Date: Sat, 30 Dec 2006 18:59:21 GMT From: Antonio Querubin<tony@lava.net> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/107358: IPv6 6to4 broken in FreeBSD 6.1-RELEASE-p11 Message-ID: <200612301859.kBUIxLdr079853@www.freebsd.org> Resent-Message-ID: <200612301900.kBUJ0XjW006825@freefall.freebsd.org>
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>Number: 107358 >Category: kern >Synopsis: IPv6 6to4 broken in FreeBSD 6.1-RELEASE-p11 >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sat Dec 30 19:00:32 GMT 2006 >Closed-Date: >Last-Modified: >Originator: Antonio Querubin >Release: FreeBSD 6.1-RELEASE-p11 i386 >Organization: LavaNet >Environment: System: FreeBSD localhost 6.1-RELEASE-p11 FreeBSD 6.1-RELEASE-p11 #0: Mon Dec 18 05:01:40 HST 2006 root@localhost:/usr/obj/usr/src/sys/GENERIC i386 >Description: IPv6 6to4 broke somewhere between 6.1-p2 and 6.1-p11. This effectively disables IPv6 connectivity for hosts on non-native IPv6 networks. >How-To-Repeat: Using a system on a network which has no native IPv6 connectivity: In /etc/rc.conf: - Enable IPv6. - Configure stf_interface_ipv4addr with the local IPv4 address. - Set ipv6_defaultrouter to the standard RFC 3068 address 2002:c058:6301:: Boot generic kernel 6.1-p11. Verify the stf0 interface is up and configured with a 6to4 address. ping6 the stf0 IPv6 address and you get no response. ping6 or traceroute6 to any outside IPv6 host (eg. www.isc.org) and you get no response. >Fix: Boot generic kernel 6.1-p2 and repeat above tests. You should get ping responses from the local stf0 address as well as outside IPv6 hosts. I suspect this broke beginning in p5 and any kernel prior to p5 will also work. >Release-Note: >Audit-Trail: >Unformatted:
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