From owner-freebsd-net@FreeBSD.ORG Mon Dec 6 06:41:15 2010 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 61F1B10656B2 for ; Mon, 6 Dec 2010 06:41:15 +0000 (UTC) (envelope-from TERRY@tmk.com) Received: from server.tmk.com (server.tmk.com [204.141.35.63]) by mx1.freebsd.org (Postfix) with ESMTP id 3F1F68FC0A for ; Mon, 6 Dec 2010 06:41:15 +0000 (UTC) Received: from tmk.com by tmk.com (PMDF V6.4 #37010) id <01NV2YQ11IR4000SKQ@tmk.com> for freebsd-net@freebsd.org; Mon, 06 Dec 2010 01:17:22 -0500 (EST) Date: Mon, 06 Dec 2010 01:11:48 -0500 (EST) From: Terry Kennedy To: freebsd-net@freebsd.org Message-id: <01NV2YXQ2LAC000SKQ@tmk.com> MIME-version: 1.0 Content-type: TEXT/PLAIN; CHARSET=us-ascii Subject: RE: EHOSTUNREACH returned for refused IPv6 connection 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: Mon, 06 Dec 2010 06:41:15 -0000 > Sorry, you're right: I forgot I don't have my tunnel setup so there's no > external IPv6 connectivity (I don't have an IPv6 network configured at > the moment at all). What confused me initially was the fact that ssh > displays the "No route to host" error instead of "Connection refused" > when both IPv4 and IPv6 addresses are available but only IPv4 works. I'm experiencing something which may be related. I posted a question in the FreeBSD Forums: http://forums.freebsd.org/showthread.php?t=19895 I don't get anything displayed at the application (ftp / telnet / etc.) level - it just hangs until the connection eventually times out. I do see unreachables getting into the FreeBSD box - it just seems like they don't make it down to the application level. The post I linked above has a more detailed description, as well as tcpdump output and so forth. System is 8-STABLE as of November 28th, but I see the same thing on a 6-STABLE from February 2010. Terry Kennedy http://www.tmk.com terry@tmk.com New York, NY USA