Re: [MLUG] IP forwarding

["yoda" <EMAIL:PROTECTED>]

Make sure that rc.firewall is being called from some file in the rc.d
directory. I think most distros look for it by default, but i'm not sure.
Try:

grep rc.firewall /etc/rc.d/*

(it will look for appearances of "rc.firewall" in the other scripts in
rc.d/. Hopefully, one will be calling it)

192.168.1.0/24 refers to all IP addresses between 192.168.1.0 and
192.168.1.255, but 192.168.1.255 is the broadcast address, and 192.168.10.0
is another reserved address (I think), so give the internal interface
(connected to your LAN) of the router machine something like 192.168.1.1 and
the windows machine(s) 192.168.1.2 on up.

As far as DNS goes, only give the windows box the IP of the linux box if it
is a DNS server, otherwise, give it the same DNS you gave the linux box.
Masquerading will forward the requests.

Sorry to skip the ipchains.o module question, but I can't really answer it.
I've never used it as a module.


-----Original Message-----
From: Borders-Wing, Heath Justin (UMC-Student) <EMAIL:PROTECTED>
To: EMAIL:PROTECTED <EMAIL:PROTECTED>
Date: Thursday, September 06, 2001 6:12 PM
Subject: RE: [MLUG] IP forwarding


>Thanks for the help, however, I put that file into my computer as
>/etc/rc.d/rc.firewall, and I enabled the options that I thought I should
>enable, and it still isn't working.  One problem that I saw was that I
don't
>think that ipchains is installed on my computer.  I believe that its
>supposed to be in the /sbin directory.  However, it isn't there.  I found
>what I think is the gzipped object file:
>/lib/modules/2.4.3-20mdk/kernel/net/ipv4/netfilter/ipchains.o.gz
>
>So, I thought, ok, I'll just gunzip it and insmod it.  Well, I got it
>gunzipped just fine, but when I tried to insmod it, I dont think that I was
>successful.  I typed, "insmod -v ipchains.o" and it said, "using ipchains.o
>\n Symbol version prefix '' ".  So I tried it again, and it said the same
>thing plus, "insmod: a module name ipchains already exists"  So I guess I
>got it into the kernel correctly, but how to I use it?  Furthermore, will I
>have to insmod this file every time?  Can I put it onto some file in the
>rc.d directory?
>
>As far as the other computers that are going to be on the network go, at
the
>bottom of the rc.firewall file, it calls ipchains with the IPs of the
>machines that it should forward packets from. I gave my windows machine
that
>IP and I gave it the gateway and DNS of the IP of eth1 (the ethernet
>connected to my LAN, not the one connected to my cable modem).  Was that
the
>right thing to do?  Do I need to setup netscape and IE somehow so that they
>can handle this?
>
>Thanks, and sorry for being dumb.
>
>Heath
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