From owner-freebsd-bugs@FreeBSD.ORG Fri Aug 26 11:10:06 2011 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B3D96106567A for ; Fri, 26 Aug 2011 11:10:06 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 91AAC8FC16 for ; Fri, 26 Aug 2011 11:10:06 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id p7QBA69N027897 for ; Fri, 26 Aug 2011 11:10:06 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id p7QBA6JZ027896; Fri, 26 Aug 2011 11:10:06 GMT (envelope-from gnats) Resent-Date: Fri, 26 Aug 2011 11:10:06 GMT Resent-Message-Id: <201108261110.p7QBA6JZ027896@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Martin Laabs Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 48668106564A for ; Fri, 26 Aug 2011 11:06:42 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from red.freebsd.org (red.freebsd.org [IPv6:2001:4f8:fff6::22]) by mx1.freebsd.org (Postfix) with ESMTP id 1F3598FC18 for ; Fri, 26 Aug 2011 11:06:42 +0000 (UTC) Received: from red.freebsd.org (localhost [127.0.0.1]) by red.freebsd.org (8.14.4/8.14.4) with ESMTP id p7QB6fm3080846 for ; Fri, 26 Aug 2011 11:06:41 GMT (envelope-from nobody@red.freebsd.org) Received: (from nobody@localhost) by red.freebsd.org (8.14.4/8.14.4/Submit) id p7QB6fAO080845; Fri, 26 Aug 2011 11:06:41 GMT (envelope-from nobody) Message-Id: <201108261106.p7QB6fAO080845@red.freebsd.org> Date: Fri, 26 Aug 2011 11:06:41 GMT From: Martin Laabs To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: kern/160206: gifX stops working after a while (IPv6 tunnel) X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 Aug 2011 11:10:06 -0000 >Number: 160206 >Category: kern >Synopsis: gifX stops working after a while (IPv6 tunnel) >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Aug 26 11:10:06 UTC 2011 >Closed-Date: >Last-Modified: >Originator: Martin Laabs >Release: 8.2-STABLE >Organization: - >Environment: FreeBSD server.martinlaabs.de 8.2-STABLE FreeBSD 8.2-STABLE #1: Fri Apr 8 15:35:37 CEST 2011 martin@server.martinlaabs.de:/usr/obj/usr/src/sys/SERVER_KERNEL i386 >Description: I have the sixxs-aiccu port running that creates a IPv6 tunnel to get IPv6 access. This is working fine but sometimes the gifX interface stucks so it does not work anymore. It doesn't even answer to a ping6 to its local adress. Restarting the sixxs-aiccu daemon (that recreate the gifX interface for me), destroying and recreating the gifX interface afterwards and even using an other gifX interface (i.e. gif1 instead of gif0) do not resolve the problem. Rebooting the whole system however restore the IPv6 connectivity. The routing table is also OK and no special ipfw filters are configured. # ifconfig gif1 gif1: flags=8051 metric 0 mtu 1280 tunnel inet 192.168.1.250 --> 212.224.0.189 inet6 fe80::230:5ff:fe69:c309%gif1 prefixlen 64 scopeid 0x5 inet6 2001:6f8:1c00:1b8::2 --> 2001:6f8:1c00:1b8::1 prefixlen 128 nd6 options=3 options=1 # ping6 -c5 2001:6f8:1c00:1b8::2 PING6(56=40+8+8 bytes) 2001:6f8:1c00:1b8::2 --> 2001:6f8:1c00:1b8::2 --- 2001:6f8:1c00:1b8::2 ping6 statistics --- 5 packets transmitted, 0 packets received, 100.0% packet loss # netstat -nr [...] Internet6: Destination Gateway Flags Netif Expire ::/96 ::1 UGRS lo0 => default 2001:6f8:1c00:1b8::1 UGS gif1 ::1 ::1 UH lo0 ::ffff:0.0.0.0/96 ::1 UGRS lo0 2001:6f8:1c00:1b8::1 2001:6f8:1c00:1b8::2 UH gif1 [...] >How-To-Repeat: Don't know how to repeat the problem reproducible >Fix: Reboot the whole system >Release-Note: >Audit-Trail: >Unformatted: