From owner-freebsd-net@FreeBSD.ORG Sat Dec 31 06:33:29 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 CCA73106564A for ; Sat, 31 Dec 2011 06:33:29 +0000 (UTC) (envelope-from jhellenthal@gmail.com) Received: from mail-iy0-f182.google.com (mail-iy0-f182.google.com [209.85.210.182]) by mx1.freebsd.org (Postfix) with ESMTP id 880868FC08 for ; Sat, 31 Dec 2011 06:33:29 +0000 (UTC) Received: by iadj38 with SMTP id j38so33388169iad.13 for ; Fri, 30 Dec 2011 22:33:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to; bh=7yK2SYA8+m4jvL6Q59/73MnTjintwMdHVMj251tNrT0=; b=lYSua60A8+/ROQ7RnDUqg5fdT9rSP7LYGfZZJRpN8G0ea7TJk65SEmxvntUxo09B6r qlHPG/FZ9+BfpDqI1l+S+FAanfiyx9dp174rQub+UggdxSNnJE1YRSM4TrzIlBu9Z4dC FluZxIjGpbeOg9I06+AoqTazYyMRhwG/CmJ6c= Received: by 10.50.183.199 with SMTP id eo7mr49420204igc.5.1325313208813; Fri, 30 Dec 2011 22:33:28 -0800 (PST) Received: from DataIX.net (24-247-9-230.dhcp.aldl.mi.charter.com. [24.247.9.230]) by mx.google.com with ESMTPS id yg2sm90271641igb.1.2011.12.30.22.33.26 (version=TLSv1/SSLv3 cipher=OTHER); Fri, 30 Dec 2011 22:33:27 -0800 (PST) Sender: Jason Hellenthal Received: from DataIX.net (localhost [127.0.0.1]) by DataIX.net (8.14.5/8.14.5) with ESMTP id pBV6XMcr095825 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sat, 31 Dec 2011 01:33:23 -0500 (EST) (envelope-from jhell@DataIX.net) Received: (from jhell@localhost) by DataIX.net (8.14.5/8.14.5/Submit) id pBV6XHYf095824; Sat, 31 Dec 2011 01:33:17 -0500 (EST) (envelope-from jhell@DataIX.net) Date: Sat, 31 Dec 2011 01:33:17 -0500 From: Jason Hellenthal To: Marcin Cieslak Message-ID: <20111231063317.GA90338@DataIX.net> References: <20111230145854.GA22414@DataIX.net> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="u3/rZRmxL6MmkK24" Content-Disposition: inline In-Reply-To: Cc: freebsd-net@freebsd.org Subject: Re: IPv6 not responding on some aliases (recent 8-stable) 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: Sat, 31 Dec 2011 06:33:30 -0000 --u3/rZRmxL6MmkK24 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Dec 31, 2011 at 12:35:00AM +0000, Marcin Cieslak wrote: > > I have seen this behavior before when one of the addresses on an interf= ace =3D > > is in a DMZ while the others are not. But this was with IPv4. I would a= ssum=3D > > e IPv6 would have acted the same way but left it untested as it was not= cri=3D > > tical. Take this as informational only and double check your switches, = fire=3D > > walls, etc... >=20 > Unfortunately, this is a hosting provider. I have rebooted the box > to use their custom rescue netboot image (based on FreeBSD 8.0 running > on QEMU) and ... still one of the addresses didn't work in this setup. > However, two reboots later situation returned to normal, and all > IPv6 addresses respond. NDP table theory sounds plausible to me, > except... connection establishment to the IPv6 address port 22/tcp > takes sometimes noticeably too long (other TCP ports are usually fine). >=20 > But this is probably another story... >=20 Speaking just in the terms of too long of a connection wait on port 22. Fir= ewall off port 113 in and out. block drop in log quick proto tcp to any port =3D auth block out quick proto tcp to any port =3D auth That should help in terms of the speed at which you connect. Good luck with= the OP though. Happy Holiday... --=20 ;s =3D; --u3/rZRmxL6MmkK24 Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- iQEcBAEBAgAGBQJO/qysAAoJEJBXh4mJ2FR+sjUIAIdg9LrPIMC7UcF6xeWu4nwW 4DLOk7o0/Hh7WtGC9ay/6c2CqGHygLFwnvC21FiLGbNJBAenFwZXjWTFOAau35FZ JH5hFh94PSqhhnRXQ7kEVes0AzH1uY9kE5tQp6GR0oj+MEjPygVxtbyQjtYE4ZYF psqdM/Yze91+sc+L/gJP1FDMjYv4OWHKT38rRIFg4abrH/6DcuM8iSl5x2NdtK3s XhkBAuKtU9yUTO06h7JBFxeDz3GUlXQNeBeM/uclCwJVDYWT5goO8+NzQirzPAbh f0xiBvkVfG+VVNhy0y54/8g/Wi+qPLxCLOGJMJe/KqTINZU0CrYQ7F7/Cuku12A= =TJby -----END PGP SIGNATURE----- --u3/rZRmxL6MmkK24--