From owner-freebsd-stable@FreeBSD.ORG Tue Jun 12 13:05:40 2012 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 817291065670 for ; Tue, 12 Jun 2012 13:05:40 +0000 (UTC) (envelope-from adams-freebsd@ateamsystems.com) Received: from fss.sandiego.ateamservers.com (fss.sandiego.ateamservers.com [69.55.229.149]) by mx1.freebsd.org (Postfix) with ESMTP id 67B608FC08 for ; Tue, 12 Jun 2012 13:05:40 +0000 (UTC) Received: from [192.168.15.220] (unknown [118.175.84.92]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by fss.sandiego.ateamservers.com (Postfix) with ESMTPSA id 4A354B9F24; Tue, 12 Jun 2012 09:05:31 -0400 (EDT) Message-ID: <4FD73E8F.1010206@ateamsystems.com> Date: Tue, 12 Jun 2012 20:05:19 +0700 From: Adam Strohl User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0) Gecko/20120428 Thunderbird/12.0.1 MIME-Version: 1.0 To: Pete French References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-stable@freebsd.org Subject: Re: IPv6 and CARP crashes boxes X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Jun 2012 13:05:40 -0000 On 6/12/2012 19:48, Pete French wrote: > I ran into some - aliases on a CARP integface did not seem > to work proprly - but if you workaround that then it appears > to work fine. We are using it in production with no problems. I have noticed this issue (CARP + IPv4 aliases) with older (pre 9.x) versions of FreeBSD. I maintain some legacy 6.2 servers and had to eventually add ifconfig statements inside rc.local to get the links to coalesce. 6.2 appears to ignore _alias directives entirely inside rc.conf, and has real issues if you add/delete aliases to a CARP interface while its up (both peers end up thinking they're MASTER). In 9.x it all works as expected at least for IPv4 (rc.conf carp_alias entries, aliases, on the fly reconfiguring). -- Adam Strohl http://www.ateamsystems.com/