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[Xen-users] Re: Bug 339 - peth1: received packet with own address as source address


  • To: "Cyrus Katrak" <katrakcr@xxxxxxxxxxxx>
  • From: "John Hannfield" <hal9020@xxxxxxxxx>
  • Date: Fri, 4 May 2007 17:10:48 +0100
  • Cc: xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Fri, 04 May 2007 09:09:30 -0700
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Hi Cyrus,

on Your first dom0 use: macid="F0"
on your second dom0 use: macid="F1"

Well I left the first one at the default, and patched the second box.
Ifconfig shows my mac addresses as:

box1  peth0  HWaddr FE:FF:FF:FF:FF:FF
box2  peth0  HWaddr FE:FF:FF:FF:F0:00

Actually, grepping ifconfig for HWaddr, is interesting:

guest1    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
guest2    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
eth0        Link encap:Ethernet  HWaddr 00:A0:D1:E5:27:BA
peth0      Link encap:Ethernet  HWaddr FE:FF:FF:FF:F0:00
vif0.0       Link encap:Ethernet  HWaddr FE:FF:FF:FF:F0:00
xenbr0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:F0:00

It shows that peth0, vif0.0 and the bridge all share this MAC address.
Is that correct I wonder?  It's similar on the other box.

box1 runs xen 3.0.3  and is not showing any "received packet with own address"
in it's logs. They only show up on box2, which is running 3.0.5-rc4
patched with the code to change the mac address.

I will try changing it again, but I suspected there is not another machine
on the network with this mac address (FE:FF:FF:FF:F0:00 ) and that there
is something else wrong!

John

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