From owner-freebsd-stable Sat Feb 13 04:31:33 1999 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id EAA02759 for freebsd-stable-outgoing; Sat, 13 Feb 1999 04:31:33 -0800 (PST) (envelope-from owner-freebsd-stable@FreeBSD.ORG) Received: from merlin.vk8ah.org (ppp82.accessnt.com.au [203.39.3.82]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id EAA02754; Sat, 13 Feb 1999 04:31:26 -0800 (PST) (envelope-from ahodges@ozemail.com.au) Received: from scooby (scooby.vk8ah.org [10.0.3.4]) by merlin.vk8ah.org (8.8.8/8.8.5) with SMTP id WAA00339; Sat, 13 Feb 1999 22:05:54 +0930 (CST) Message-ID: <001d01be574c$e992de00$0403000a@scooby.vk8ah.org> From: "Andrew Hodges" To: , Subject: Using Interface Aliases on FreeBSD with ipfw Date: Sat, 13 Feb 1999 22:02:23 +0930 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001A_01BE579C.891DD160" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3155.0 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3155.0 Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG This is a multi-part message in MIME format. ------=_NextPart_000_001A_01BE579C.891DD160 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi, for purely availability reasons I am using on old DECpc 433W as a = filtering Firewall with ipfw on 2.2.8. This sytem has only one ethernet interface and I have been using = in with ppp through the serial port. I am putting ISDN in place and the TA I have has an = ethernet interface.=20 I am wondering if it would be feasible to use the same interface le0 = with 2 ip addresses on different subnets using something like:=20 ifconfig_le0_alias0=3D"inet 139.100.1.1 netmask 255.255.255.0" ifconfig_le0_alias1=3D"inet 192.168.2.1 netmask 255.255.255.0" and use rc.firewall with the same interface and natd. Is this possible? Are there any issues? Thanks Andrew ahodges@ozemail.com.au ------=_NextPart_000_001A_01BE579C.891DD160 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi,

for purely availability reasons I am = using on=20 old DECpc 433W as a filtering Firewall with ipfw on

2.2.8. This sytem has only one ethernet interface = and I have=20 been using in with ppp through the

serial port. I am putting ISDN in place and the TA I = have has=20 an ethernet interface.

I am wondering if it would be feasible to use the = same=20 interface le0 with 2 ip addresses on different

subnets using something like:

ifconfig_le0_alias0=3D"inet 139.100.1.1 = netmask=20 255.255.255.0"
ifconfig_le0_alias1=3D"inet = 192.168.2.1 netmask=20 255.255.255.0"

and use rc.firewall with the same interface and=20 natd.

Is this possible? Are there any issues?

Thanks

Andrew

ahodges@ozemail.com.au<= /DIV>

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