From owner-freebsd-questions@FreeBSD.ORG Thu Mar 20 21:35:32 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1576A106566B for ; Thu, 20 Mar 2008 21:35:32 +0000 (UTC) (envelope-from jhary@unsane.co.uk) Received: from unsane.co.uk (unknown [IPv6:2001:470:1f08:110::2]) by mx1.freebsd.org (Postfix) with ESMTP id 8A0878FC29 for ; Thu, 20 Mar 2008 21:35:31 +0000 (UTC) (envelope-from jhary@unsane.co.uk) Received: from crab.unsane.co.uk (crab.unsane.co.uk [10.0.0.111]) (authenticated bits=0) by unsane.co.uk (8.14.0/8.14.0) with ESMTP id m2KLZdcS097259 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 20 Mar 2008 21:35:40 GMT (envelope-from jhary@unsane.co.uk) Message-ID: <47E2D7A2.3030107@unsane.co.uk> Date: Thu, 20 Mar 2008 21:31:14 +0000 From: Vince User-Agent: Thunderbird 2.0.0.12 (X11/20080313) MIME-Version: 1.0 To: DAve References: <47E2C758.4040408@pixelhammer.com> In-Reply-To: <47E2C758.4040408@pixelhammer.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: 'User Questions' Subject: Re: Odd aliasing question X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Mar 2008 21:35:32 -0000 DAve wrote: > I've looked but found no examples to give me confidence. While I have > lots of servers running alias IPs the IPs are all on the same network. > I've have been informed by my network admin that we will need to change > the IPs of our legacy name servers (we are just dragging them along for > a time, new name servers are up and domains are being moved to them). > > Currently the IP of ns2 is 208.252.191.2, this needs to change to > 65.123.104.25. The network admin is telling me he will have the router > for that NOC cage handle both IPs no problems. However I need to > continue answering the old IP until clients can get their equipment > reconfigured. > This will work fine. > Can I alias 208.252.191.2 once I change the NIC's IP to 65.123.104.25 > with a default route of 65.123.104.1? > yes, > What netmask would use for the alias line? > Whatever you currently use for those IPs. > This seems not possible to me, but you can learn something new everyday... > I've been supporting servers for about 10 years and I'm still learning :) Thats why its still fun. > Thanks, > > DAve Vince