[rhn-users] A critical Problem wirth NIC

[Paul A. Kennedy]

On Thu, Sep 02, 2004 at 08:51:14AM +0300, Aboobacker (Network Admin.) wrote:
> Dear all,
> I am facing a critical problem, some one help me.
> I installed Red hat EL AS 3.0 and I installed oracle 9i on it as a
> database server. Now both are working well. Actually problem is I
> assigned ip address for the server like 172.16.1.7 and 14. it have two
> NIC's. when the users are unfortunately change their machine ip address
> as 7 or 14 ( because every one have static ip only). The server
> connectivity of 7 or 14 will be suddenly terminating. How can I solve
> this problem? I am waiting for reply. It's very urgent. 
> Thanks and regards,
> Aboobacker

If I understand your situation, you have a bunch of machines with static IP
addresses, and one of your users on your network is picking one of the
addresses of your server's IP address.

You might try using arpwatch to see whether you can catch the MAC address of
the conflicting machine.  If you can gain access to the switch, you might be
able to track it there as well.

Can you prevent your users from changing their IP addresses?  Set up dhcp for
the user machines? 

Paul