Date: Mon, 11 Dec 2000 23:32:47 -0500 From: brownicm@prokyon.com To: <freebsd-questions@FreeBSD.ORG>, "Mike Gruver" <mgruver@carolina.rr.com> Subject: Re: How to use simple firewall with DHCP? Message-ID: <200012120439.XAA18371@mail6.lig.bellsouth.net> In-Reply-To: <000801c063e9$c20967e0$0200a8c0@digitalavalanche.com>
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Use the values from /var/db/dhclient.leases. My IP number never changes, although I was never promised a static number. I have the same setup you have except that it's a DSL line rather than cable (I assume from your email addr). I also use 'natd_flags="-dynamic"' in /etc/rc.conf, although I'm not sure just what would happen if the IP number _was_ changed. Surprise!! I just checked mine and it _has_ changed (after six months)! With no apparent ill-effects. Double-check the netmask being assigned, it'll be non- standard as the provider usually has some sort of subnetting scheme giong on. Just use the IP number you're assigned with a final 0 (xxx.xxx.xxx.0) as the network number. This stuff scared me at first, but now it's a piece of cake. > I have a dual-homed host with non-routables on the inside domain (192.168.0.x) and DHCP on the outside with the ISP. The question is: the example rc.firewall file explains to setup your interface, ip and subnet for both the external and internal interfaces. Sounds great, except I am using DHCP on the external. Does anyone know how to specify this in the rc.firewall file for the onet, omask, and oip identifiers? > > Any help is appreciated. > > Thanks, > > mgruver@carolina.rr.com Where in Carolina? I'm in Greensboro... > ------------------------------------------- Chris Browning brownicm@prokyon.com ------------------------------------------- -------------------------- Chris Browning brownicm@prokyon.com ------------------------ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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