From owner-freebsd-net@FreeBSD.ORG Sun May 22 10:19:13 2011 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 85D961065675 for ; Sun, 22 May 2011 10:19:13 +0000 (UTC) (envelope-from smithi@nimnet.asn.au) Received: from sola.nimnet.asn.au (paqi.nimnet.asn.au [115.70.110.159]) by mx1.freebsd.org (Postfix) with ESMTP id 08B368FC0A for ; Sun, 22 May 2011 10:19:12 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by sola.nimnet.asn.au (8.14.2/8.14.2) with ESMTP id p4MAJAgu052859; Sun, 22 May 2011 20:19:11 +1000 (EST) (envelope-from smithi@nimnet.asn.au) Date: Sun, 22 May 2011 20:19:10 +1000 (EST) From: Ian Smith To: Doug Barton In-Reply-To: <4DD809C2.8080704@FreeBSD.org> Message-ID: <20110522183629.H60311@sola.nimnet.asn.au> References: <4DD809C2.8080704@FreeBSD.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Cc: Matthew Bowman , freebsd-net@freebsd.org Subject: Re: Bridging + VLANS X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 22 May 2011 10:19:13 -0000 On Sat, 21 May 2011, Doug Barton wrote: > On 05/21/2011 01:58, Matthew Bowman wrote: > > I have an uplink to my ISP on a 2 IP /30 network (1.1.1.0/30 in the > > diagram) > > No help for your actual problem, sorry. I just wanted to point out that 1/8 > has been assigned by IANA to APNIC, so it should not be used as a substitute > for RFC 1918 space. I'm assuming that you're just using it as a placeholder > for the real assignment, however I would argue that even that is a bad idea > since at minimum it's a bad example that others may draw poor conclusions > from. I was concerned about this too after noticing 1.x.x.x connections to our streamserver, knowing the ancient Linux firewall/router forces 1.1.1.1 as the address of the interface used for PPPoE - I guess that was common usage back when? - but see the APNIC bods are onto it, also noting that 1.0/16 and many/most 1.1 (other than 1.1.1/24) are already allocated: http://www.iptools.com/dnstools.php?tool=ipwhois&user_data=1.1.1.1&submit=Go Just as well, as I had to address the ADSL bridge within 1.1.1/24 .. > Yours in pedantry, > > Doug 254 out of 256 ain't bad, Ian