On Fri, Sep 05, 2008 at 02:59:47PM -0700, andrew fresh wrote:
> The problem I am seeing is that if I don't specify a router-id in
> ospfd.conf, then if the highest IP on a peer router changes the automatic
> Router ID, the session fails to start with a "failed to form adjacency with
> <old ID>" error.
I see this from some fallout of a bug I discovered:
/etc/ospfd.conf:
router-id 34.193.28.3
area 0.0.0.0 {
interface em3 {
}
}
int em3 has 4 (inclusive) neighbours:
ID Pri State DeadTime Address Iface Uptime
228.94.64.2 1 FULL/DR 00:00:37 200.89.217.12 em3 1d12h24m
34.193.28.2 1 FULL/BCKUP 00:00:35 200.89.217.2 em3 1d12h24m
200.89.217.37 1 2-WAY/OTHER 00:00:37 200.89.217.11 em3 -
here is "200.89.217.37":
!
router ospf 10
router-id 228.94.64.1
log-adjacency-changes
redistribute connected subnets
redistribute static subnets
passive-interface GigabitEthernet0/0.200
passive-interface GigabitEthernet0/1.3
passive-interface GigabitEthernet0/1.102
passive-interface GigabitEthernet0/1.255
network 200.89.217.8 0.0.0.7 area 0
network 200.89.217.32 0.0.0.7 area 0
network 200.89.219.0 0.0.0.255 area 0
network 228.94.65.0 0.0.0.255 area 0
network 228.94.64.0 0.0.15.255 area 0
network 101.146.142.0 0.0.0.127 area 0
network 101.146.142.128 0.0.0.127 area 0
network 34.193.28.0 0.0.3.255 area 0
default-information originate always
!
200.89.217.37 is now 228.94.64.1 and I get this in the logs (after I
`clear ip ospf proc'):
Nov 19 12:56:33 hadrian ospfd[26460]: nbr_adj_timer: failed to form adjacency
with 200.89.217.37
however if I change another router-id within the mesh, I can hang the
entire OS:
rtfree: 0xd99fd004 not freed (neg refs)
rtfree: 0xd99fd004 not freed (neg refs)
rtfree: 0xd99fd004 not freed (neg refs)
rtfree: 0xd99fd004 not freed (neg refs)
It needs a hard reset.
A limitation of my routes?
13:08 hadrian:~# ospfctl sh f|wc -l
99
13:08 hadrian:~#
>
> Here is a description of how to repeat the problem as well as log messages.
> If there is any more information I should gather, let me know.
You should send-pr.
In fact I will now.
--
020 7729 4797
http://blog.playlouder.com/
