----- Original Message -----
From: Hal Burgiss <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, July 16, 2000 9:31 AM
Subject: Re: Installing cable, need to know about where to put the modem.
: On Sun, Jul 16, 2000 at 05:03:38PM +0200, Zoki wrote:
: > What I would like to know is if I can plug the Motorola modem
: > directly into my hub and setup ipchains to filter eth0 <-> [external
: > address].
:
: [Hal points out why Zoki does not waht to do this]
:
: What you probably want to do is put 2 NICs in the gateway box. Run
: ipchains and ipmasquerading from there. NIC 1 goes to WAN, NIC 2 goes
: to hub. Other LAN boxes, use NIC 2's IP as their gateway. This works
: quite well.
:
: > Another question concerns the external device. Until know I have
: > been using a dial-up account which means that my external device was
: > ppp0. What will be the external device with the cable modem as I
: > won't have a fixed IP (it'll change once in a while)?
I strongly second the advice of Hal and others, your plan will not work. I
am in your exact situation and I have Masqueraided using a Red Hat box
(i.e., what Hal said) for a while but I'm switching to a 486/66 running LRP
(www.linuxrouter.org) for these reasons:
+ I'd like to run services on the Red Hat box that may not be totally secure
+ This LRP thing boots all from a floppy; once you have configured your
firewall/NAT-gateway to your liking, you can flip the write protection and
have a immutable setup
+ The distro is made for this exact thing so it's easy to set up for this
purpose
+ And LRP includes support for stuff like DHCP, firewalls, etc.
+ Finally, it's one way to justify that bad investment in a 486/66 a couple
years ago :)
-Alan
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