ospf interoperability problems with cisco and other errors

[Csaba Szép]

One more info from cisco (without alias adressess and no other neighbor):

Router#sh ip ospf database

            OSPF Router with ID (3.0.0.1) (Process ID 1)

                Router Link States (Area 0.0.0.0)

Link ID         ADV Router      Age         Seq#       Checksum Link count
1.0.0.2         1.0.0.2         1141        0x8000001F 0x003CE2 1
3.0.0.1         3.0.0.1         951         0x80000011 0x00A96B 1

                Net Link States (Area 0.0.0.0)

Link ID         ADV Router      Age         Seq#       Checksum
1.0.0.1         3.0.0.1         951         0x80000007 0x00A185

                Type-5 AS External Link States

Link ID         ADV Router      Age         Seq#       Checksum Tag
0.0.0.0         3.0.0.1         691         0x80000009 0x000A9C 1
192.0.2.0       1.0.0.2         1145        0x80000001 0x000DCA 0


2009/10/3 Ondrej Zajicek <santiago at crfreenet.org>:
> On Sat, Oct 03, 2009 at 07:39:55PM +0200, Csaba Szép wrote:
>> Hi All!
>
> Hello
>
>> First, the HELLO packet ignored with "Bad OSPF hello packet from
>> 1.0.0.1 received: options mismatch (0x12)." if i use the cisco default
>> ospf configuration.
>>
>> With "ip ospf lls disable" option everything is ok.
>
> This is probably inappropriate options handling in BIRD, we will fix
> it.
>
>> Second, i advertise some alias IP from the pc to the cisco router, but
>> if i remove the alias address from the interface some OSPF routes
>> still present in the cisco router.
>
> So i suppose the problem is just the route 192.0.2.0/24 ?
> I am not sure where it comes from. Could you send me output of command
> 'show interfaces' and  'show ospf state' on BIRD?
>
> --
> Elen sila lumenn' omentielvo
>
> Ondrej 'SanTiago' Zajicek (email: santiago at crfreenet.org)
> OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net)
> "To err is human -- to blame it on a computer is even more so."
>
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