* Re: [Bugme-new] [Bug 12109] New: Multicast packets with TTL 0 sent out if not local listener
[not found] <bug-12109-10286@http.bugzilla.kernel.org/>
@ 2008-11-27 17:34 ` Andrew Morton
0 siblings, 0 replies; only message in thread
From: Andrew Morton @ 2008-11-27 17:34 UTC (permalink / raw)
To: netdev; +Cc: bugme-daemon, jani
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On Thu, 27 Nov 2008 02:32:27 -0800 (PST) bugme-daemon@bugzilla.kernel.org wrote:
> http://bugzilla.kernel.org/show_bug.cgi?id=12109
>
> Summary: Multicast packets with TTL 0 sent out if not local
> listener
> Product: Networking
> Version: 2.5
> KernelVersion: 2.6.27
> Platform: All
> OS/Version: Linux
> Tree: Mainline
> Status: NEW
> Severity: normal
> Priority: P1
> Component: IPV4
> AssignedTo: shemminger@linux-foundation.org
> ReportedBy: jani@ubuntu.com
>
>
> According to what I have read, setting the IP_MULTICAST_TTL option to 0 on a
> multicast sending socket should prevent it sending to the network, and be
> destined only for listeners on the local computer.
>
> This only seems to work if there is a local listener on that particular group.
> If such a listener app is stopped other computers on the LAN get the messages,
> and tcpdump -v shows they have TTL 0
>
> I am not sure if this is intended behaviour but it is unexpected.
>
>
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[not found] <bug-12109-10286@http.bugzilla.kernel.org/>
2008-11-27 17:34 ` [Bugme-new] [Bug 12109] New: Multicast packets with TTL 0 sent out if not local listener Andrew Morton
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