[Xen-bugs] [Bug 339] peth0: received packet with own address as source address

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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=339





------- Additional Comments From dbarrera@xxxxxxxxxx  2005-10-17 20:08 -------
I posted the question to the xen-devel lists, and Arnd Schmitter responded:

From:   Arnd Schmitter <arnd_xen@xxxxxxxx>
To:     David F Barrera <dfbp@xxxxxxxxxx>
Cc:     xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject:        Re: [Xen-devel] peth1: received packet with own address as 
source address
Date:   Mon, 17 Oct 2005 20:50:31 +0200  (13:50 CDT)

David F Barrera wrote:
> I am seeing a series of messages (below):
>
> peth1: received packet with  own address as source address
> peth1: received packet with  own address as source address
> peth1: received packet with  own address as source address
> peth1: received packet with  own address as source address
> peth1: received packet with  own address as source address
> peth1: received packet with  own address as source address
> peth1: received packet with  own address as source address
> peth1: received packet with  own address as source address
> peth1: received packet with  own address as source address
> peth1: received packet with  own address as source address
>
> Is this something that I should care about? I don't see an obvious
> impact to the machine. 
>
>   

This means normaly two things: Packets you send out are returning or 
there is another PC with the same address.
The Linuxkernel drops this packets as he think its a knd of address 
spoofing.
If all networking is working fine you will only have a minimal impact on 
performance. But it could indicate that something with your network 
configuration is wrong

Arnd

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