Date: Sat, 18 Feb 2006 14:21:01 GMT From: Cristian KLEIN <cristi@net.utcluj.ro> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/93526: IPv6 Multicast Listener Reports (MLD6 Reports) are not being sent on 6.1-PRERELEASE #5 Message-ID: <200602181421.k1IEL1iH079130@www.freebsd.org> Resent-Message-ID: <200602181430.k1IEU4Ev014231@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
>Number: 93526 >Category: kern >Synopsis: IPv6 Multicast Listener Reports (MLD6 Reports) are not being sent on 6.1-PRERELEASE #5 >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 Feb 18 14:30:04 GMT 2006 >Closed-Date: >Last-Modified: >Originator: Cristian KLEIN >Release: 6.1-PRERELEASE #5, GENERIC + ALTQ + POLLING >Organization: Technical Univerisity of Cluj-Napoca >Environment: FreeBSD hades.utcluj.ro 6.1-PRERELEASE FreeBSD 6.1-PRERELEASE #5: Fri Feb 17 16:53:00 EET 2006 root@hades.utcluj.ro:/usr/obj/usr/src/sys/HADES i386 >Description: After a host joins an IPv6 multicast group, the router periodically sends Multicast Listener Query, to find out whether the group still has to be routed. A host must answer with Multicast Lister Response, or he'll be disconnected. FreeBSD 6.1-PRERELEASE #5 does not send these reports. root@hades:~# netstat -g <snip> IPv4/IPv6 Multicast Group Memberships Group Gateway Netif <snip> ff0e::2:ffdd 33:33:00:02:ff:dd em0 <snip> root@hades:~# mld6query em0 ff0e::2:ffdd from fe80::211:25ff:fe80:b091, type=Multicast Listener Query, addr=ff0e::2:ffdd <command exits with no response> >How-To-Repeat: First, install net/mcast-tools from ports. Join a multicast group: root@hades:~# mcastread em0 ff0e::2222:1111 2000 & [1] 1666 Verify that the kernel knows we want that group: root@hades:~# netstat -g | grep ff0e::2222:1111 ff0e::2222:1111 33:33:22:22:11:11 em0 Query for that group: root@hades:~# mld6query em0 ff0e::2222:1111 from fe80::211:25ff:fe80:b091, type=Multicast Listener Query, addr=ff0e::2222:1111 Actual result: no response. Expected result: Multicast Listener Report for ff0e::2222:1111. >Fix: >Release-Note: >Audit-Trail: >Unformatted:
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200602181421.k1IEL1iH079130>