Hello,
I just set up OSPF to talk within two OpenBSD-Boxes (Pinky and Brain, do
you remember? :-). On both machines I configured a carp interface to
provide a default gateway for my local VLANs. The configuration was very
easy and intuitive. OSPF is redistributing routes only for
carp-interfaces which are in master-state, this is exact the way I was
looking for.
But if I take down the actual carp-master interface (195.140.212.1/24),
the (until now) backup interface take over the master-state, ospfd is
redistributing the changed routing information, I can see it in the
output of "ospfctl sh rib".
But if I take a look at "opsfctl sh fib" there is still the local link
and not the new route via the ospf-neighbor, as I expected.
"fib-update" should be on by default, but I tried to write it explicitly
into the configuration file, but it's not getting better.
This is my configuration on both sides (only the router-id is adapted):
# global configuration
router-id 194.9.86.1
fib-update yes
# route redistribution
redistribute connected
redistribute static
# areas
area 0.0.0.0 {
interface lo1
interface em1 {
metric 10
auth-type crypt
auth-md-keyid 1
auth-md 1 "foobar"
}
}
The correct output of the routing information:
# ospfctl sh rib
Destination Nexthop Path Type Type Cost
Uptime
194.9.86.2 10.0.0.2 Intra-Area Router 10
00:22:17
10.0.0.0/30 10.0.0.1 Intra-Area Network 10
00:22:24
194.9.86.2/32 10.0.0.2 Intra-Area Network 10
00:22:17
195.140.212.0/24 10.0.0.2 Type 1 ext Network 110
00:21:45
195.140.212.3/32 10.0.0.2 Type 1 ext Network 110
00:22:17
195.140.213.3/32 10.0.0.2 Type 1 ext Network 110
00:22:17
And the output of the forwarding database with the unexpected nexthop of
the local interface instead of the opsf-neighbor:
# ospfctl sh fib
flags: * = valid, O = OSPF, C = Connected, S = Static
Flags Destination Nexthop
*C 10.0.0.0/30 link#2
*S 127.0.0.0/8 127.0.0.1
*C 127.0.0.1/8 link#0
* 127.0.0.1/32 127.0.0.1
*C 192.168.13.0/24 link#1
* 194.9.86.1/32 194.9.86.1
*O 194.9.86.2/32 10.0.0.2
C 195.140.212.0/24 link#22
*C 195.140.212.2/32 link#16
*O 195.140.212.3/32 10.0.0.2
*C 195.140.213.0/24 link#19
*C 195.140.213.2/32 link#17
*O 195.140.213.3/32 10.0.0.2
*C 195.225.134.4/30 link#3
*S 224.0.0.0/4 127.0.0.1
Any hints?
Thanks,
Falk
