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Re: [Xen-devel] peth1: received packet with own address as source address

  • To: David F Barrera <dfbp@xxxxxxxxxx>
  • From: Arnd Schmitter <arnd_xen@xxxxxxxx>
  • Date: Mon, 17 Oct 2005 22:29:50 +0200
  • Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Mon, 17 Oct 2005 20:38:40 +0000
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David F Barrera wrote:
On Mon, 2005-10-17 at 20:50 +0200, Arnd Schmitter wrote:
David F Barrera wrote:
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, thanks for your response. My network configuration appears to be
OK; it is simple, one NIC and its IP address, and everything seems to be
working well. Also, there are no two machines with the same address. So,
I am wondering if this is a problem with Xen. I have opened up a
bugzilla report, as I would like to have a definitive answer as to
whether this is a bug or a network configuration issue.


Only one NIC and peth1 ??

Take a look at your ifconfig output. Maybe there are two Virtual-Interfaces witch the same MAC.



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