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[Xen-users] Cannot change MAC address of domU vif

  • To: Xen List <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: Peter Braun <xenware@xxxxxxxxx>
  • Date: Tue, 30 Mar 2010 10:04:50 +0200
  • Delivery-date: Tue, 30 Mar 2010 01:05:58 -0700
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>


xen 3.4.1 - several domUs - bridged networking.

1) domU has not been MAC assigned in cfg file. Running for several
months without problem.
    Now domu has been shutdown. After starting again, vif MAC has been
randomly created new.
    Domu cannot communicate with gate - can ping only host IP and IPs
of domU which are on the same host.
    Located previous vif MAC in xend.log and assigned it to domu cfg
file - communication works without problem.

2) domU vif MAC cannot be changed

3) in the past we copied one domU accidentally including MAC address.
Both original and copy domu cannot
    communicate with outside world with any MAC address other then the original.

4) the problem is totaly associated to MAC address allocation. There
is no problem to change IP address of "working domU".

Any help greatly appreciated.

Thank you


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