Date: Fri, 10 Oct 2003 23:29:08 +0930 From: Ian Moore <imoore@picknowl.com.au> To: "freebsd-questions" <freebsd-questions@FreeBSD.ORG> Subject: ADSL modem & ip addresses Message-ID: <200310102329.08549.imoore@picknowl.com.au>
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Hi, I'm organising an ADSL connection and I'm a bit confused about our options. We need to provide web, ssh and mail access to our network for users from home across the Internet with an ADSL connection. I figure the best way to do this is to setup a new machine to act as a firewall and run a web server & sendmail on this box. (or I have seen something about using socket to divert these services to our existing server which has a private address). The firewall would have a NIC with a private IP address to connect to the rest of our network. What's the best way then to connect it to the ADSL line? Do we have a second NIC in the firewall machine with a real IP address connected to an ADSL modem and use ppp -natd on that interface? Does that mean we'd need 2 static IP addresses - one for the firewall & one for the modem? (We really don't want to pay for 2 addresses) Or can we use a USB connection instead - are there FBSD drivers for ADSL modems? I can't see any in the supported hardware list. Or do we use a combined modem/router device to do the nat & firewalling and have it redirect mail, web & ssh access to our main server? (is that possible or do such devices not allow access into the network from the 'net?) Cheers, Ian
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