Network problem

[Paul Howarth]

On Wed, 2005-02-23 at 02:11 +0100, Mats Erlandson wrote:
> What is so strange, is that the computer can talk to all local addresses 
> except the switch (192.168.0.1) and two other computers on the local 
> network can talk to it, all obviously through the switch both ways.  
> This shows that the cabling is OK, and that the problem is probably in 
> the routing on the computer (not allowing it to connect directly to the 
> switch) or in the switch, not accepting communication from the 
> computer.  The switch routes properly for the other computers on the 
> network and can be managed from either one (tested) but not from the 
> problem child.  If I change the configuration on the computer to use 
> DHCP (and rebooting) the computer does not get (receive/accept) the DHCP 
> configuration and is thus 'dead', i.e. no communication to nor from any 
> computer.  Therefore, until the communication to/from the switch is OK I 
> am using a static address.  To eliminate hardware faults possible in the 
> ethernet port on the motherboard (eth0) I installed a network card, 
> tested to perform OK in another computer, and disabled the motherboard 
> port using the BIOS. With only an expansion ethernet card active in the 
> computer I made the same tests with the same results.  This seems to 
> eliminate network card problem in the computer.  My current setup is, as 
> per the first paragraph above, motherboard ethernet port only with 
> static address.  Still no joy.  I am at a loss.

Desperate times call for desperate measures. Have you tried a different
cable and a different switch port?

Paul.
-- 
Paul Howarth <paul at city-fan.org>