network problem

[ted leslie]

weird,

you can rule out the router, if box x and box z can talk to each other on that IP,
if on same subnet, as it will not gateway via the router.
never seen a switch arp cache like that.

possible some other box on network is using ip?
other experiments might be to cross-over-ethernet-cable the two boxes, 
see if the talk to each other on same subnet, and one with that IP of issue.
(or make sure only those two boxes are on the switch).

you say it only "routes properly", that would imply since your "routing",
that the other boxes are not on the same subnet?, that it isnt just placing the
packet on the wire (i.e. no routing).

-tl


On Wed, 08 Apr 2009 01:16:38 -0400
Jamon Camisso <jamon.camisso-H217xnMUJC0sA/PxXw9srA at public.gmane.org> wrote:

> So I've run into a really strange network problem. Box X had IP Y. IP Y 
> was moved to box Z. Box X and Z are behind the same switch, and use the 
> same gateway. The switch is a 3Com 4400.
> 
> The IP is accessible by any host behind the switch. But it only routes 
> properly when on box X. Box Z, no luck. I've tested iptables on box Z, 
> and disabled it just to be sure, no luck. Box Z also works with all the 
> other IPs it has assigned to it, that are on the same subnet as IP Y.
> 
> I'm thinking it is an arp cache on the switch or router, but don't have 
> access to either to check. You can see where I'm going, how can I get 
> box Z to be accessible? Arp?
> 
> Jamon
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-- 
ted leslie <tleslie-RBVUpeUoHUc at public.gmane.org>
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