From owner-freebsd-net@freebsd.org Tue Feb 14 15:59:31 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 9A7A2CDF712 for ; Tue, 14 Feb 2017 15:59:31 +0000 (UTC) (envelope-from julien@perdition.city) Received: from relay-b01.edpnet.be (relay-b01.edpnet.be [212.71.1.221]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "edpnet.email", Issuer "Go Daddy Secure Certificate Authority - G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 34327179E for ; Tue, 14 Feb 2017 15:59:30 +0000 (UTC) (envelope-from julien@perdition.city) X-ASG-Debug-ID: 1487086884-0a7ff54d952bea50001-QdxwpM Received: from mordor.lan ([213.219.148.14]) by relay-b01.edpnet.be with ESMTP id XF5LjYn4Jp27c2JU (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 14 Feb 2017 16:41:25 +0100 (CET) X-Barracuda-Envelope-From: julien@perdition.city X-Barracuda-Effective-Source-IP: UNKNOWN[213.219.148.14] X-Barracuda-Apparent-Source-IP: 213.219.148.14 Date: Tue, 14 Feb 2017 16:41:24 +0100 From: Julien Cigar To: freebsd-net@freebsd.org Subject: carp and subnets Message-ID: <20170214154123.GE6194@mordor.lan> X-ASG-Orig-Subj: carp and subnets MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="tVmo9FyGdCe4F4YN" Content-Disposition: inline User-Agent: Mutt/1.7.1 (2016-10-04) X-Barracuda-Connect: UNKNOWN[213.219.148.14] X-Barracuda-Start-Time: 1487086884 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://212.71.1.221:443/cgi-mod/mark.cgi X-Barracuda-Scan-Msg-Size: 1700 X-Virus-Scanned: by bsmtpd at edpnet.be X-Barracuda-BRTS-Status: 1 X-Barracuda-Bayes: INNOCENT GLOBAL 0.5000 1.0000 0.0000 X-Barracuda-Spam-Score: 0.50 X-Barracuda-Spam-Status: No, SCORE=0.50 using global scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=6.0 tests=BSF_SC0_MV0713 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.36508 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.50 BSF_SC0_MV0713 Custom rule MV0713 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: Tue, 14 Feb 2017 15:59:31 -0000 --tVmo9FyGdCe4F4YN Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hello, I have a redundant router/firewall with CARP and PF/PFSync with the following configuration (simplified for example): on FW1 (MASTER): ifconfig_em3=3D"inet 1.2.208.89 netmask 255.255.255.224 -tso" ifconfig_em3_alias0=3D"vhid 53 advskew 0 pass xx alias 1.2.208.90/32" on FW2 (BACKUP): ifconfig_em3=3D"inet 1.2.208.91 netmask 255.255.255.224 -tso" ifconfig_em3_alias0=3D"vhid 53 advskew 100 pass xx alias 1.2.208.90/32" on both machines I have something like this in my /etc/pf.conf: net_local=3D"10.209.1.0/24" net_prod=3D"192.168.10.0/24" if_wan=3D"em3"=20 CARPvhid53=3D"1.2.208.90" nat on $if_wan from { $net_local, $net_prod } to any -> $CARPvhid53 it works great but I have a couple of questions: - is it possible to use differents subnets for the "real" ips and the CARP vip ? in other words: I only have three public IPs and I'd like to reuse two of them. I wondered of something like this would work: on FW1 (MASTER): ifconfig_em3=3D"inet 192.168.88.1 netmask 255.255.255.0 -tso" ifconfig_em3_alias0=3D"vhid 53 advskew 0 pass xx alias 1.2.208.90/32" on FW2 (BACKUP): ifconfig_em3=3D"inet 192.168.88.2 netmask 255.255.255.0 -tso" ifconfig_em3_alias0=3D"vhid 53 advskew 100 pass xx alias 1.2.208.90/32" (assuming that the switch is configured properly) - as the state table is synced between FW1 and FW2, is it possible to=20 do some load-balancing on the outgoing address? Thanks! Julien --=20 Julien Cigar Belgian Biodiversity Platform (http://www.biodiversity.be) PGP fingerprint: EEF9 F697 4B68 D275 7B11 6A25 B2BB 3710 A204 23C0 No trees were killed in the creation of this message. 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