Re: Network Probs (was Re: Firewall issues)

jdow wrote:

> From: "Trey Gruel" <[email protected]>
> 
>>>Okay, this helps. I'm assuming here that the connection requires an
>>>authentication scheme before transferring data. Your ISP kills the
>>>connection after a certain amount of time being down, and redhat happily
>>>redials, but doesn't do the auth process. You can set up ssh or an
> 
> expect
> 
>>>script to refresh the authentication scheme if it goes down.
>>
>>There's no dialing going on.  This is a static ip connection over a T1
>>that is shared by other systems.  When eth0 (outside network) stops
>>responding, the traffic going out eth1 (lan) gets forwarded over the
>>same T1 via another box.  All other outgoing traffic works.
>>
>>I was thinking about trying to use eth2 instead of eth0 in case it was a
>>problem with the card, but according to 'ip link show', eth1 and eth2
>>have the same mac address.  I'm not sure what is going on with that or
>>how it wold affect any network traffic.
> 
> 
> Two cards with the same MAC address is deadly. How many other such
> situations exist on the network? This condition will lead to misdirected
> and lost packets. So if there is a way to change the MAC address of
> those cards do so.
> {^_^}

That's why I've got eth2 disabled.  I don't trust it.. :)

-- 
Trey Gruel
[email protected]
703-713-1640 x320