From owner-freebsd-questions@FreeBSD.ORG Sun Nov 9 02:41:26 2014 Return-Path: Delivered-To: questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id EBF2BD08 for ; Sun, 9 Nov 2014 02:41:25 +0000 (UTC) Received: from mx1.blackfoot.net (mx1.blackfoot.net [216.14.232.10]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (Client CN "spam.blackfoot.net", Issuer "GeoTrust DV SSL CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id B64FD1A1 for ; Sun, 9 Nov 2014 02:41:25 +0000 (UTC) Received: from blackfoot.vision.net ([216.220.3.42]) by mx1.blackfoot.net ({9cf3d135-7b6e-4041-a57b-61a932741f4e}) via TCP (outbound) with ESMTP id 20141109024124271; Sun, 09 Nov 2014 02:41:24 +0000 X-RC-FROM: Received: from webmail.blackfoot.net (unknown [10.40.25.30]) (Authenticated sender: vagabond) by blackfoot.vision.net (Postfix) with ESMTPA id 064E27A17; Sat, 8 Nov 2014 19:41:22 -0700 (MST) Received: from 66.109.141.62 (SquirrelMail authenticated user vagabond) by webmail.blackfoot.net with HTTP; Sat, 8 Nov 2014 19:41:23 -0700 Message-ID: Date: Sat, 8 Nov 2014 19:41:23 -0700 Subject: Re: ARP only, no ICMP packets? From: "Gary Aitken" To: "Freebsd Questions" , "Freebsd Questions" User-Agent: SquirrelMail/1.4.22 MIME-Version: 1.0 Content-Type: text/plain;charset=utf-8 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal X-MAG-OUTBOUND: blackfoot.redcondor.net@216.220.3.42/32 X-Mailman-Approved-At: Sun, 09 Nov 2014 02:47:44 +0000 Cc: gmx@ross.cx, jon@radel.com X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 09 Nov 2014 02:41:26 -0000 On 11/08/14 14:24, Michael Ross wrote: > On Sat, 08 Nov 2014 21:33:44 +0100, Gary Aitken wrote: > > After reconfiguring my internal network to private ip addrs, > > I'm trying to reconfigure a DLink wireless access point. > > At first I tried using the old IP addrs and configuring my > > workstation with an alias on the old network. That didn't > > work, so I've reset the wap. The manual says default addr is > > 192.168.0.50 netmask 255.255.255.0 > > The box I'm trying to access it from has an ip of 192.168.151.122/24. > > I've added an alias to the interface for the 192.168.0 subnet: > > Routing tables > > Internet: > > Destination Gateway Flags Refs Use Netif Expire > > default 192.168.151.101 UGS 0 0 re0 > > 127.0.0.1 link#10 UH 0 59752 lo0 > > 192.168.0.0/24 link#1 U 0 121 re0 > > 192.168.0.122 link#1 UHS 0 0 lo0 > > 192.168.151.0/24 link#1 U 0 54 re0 > > 192.168.151.122 link#1 UHS 0 0 lo0 > > When I attempt to access the WAP, I see only ARP requests, > > and it appears not to answer: > > $ arp -n -a > > ? (192.168.151.122) at f4:6d:04:78:70:62 on re0 permanent [ethernet] > > ? (192.168.0.122) at f4:6d:04:78:70:62 on re0 permanent [ethernet] > > ? (192.168.151.101) at 00:01:02:c2:a1:a8 on re0 expires in 339 seconds [ethernet] > > # tcpdump -flnt -i re0 | grep 192.168.0.50 > > tcpdump: verbose output suppressed, use -v or -vv for full protocol decode > > listening on re0, link-type EN10MB (Ethernet), capture size 65535 bytes > > ARP, Request who-has 192.168.0.50 tell 192.168.0.122, length 28 > No ARP reply... > > > I have difficulty believing the wap unit is defective, as > > "it worked before I changed all the addresses..." > > Maybe not defective as such, but some DLinks ( mine for example ) > ignore everything not originating from their own /24, > so unless packets come from 192.168.0.x, they will be silently > discarded. In this case, they are originating from 192.168.0.122, so should be ok there. (see ARP request above) On 11/08/14 16:34, Jon Radel wrote: > Have you swept the /24 on the off chance that the manual is fibbing about > 192.168.0.50 but not about it being some address in 192.168.0.0/24? If > that fails, try 192.168.1.0/24. Other addresses D-Link seems to favor as > the default: > 192.168.0.1 > 192.168.0.30 > 192.168.1.1 Thanks. Yes, I swept all of 192.168.0.* and .1.* nada.