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Message-Id: <20100906.125748.189711276.davem@davemloft.net>
Date:	Mon, 06 Sep 2010 12:57:48 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	david-b@...bell.net
Cc:	netdev@...r.kernel.org, linux@...nbow-software.org
Subject: Re: PATCH: usbnet: doc updates

From: David Brownell <david-b@...bell.net>
Date: Mon, 6 Sep 2010 11:28:48 -0700 (PDT)

> You wouldn't know of a Linux distro that comes
> with a "this box will be a NAT firewall" setup
> option?  Ubuntu only has that aftermarket AFAICT.

Just do a bare debian install and put something like the file below in
your /etc/network/interfaces, it's what I use.

eth0 is outgoing, eth1 is internal network.  Change eth0 to a dhcp
config if that is what you use.

I also use dnsmasq as the dhcp server for the internal network.

IP addresses variable'ized to protect the innocent :-)

--------------------
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
allow-hotplug eth0
iface eth0 inet static
      address $(INTERNET_IP)
      netmask $(INTERNET_NETMASK)
      network $(INTERNET_NETWORK)
      broadcast $(INTERNET_BROADCAST)
      gateway $(INTERNET_GATEWAY)
      dns-nameservers $(INTERNET_DNS_1) $(INTERNET_DNS_2)

allow-hotplug eth1
iface eth1 inet static
      address 11.0.0.1
      netmask 255.0.0.0
      network 11.0.0.0
      broadcast 11.255.255.255
      up iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
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