From owner-freebsd-net@FreeBSD.ORG Thu Mar 19 02:25:05 2015 Return-Path: Delivered-To: freebsd-net@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 DDF89A88 for ; Thu, 19 Mar 2015 02:25:04 +0000 (UTC) Received: from mail-pd0-f179.google.com (mail-pd0-f179.google.com [209.85.192.179]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id B0173218 for ; Thu, 19 Mar 2015 02:25:04 +0000 (UTC) Received: by pdbni2 with SMTP id ni2so61093310pdb.1 for ; Wed, 18 Mar 2015 19:25:04 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:message-id:date:from:user-agent:mime-version:to :subject:references:in-reply-to:content-type :content-transfer-encoding; bh=m0VpigRw57LJ3Fx/85HjYspFCPg6YsWy/WyjudHxndo=; b=L81gV6CJOwbkbXGP0I6m/IP0rGNmLUd2BcaGQmN2d37XHnYsH8HYZ2Qvh2f/9yESaW WDIIxWN7+kycD4DMMEIsO+2h5v4pVX0HHoqt+C4f39iOe0mPvpXzlAYxOGeRmmmRN3kW WtQiwr62TS8ecGqhBKnGptW9YLkkj0C5T7bBWvFVKQCD289usboixG31NFEYBNtj4O7e vFyHho87AISbGjQ2+YULxZfbFGjptxCvNhhK0yuOD6pmcm8M4isIbBfowWXMJyh9zVEk iAzKQfjrGhVdiLzdiuRVPNfbV3ko2yCd8Z8ZTt687Rf5tuh0LGQ794Sk0GjOJ/rJLJ1c qE2w== X-Gm-Message-State: ALoCoQlFV6L+ULfilCqNgdQuZ4eIX8tP3Xsn679aFnqP6xJgi1zWWmVJ/uydJ9LaQYaTPqi55rcf X-Received: by 10.70.55.132 with SMTP id s4mr5494713pdp.107.1426731903895; Wed, 18 Mar 2015 19:25:03 -0700 (PDT) Received: from [128.199.254.70] (sgp.sin.winterei.se. [128.199.254.70]) by mx.google.com with ESMTPSA id n10sm29750894pdp.18.2015.03.18.19.25.02 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 18 Mar 2015 19:25:03 -0700 (PDT) Message-ID: <550A337C.9030905@winterei.se> Date: Thu, 19 Mar 2015 11:25:00 +0900 From: "Paul S." User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 MIME-Version: 1.0 To: freebsd-net Subject: Re: Unremovable ARP entry and 'address already in use' References: <550A3271.2040501@winterei.se> In-Reply-To: <550A3271.2040501@winterei.se> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 19 Mar 2015 02:25:05 -0000 I just noticed that when obfuscating the IP, I added two dots. Please excuse them, the IP is proper (110.62.211.87 for the purposes of this thread) On 3/19/2015 午前 11:20, Paul S. wrote: > Hi, > > Seeing this on 10.1-release p5. > > FreeBSD ipfw-0.syd.fqdn.tld 10.1-RELEASE-p5 FreeBSD 10.1-RELEASE-p5 #0 > r278455: Mon Feb 9 07:18:21 UTC 2015 > root@ipfw-0.syd.fqdn.tld:/usr/obj/usr/src/sys/qfkern amd64 > > Basically, I have a static arp entry that I cannot remove. This in > itself is not a problem. Problem is, when trying to assign that IP > address to the same interface, it says the 'address is in use' (which > it is not) > > ? (110.62..211.87) at 00:12:c0:88:03:8f on ix1 permanent [ethernet] > > Attempting to remove the entry produces an invalid argument error. > > root@ipfw-0:~ # arp -d 110.62..211.87 > arp: writing to routing socket: Invalid argument > > ix1 does not have this IP configured anymore either. > > ix1: flags=8843 metric 0 mtu 1500 > description: FW Upstream 0 > options=8400bb > > ether 00:12:c0:88:03:8f > inet6 fe80::212:c0ff:fe88:38f%ix1 prefixlen 64 scopeid 0x2 > nd6 options=21 > media: Ethernet autoselect (10Gbase-LR ) > status: active > > When I try to assign it back to ix1, I get this > > root@ipfw-0:~ # ifconfig ix1 inet 110.62..211.87 netmask 255.255.254.0 > ifconfig: ioctl (SIOCAIFADDR): Address already in use > > I've verified with the provider that there isn't an arp entry at > present for this IP address, so the issue seems local to freebsd. > > Anyone ever see anything like this? > > I'm aware rebooting will fix it, but this is a live firewall and I'd > rather not do that.