From owner-freebsd-questions@FreeBSD.ORG Fri May 16 12:26:10 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 97B29106566C for ; Fri, 16 May 2008 12:26:10 +0000 (UTC) (envelope-from sonicy@otenet.gr) Received: from aiolos.otenet.gr (aiolos.otenet.gr [195.170.0.93]) by mx1.freebsd.org (Postfix) with ESMTP id 07F498FC0A for ; Fri, 16 May 2008 12:26:09 +0000 (UTC) (envelope-from sonicy@otenet.gr) Received: from joshua.freebsdgr.org (athedsl-4362373.home.otenet.gr [79.130.0.117]) (authenticated bits=0) by aiolos.otenet.gr (8.13.8/8.13.8/Debian-3) with ESMTP id m4GCQ7Br026881 for ; Fri, 16 May 2008 15:26:08 +0300 Message-ID: <482D7D5F.8040604@otenet.gr> Date: Fri, 16 May 2008 15:26:07 +0300 From: Manolis Kiagias User-Agent: Thunderbird 2.0.0.12 (X11/20080324) MIME-Version: 1.0 CC: freebsd-questions@freebsd.org References: <482D54B3.3060306@otenet.gr> <200805161314.22978.nvass@teledomenet.gr> <20080516125422.Q19201@wojtek.tensor.gdynia.pl> <482D6937.10906@otenet.gr> <20080516131443.W19365@wojtek.tensor.gdynia.pl> <482D6F86.7050909@otenet.gr> In-Reply-To: <482D6F86.7050909@otenet.gr> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [SOLVED] Routing to internet addresses ending with 255 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: Fri, 16 May 2008 12:26:10 -0000 Manolis Kiagias wrote: > Wojciech Puchar wrote: >>>> i don't think it's freebsd version dependent, unless developers >>>> made a bug. >>>> >>>> >>> all these systems are behind ADSL routers and use NAT. Their >>> internal addresses are in the 192.168.0.X range. >>> I could easily consider this a problem of the (cheap) ADSL routers, >>> but 6 >> >> very likely. yesterday i configured chinese 5 WLAN/LAN >> switch/routers, it looks like it's software was written by someone >> during single lunch break ;) >> >> i found 2 bugs not even searching much. but - as just a LAN/WLAN >> bridges they work fine. > > I too, am very well aware of the "quality" of these systems :) >> >>> and 7 use the same model (OTOH, there may be different firmware >>> versions). >> >> but WHAT are external IP's of these routers. this is important. >> >> if the "problem" host is A.B.C.255 check if routers external IP isn't >> A.B.C.something > > No, I just checked again with DynDNS update logs and all three routers > had very different IP addresses at the time I was trying. Checking with the internal log of the router confirmed the suspicions of people answering my question: The adsl router is responsible for the problem with the 255 address. It seems it cuts out these addresses as some kind of "attack". No changes in configuration (firewall, protection and so on) on the router itself disables it. It seems I will have to live with it ;) Oh well...