[lug] ethernet duplex options, mysteries

Mr Viggy LittleViggy at alum.manhattan.edu
Fri Aug 2 18:52:17 MDT 2002


Don't feel bad!  We all feel silly at one time or another!

;-)

As for the bridge, do both sides of a bridge communicate to the same 
network?  Wait, I guess they do, don't they.  Otherwise, you would have 
a router...

Vig.

D. Stimits wrote:
> Mr Viggy wrote:
> 
>> Of course you can ping 10.0.0.4 and 10.0.0.5, with no cables attached. 
>> What's happening is that in the TCP/IP stack for each card is the IP 
>> addy for those cards.  The ping command is actually being responded to 
>> from the stack, *not* the network itself.  If you need to ping test 
>> the cards, you're going to need a third machine somewhere else on the 
>> network that you can ping.  You can ping your local machine anytime; 
>> even if it's not connected to the network.  What this proves is that 
>> the TCP/IP stack for that interface is up and running.
> 
> 
> Geez, I feel silly. I had forgotten those were both on the local 
> machine, even if they were assigned to the ethernet.
> 
>>
>> As for having both interfaces on the same network, I'm not sure what 
>> that will acomplish (other than maybe twice as fast network speeds).  
>> I don't think you can remove that default route; your system is 
>> probably seeing that both cards are on the same network, and using the 
>> last card it finds as the default (pure speculation on my part).
> 
> 
> 
> The reason that they are on the same network is because they will soon 
> have their IP bindings removed, and turned into a bridge. The inner 
> device will probably get a non-routable binding for ssh in.
> 
> D. Stimits, stimits AT idcomm.com
> 
>>
>> As for mystery #2, you got me...  All my cards are 100/full...
>>
>> Viggy
>>
>> D. Stimits wrote:
>>
> ...
> 
> 
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