VPS default IP gone

Hello,

All of a sudden, 2 of my 3 VPS's have lost their default IP's that appears when creating a new virtual server, so when I hit "create" I've got an error:

"New virtual server has no IP address! Perhaps Virtualmin could not work out the system's default IP."

The 3 VPS's are Debian, with Wemin 1.710 and Virtualmin 4.12.gpl . 2 of the VPS's are Squeeze and one Wheezy but I have the problem on 2, one 6 and one 7 ... The only relation I can make is that the 2 having the problem are "Linux 2.6.32-openvz-042stab093.5-amd64 on x86_64" while the one ok has "Linux 3.2.50-vs2.3.2.16-beng on x86_64".

Forgot to mention that everything was ok 2 weeks ago.

I found the way to correct the problem with either:

/etc/webmin/virtual-server/config adding a defip=XX.XX.XX.XX (IP of VPS, they have only one anyway) or going to GUI in "System settings->VirtualMin Configuration->Networking Settings->Default address for a virtual server" and setting the IP there.

But I am wondering if that's the good way because: - on the one that was working, that parameter is set to "Network interface" which is bond0 - on the Two that were not working, I have to set it manually (and the above "Network interface" is also set to bond0).

Is my fix ok ? why the difference ?

Thks. Pierre.