From owner-freebsd-questions@FreeBSD.ORG Sun Jan 25 15:16:19 2015 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 0C9D4FAB for ; Sun, 25 Jan 2015 15:16:19 +0000 (UTC) Received: from homiemail-a26.g.dreamhost.com (sub4.mail.dreamhost.com [69.163.253.135]) by mx1.freebsd.org (Postfix) with ESMTP id E155CF3C for ; Sun, 25 Jan 2015 15:16:18 +0000 (UTC) Received: from homiemail-a26.g.dreamhost.com (localhost [127.0.0.1]) by homiemail-a26.g.dreamhost.com (Postfix) with ESMTP id B3F70B8058; Sun, 25 Jan 2015 07:16:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=doomgeek.com; h=subject :mime-version:content-type:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; s= doomgeek.com; bh=MqiusSQXJXYUH84JusWDDsj5pmY=; b=ED2sDODoemscUHx V/Acaqq5p8OAH7B6/FuGvX5I/uXRbjG7WQsYUwgH8F7TPu8XDPFBLOU/G/zNj560 xUbITy4OaXfQFypYOLGsOVsRR4ink3DMKZ1VksiGJlc5pgiWVJNbKv/0fiZ/SZ2O tr8NeJ5FnCPx/X7MfP6FrjGJ1ej8= Received: from [10.0.66.52] (c-73-20-92-222.hsd1.ut.comcast.net [73.20.92.222]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: geek@doomgeek.com) by homiemail-a26.g.dreamhost.com (Postfix) with ESMTPSA id 7D24DB8057; Sun, 25 Jan 2015 07:16:12 -0800 (PST) Subject: Re: real IP and rfc1918 IP on the same machine - how? Mime-Version: 1.0 (Mac OS X Mail 8.1 \(1993\)) Content-Type: text/plain; charset=utf-8 From: Matthew Hardcastle In-Reply-To: <20150125141518.GA23664@potato.growveg.org> Date: Sun, 25 Jan 2015 08:16:11 -0700 Content-Transfer-Encoding: quoted-printable Message-Id: References: <20150125141518.GA23664@potato.growveg.org> To: John X-Mailer: Apple Mail (2.1993) Cc: freebsd-questions@freebsd.org X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 25 Jan 2015 15:16:19 -0000 > On Jan 25, 2015, at 7:15 AM, John = wrote: >=20 > hello freebsd-questions, >=20 > I have a workstation with two NICs - one wired (real IP address on a=20= > /28) and one wireless, which I want to configure to use the protected=20= > wireless LAN on 192.168.100.0/24. I want the internet to route through=20= > real IP address, and I want access to the wireless LAN. I don't want = to=20 > route out to the internet through the wireless LAN, I just need to be=20= > able to contact the machines within it. The wireless LAN itself has = its=20 > own gateway, which is not this machine but a wifi access point. >=20 > How can I configure the ath0 interface so it sees the wireless LAN but=20= > doesn't break routing to the outside world on this machine? Both=20 > interfaces will have static IPs. I have tried statically assigning = ath0=20 > (wireless interface) to 192.168.100.100 255.255.255.0 , em0 interface = to=20 > [real IP] and default gateway to the real IP of the gateway, but once = I=20 > bring the interfaces up I cannot access the real IP of the default=20 > gateway. >=20 > can anyone help? >=20 > thanks, >=20 > --=20 > John=20 Hi John, The setup you=E2=80=99re describing is pretty standard and should = =E2=80=9Cjust work=E2=80=9D when configured correctly. It sounds like = you may have misconfigured one of your interfaces. The output of = `ifconfig`, `netstat -rn`, and `grep ^ifconfig /etc/rc.conf` would be = helpful in diagnosing your issue. Also, I noticed you say your wired interface is a /28 but then state = it=E2=80=99s configured as a /24. Perhaps this is your issue? Matt=