
Soha
----------------------------------------------
From: Bird-users <[email protected]> On Behalf Of Ilham Maulana
Sent: Monday, March 11, 2024 12:27 PM
To: Ondrej Filip <[email protected]>; Ondrej Zajicek via Bird-users
<[email protected]>
Subject: Re: BIRD 2.15
Hello,
After upgrading to 2.15, OSPFv3 is broken. Previously working on 2.14. No
configuration changes.
This capture taken from router with Bird 2.15 installed.
--------------------------------
OSPF route from router with Bird 2.15. it has ! sign.
birdc show route all 2a05:abcd:abcd:abcd::/128
BIRD 2.15 ready.
Table master6:
2a05:abcd:abcd:abcd::/128 unicast [ospfv3v6 2024-03-11 10:05:40] ! I (150/10)
[1.1.1.1]
dev wg6
dev wg7
Type: OSPF univ
OSPF.metric1: 10
OSPF.router_id: 1.1.1.1
-----------------------------------------------------
OSPF route from router with Bird 2.14, working as expected, with * sign.
birdc show route all 2a05:abcd:abcd:abcd::3/128
BIRD 2.15 ready.
Table master6:
2a05:abcd:abcd:abcd::3/128 unicast [ospfv3v6 2024-03-11 08:23:55] * I (150/10)
[192.168.99.141]
dev wg2
Type: OSPF univ
OSPF.metric1: 10
OSPF.router_id: 192.168.99.141
Any idea, what's going on?
