Re: Local network hosts unreachable

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On Wed, 27 Apr 2005, Marc Shapiro wrote:
> (running Sarge/Testing).  The two boxes are connected
> by a 4 port switch.  For the past few days I have been
> unable to communicate between the two boxes.
> 
> Neither machine can ping the other (100% packet loss).
>  Traceroute is also unable to find a path from either
> machine to the other.  Ssh fails with an error saying
> 'no route to host.'  This last error makes me feel
> that something has been messed up with my kernel
> routing tables, but they look OK to me and I have not
> been able to correct the problem by making changes
> there.

1.) Does your switch work well? Connect the boxes directly with a
cross-link cable (1-3, 2-6). Do they work?
2.) Try to connect an another box to the switch and ping the two linux
boxes.
3.) Do you have any filtering? (check iptables)

Regards,
Levente


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