From owner-freebsd-net@freebsd.org Mon Feb 27 23:37:16 2017 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 1F8C6CF07BB for ; Mon, 27 Feb 2017 23:37:16 +0000 (UTC) (envelope-from fjwcash@gmail.com) Received: from mail-qk0-x230.google.com (mail-qk0-x230.google.com [IPv6:2607:f8b0:400d:c09::230]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id C22B5F41 for ; Mon, 27 Feb 2017 23:37:15 +0000 (UTC) (envelope-from fjwcash@gmail.com) Received: by mail-qk0-x230.google.com with SMTP id n186so46680676qkb.3 for ; Mon, 27 Feb 2017 15:37:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=pbx+aHwXfoubua4B8NPpaW8BRhbKX1HPt22BzHkCg9A=; b=hjoSKuBaA7nXQ6jBZJYLj5caS59wJyyGBeA2QgkXz4VeqOKWpBf7kl4n6VAWWxHzSP wR0Cv3vDhoUH4rxYJHOhBdURBHOD6nAV2kUGboMCKkFEmRzzFUOLvpWCjaNHGq0izlBx qrI96TU91nvgP/rDJrs0HuBN3zHMxvFPmJ9PFcycjM5KCeW3KkQEGt0jaJc9QM0oKOM9 gdq/ZPRfZL5JOGoedMjp/iKWmypPRrWNksNDqLNE5ROVXGmTB5P6izG0qolZbdmeJLdS SLTrxn0X8RMSIHtvMDaUNnk7aCeBxg5VcehDhtMnALHgH5Z4dqdAq8dIsX5QIwaWhI06 ZMEw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=pbx+aHwXfoubua4B8NPpaW8BRhbKX1HPt22BzHkCg9A=; b=L8iZ6jBMUn3ipvsUrzL7GxPiGA2GQiHFF5E23o3oQB8dmZPiIXfsD+ReE3yjhV7JhT zRchDAmiXNEP06mRNTUgfIvut71tB0fZO8wEV9l88JqeYAa/NsQlN4yBHhp3+G/GUpmY btULy1n4ugAB8u4zhu0G8kY3TBPpMJlAHZrmQC7UTTSHymkRcACm00GcY1Nx908Gl+tt sH1ybAWrLWdc9CGIKKNpVHaoOw7k2cFxVj5Cwrpq1riFwyfz8LF7rGsf8EPNyKYHFJp8 yrnBO6xKfX56RUVyRZy7E3+LOxZChPOHvcBY7t8P8tBMG24uGA1OFk4fz9Jipe5Ib7/C F8DA== X-Gm-Message-State: AMke39kck7wah/5cBRCMmYAC6Cxb05x5nNmZ4hiPYTJw6NzTZ+JH5YQYXYFa6Zo9SHBVNgys3sKDezzqUnhkRQ== X-Received: by 10.237.34.59 with SMTP id n56mr6497582qtc.231.1488238634957; Mon, 27 Feb 2017 15:37:14 -0800 (PST) MIME-Version: 1.0 Received: by 10.140.28.202 with HTTP; Mon, 27 Feb 2017 15:37:14 -0800 (PST) In-Reply-To: <20170227231626.GJ6194@mordor.lan> References: <20170227231626.GJ6194@mordor.lan> From: Freddie Cash Date: Mon, 27 Feb 2017 15:37:14 -0800 Message-ID: Subject: Re: VLAN + CARP ? To: Julien Cigar Cc: freebsd-net Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 27 Feb 2017 23:37:16 -0000 On Mon, Feb 27, 2017 at 3:16 PM, Julien Cigar wrote= : > I wondered if it is possible to use CARP with VLAN interfaces? > =E2=80=8BYes, CARP-over-vLAN works well. Used just such a setup at work fo= r a couple years. Would something like this work (on 10.3)..?: > > =3D /etc/rc.conf =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > > vlans_em0=3D"neta netb" > create_args_neta=3D"vlan 101" > create_args_netb=3D"vlan 102" > > ifconfig_em0_neta=3D"inet 192.168.1.253/24" > ifconfig_em0_netb=3D"inet 10.209.1.253/24" > > ifconfig_em0_neta_alias0=3D"inet vhid 3 advskew 10 pass xx alias > 192.168.2.254/32" > ifconfig_em0_netb_alias0=3D"inet vhid 4 advskew 10 pass xx alias > 10.209.1.254/32" > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D > =E2=80=8BThis is the setup we used (snipped for brevity): # em2 is the 3rd NIC port from the top of the quad-port NIC ifconfig_em2=3D"up" vlans_em2=3D"vlan110 vlan2000 vlan1000 vlan1010 vlan1110" create_args_vlan1000=3D"vlan 1000" ifconfig_vlan1000=3D"vhid 9 pass nxsp4ss =E2=80=8B1=E2=80=8B advskew 128 10.1.0.1/16" create_args_vlan2000=3D"vlan 2000" ifconfig_vlan2000=3D"vhid 20 pass nxsp4ss2 advskew 128 12.24.13.97/27" create_args_vlan1010=3D"vlan 1010" ifconfig_vlan1010=3D"vhid 21 pass nxsp4ss =E2=80=8B3 advskew 128 12.24.12.129/26" create_args_vlan1110=3D"vlan 1110" ifconfig_vlan1110=3D"vhid 11 pass nxsp4ss =E2=80=8B4 advskew 128 12.24.10.1/26" =E2=80=8Bem2 had no IPs associated with it, it was just the physical interf= ace that the vlans and carp traffic went over. We also only had a single subnet per vlan, so only a single IP per carp instance on each vlan. But you can do multiples using the alias syntax like you have.=E2=80=8B --=20 Freddie Cash fjwcash@gmail.com