From: Jim (nhatquang@thiennam.org)
Date: Wed May 04 2005 - 02:32:08 GMT-3
how is the config? it looks like a router-id than an ip address.
----- Original Message -----
From: <gladston@br.ibm.com>
To: <ccielab@groupstudy.com>
Sent: Wednesday, May 04, 2005 3:55 AM
Subject: 0.0.0.1 on OSPF hello
> Do you know what OSPF means with 0.0.0.1?
>
> It is a non-broadcast net, R2 is sending hello to R5. Debug ip ospf hello
> and debug ip packet det are enabled.
>
> Send hello to 0.0.0.1
>
> Debug ip packet confirms that the destination IP of the hello is unicast
> address. Area is 0.
>
>
> r2#
> *Mar 1 03:02:11.716: OSPF: Send hello to 0.0.0.1 area 0 on Serial0/0.257
> from 172.16.200.2
> *Mar 1 03:02:11.716: IP: s=172.16.200.2 (local), d=172.16.200.7
> (Serial0/0.257), len 124, sending, proto=89
>
>
> When the network is broadcast, it says "Send hello to 224.0.0.5" which
> really is the destination IP.
> But when it is non-broadcast, it seems there is no sense on "0.0.0.1".
> (well, I must say, I could not find the sense, hope feedback clarify it).
>
> r2#sh deb con
> *Mar 1 03:06:19.834: OSPF: Send hello to 224.0.0.5 area 11 on Ethernet0/0
> from 172.16.26.2
> *Mar 1 03:06:19.834: OSPF: Send hello to 224.0.0.5 area 11 on Ethernet0/1
> from 172.16.29.2
>
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