Re: IP Forwarding / Masquerade

From: Michel Catudal (bbcat_at_netonecom.net)
Date: 10/18/03


Date: 17 Oct 2003 22:23:13 -0500

Sasa Stupar wrote:

> Sh0t2bts wrote:
>
>> Hi All,
>>
>> I have printed some documentation how how to set-up and configure my pc
>> as a gateway for my local LAN,
>>
>> The problem I have is it tells me to configure my network cards using
>> Linuxconf
>> Linuxconf has not been included in the release since RH7.3 and I have
>> just installed RH9 I am sort of stuck at first base.
>>
>> I got the documents from
>> www.jandg-cooper.com/home_networking/gateway.html
>>
>> It says "To set up IP forwarding, I just had to configure it in
>> linuxconf. Under Networking, select Routing and Gateways to get to the
>> dialogue Routes to other networks. In there, select Defaults, and set the
>> Default gateway to 0.0.0.0 and set the Enable routing click-box. See
>> pictures below"
>>
>> This pictures show Linuxconf and a little ticky box to enable routing.
>>
>> it then says this "This enables my Linux server to route packets from
>> other machines on the LAN to the internet, but it doesn't allow all the
>> machines to share one external IP address. (All other settings from the
>> Routes to other networks dialogue are left blank.)"
>>
>>
>> My question is how can I do the above using commend prompt or what app do
>> I use in Gnome?
>>
>> Many Thanks
>>
>> Mark
>>
>>
>
> Consider using Firestarter ( http://firestarter.sourceforge.net ).
> It is very easy to setup a router/firewall machine.

How do you get it to work correctly with two ethernet cards?
It only supports one local network card which make it useless
as a router. I need to connect both computers to the internet,
not just one and I have no interest in buying an external router.

SuSE firewall has no problem with setting different ethernet card.
It doesn't set the routing correctly but that fixable. For firestarter
if you stipulate more than one ethernet card it doesn't work.

With SuSE I was able to setup 2 ethernet cards and my ppp0 connection
on the modem and everything works fine. I would like to move to RedHat
but so far I haven't got the firestarter to work and haven't had time
to look into it. It looks like I'll have to go thru the script and
learn how it works and then fix it.
As I search thru the net it seems that most people use one ethernet
card for the network and one ethernet card for the internet. This is
strange considering that around here it's not even an option and no
one in my town uses anything else than a 56k or slower modem.

Is it it true for big city folks or is it just that the bulk of the
developper think that everybody has a T1 or cable internet connection?

-- 
Howard Dean for America
http://www.deanforamerica.com/site/PageServer
http://www.netonecom.net/~bbcat


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