* [Bridge] NTP packets not passing the bridge
@ 2010-02-16 10:58 Martin Andersson Z
2010-02-16 16:31 ` Stephen Hemminger
0 siblings, 1 reply; 2+ messages in thread
From: Martin Andersson Z @ 2010-02-16 10:58 UTC (permalink / raw)
To: 'bridge@lists.linux-foundation.org'
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Hello.
I have a simple testsetup, where <node> --- | bridge | --- <node> is connected.
Every packets seems to traverse the bridge, except for the NTP packets.
When capturing on the in-port, what differes for this NTP packets is that there src-mac address is 00:00:00:00:00:00.
Where any other packets has valid src address.
Is there a check/validation in the bridge so that it will not pass eth-packets that has a src with all 0.
The kernel used is "2.6.31.5-0.1"
brg/Martin
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* Re: [Bridge] NTP packets not passing the bridge
2010-02-16 10:58 [Bridge] NTP packets not passing the bridge Martin Andersson Z
@ 2010-02-16 16:31 ` Stephen Hemminger
0 siblings, 0 replies; 2+ messages in thread
From: Stephen Hemminger @ 2010-02-16 16:31 UTC (permalink / raw)
To: Martin Andersson Z; +Cc: 'bridge@lists.linux-foundation.org'
On Tue, 16 Feb 2010 11:58:26 +0100
Martin Andersson Z <martin.z.andersson@ericsson.com> wrote:
> Hello.
>
> I have a simple testsetup, where <node> --- | bridge | --- <node> is connected.
>
> Every packets seems to traverse the bridge, except for the NTP packets.
>
> When capturing on the in-port, what differes for this NTP packets is that there src-mac address is 00:00:00:00:00:00.
> Where any other packets has valid src address.
>
> Is there a check/validation in the bridge so that it will not pass eth-packets that has a src with all 0.
>
Yes. all-zeros is not a valid ethernet device address.
Find and fix the hardware that is sending it.
--
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