RE: [PLUG] Bridging two networks using linux

["Molnar, Bradley" <brmolnar@exchange.ursinus.edu>]

thanks, i'll try this in an hour or so.

One of the problems with giving the desktop a wireless card (totally aside
from the cost b/c I think there might be an extra one if I pull it from
somewhere else and replace it with an ISA version).  However, this wouldn't
fully solve the problem.

An unfortunate side effect of living in a pre-depression era house (other
than lead pipes) is that the various wall materials do not allow for the
wireless signals to pass properly.  There is something in my room that only
allows the one half of the room access to the wireless connection (it comes
from the floor below), and this does not include the half where the desk
(and the computer) are.

Yes I know, completly messed up.

Just so I know (if I don't figure it out on my own) would I have to make my
desktop a different ip address range, or will the dhcp pass properly
through?  And if so, would 'Laptop A' be the router?

thanks
-brad

-----Original Message-----
From: Jeyes, David (371)
To: 'plug@lists.phillylinux.org'
Sent: 6/2/03 13:52
Subject: RE: [PLUG] Bridging two networks using linux

> Brad wrote: 
> 
> 
> Back in the day, the RG-1000 WAS the dsl router as well (the 
> family computer 
> has a wireless card which will be removed in the next couple 
> of weeks or 
> so). 
> 
> The Netgear is NOT a wireless version - it wasn't needed, we 
> already had the 
> RG-1000.  It is just a cable/dsl router with a 4-port 
> ethernet hub.  The 
> RG-1000 is simply a link between the wired and wireless 
> networks (well, 
> there is usually only one machine on the wired network).  The 
> netgear is 
> also the dhcp server (although it would be somewhat trivial 
> to set this up 
> on another machine). 

So the netgear is for the wireless network and the RG-1000 is their WAP?
That doesn't sound unreasonable if they didn't get a box that could do
both. You couldn't either plug into the wired network or put a wireless
card in your desktop?

If you want to do a simple solution without it being bridging, then you
can simply allow ip forwarding and your laptop will simply pass on the
packets without masqing them.

1. alter the parameter in /etc/network that says ipforward to true. 
2. make sure you give your desktop a gateway and dns parameter. 

Note: this isn't a true bridge because the laptop will still have an ip
address instead of being completely transparent, but there's no reason
that it should matter AFAIK.

Hope this helps, 
dj 
  

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