OSPF authentication problem between Cisco and Bird

[Jérémie Vandeville]

Hi everyone

I apologise in advance, english is not my native language...

For study purpose, I'm trying to setup OSPFv2 between Bird 1.6.6 and a
Cisco router.

It seems there is a problem with the auth-type code send by Bird in the
ospf hello packets. This problem prevent the devices to become neighbours.

Here is the configuration of the Cisco router :

router ospf 1
 no capability lls
 network 192.168.42.0 0.0.0.255 area 0.0.0.0

interface Vlan10
 description Management
 ip address dhcp
 ip ospf authentication
 ip ospf authentication-key azerty
 ip ospf dead-interval 6
 ip ospf hello-interval 2

And the configuration of Bird :

router id 1.1.1.1;

protocol device {
}

protocol kernel {
    metric 64;
    import all;
    export all;
}

protocol ospf test {
    instance id 42;
    area 0.0.0.0 {
        interface "eth*" {
            hello 2;
            dead count 3;
            authentication simple;
            password "azerty";
        };
    };
    export all;
}

If I launch the debug command on the Cisco, I see this :

Mar 23 18:09:59: OSPF-1 PAK  : Vl10: OUT: 192.168.42.43->224.0.0.5: ver:2
type:1 len:44 rid:192.168.42.43 area:0.0.0.0 chksum:2720 auth:1
Mar 23 18:09:59: OSPF-1 PAK  : Vl10:  IN: 192.168.42.73->224.0.0.5: ver:2
type:1 len:52 rid:1.1.1.1 area:0.0.0.0 chksum:F0CE auth:10753

Bird send the field auth-type with the value 10753.

Tcpdump show the same value :

17:13:38.012494 IP (tos 0xc0, ttl 1, id 21850, offset 0, flags [none],
proto OSPF (89), length 64)
    192.168.42.43 > 224.0.0.5: OSPFv2, Hello, length 44
    Router-ID 192.168.42.43, Backbone Area, Authentication Type: simple (1)
    Simple text password: azerty

17:13:38.012792 IP (tos 0xc0, ttl 1, id 7301, offset 0, flags [none], proto
OSPF (89), length 72)
    192.168.42.73 > 224.0.0.5: OSPFv2, Hello, length 52
    Router-ID 1.1.1.1, Backbone Area, Authentication Type: unknown (10753)


Can you tell me what I'm doing wrong ? If I try the "none" authentication,
Bird send the code 10752 and the problem is the same...

Thx !
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