[Xen-users] Resolved

[Kris Hollingsworth <kris@xxxxxxxxxxxx>]

I was able to identify my problem, when Xen 2.0.7 was bringing up the 
VIF interface (VIF1.0), it was using the default MAC address of 
FE.FF.FF.FF.FF.FF, which was fine. However, when I would bring up the 
second interface, it would bring up the VIF(VIF2.0) with the same MAC 
address. I tried manually setting the VIF in the config file.
vif=[ 'mac=FE.FF.FF.FF.FF.10, bridge=xen-br1' ]

but it only changed the value of the MAC on the Virtual Machine. It 
still left the VIF interface with identical HWMac addresses. At this 
point the bridges would stop working, and removing one of the VIF's 
would not fix it. I rebooted and brought up the first VM, then I did:
ifconfig VIF1.0 down
ifconfig VIF1.0 hw ether FE.FF.FF.FF.FF.10
ifconfig VIF1.0 up

Which worked fine, brought up the second machine, which was 
FE.FF.FF.FF.FF.FF, and it still worked! Wonderful. Anyone have an idea 
why Xen is not doing this already? For now I'm probably just going to 
modify the /etc/xen/scripts/vif-bridge to modify it just before adding 
it to the bridge based on the MAC of the Virtual Machine. I'll be 
setting them statically in the configuration files now that I have them 
both working.
-Kris Hollingsworth


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