network problem: internet sharing

[David A. Bandel]

On Tue, 22 Jul 2003 14:41:47 -0500
Alma J Wetzker <almaw at ieee.org> wrote:

[snip]

> 
> I am not sure what is going on.  Just to clarify some basics; each
> card in a machine needs its own ip address, ideally, each card should
> be on its own subnet.  (that may not be a requirement but it sure
> makes things easier to administer.  It also sounds like what you
> have.)
> 
> I am not certain, but the iptables script that David B. sent should do
> 
> the routing.  I can't put my finger on it exactly but it sounds to me
> as though the linux box is still not working correctly.  If the XP box
> can 

his linux box is working perfectly.  It can ping the XP box.

> be pinged it means the protocol is setup correctly (if not compleatly)
> 
> and loaded.  Ping seems to work from the XP box (it doesn't error out)
> 
> but gets lost somewhere.  I am not convinced it is getting lost in the
> 
> XP layers.  That leads me back to the linux box not behaving like you 
> want it to.

XP probably sending out a non-existant (configured, but non-existant or
not connected) interface.

> 
> My own experience is that I could never get the linux boxes to route 
> correctly when I tried what you are doing.  I found it easier for my 
> peace of mind and blood pressure to invest in a router (SMC) and share
> 
> the connection that way.  Linux or windows is just a dhcp client and 
> only the router cares.  YMMV

I have more than a few _dozen_ linux boxen acting as routers (some with
fairly long routing tables and multiple interfaces), connected to
wireless networks, frame relays, E-1s, ethernet networks, and more. 
It's the one reliable part of the whole mess.  I can trust the Linux
boxen to just work (unless I fat-fingered a key, but the linux box did
exactly what I told it to do).  Now Windoze on the other hand ... but
I'd need reams of paper to give you examples of how it's fsck'd, and
that's just getting packets to come and go, not even route.

Ciao,

David A. Bandel
-- 
Focus on the dream, not the competition.
		Nemesis Racing Team motto
GPG key autoresponder:  mailto:david_key at pananix.com
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