We deploy virtual machines using Citrix XenServer 6.0 for our clients.
Two seperate clients experience the same issue: when a Server 2008 virtual machine is restarted, the static IP addresses (network address, subnet, gateway, primary DNS) don't appear to apply correctly as the IP's cannot be pinged, network services cannot be accessed etc.
The issue is resolved by manually switching the network adapters to DHCP, then re-setting them to the original static IP's.
While not a major issue, it's a pain when restarting servers due to Windows Updates, plus iSCSI drives need to be manually connected to Windows again via iSCSI Initiator.
We have tried removed the network adapters from the virtual machine under XenCentre but without luck.
Anyone experienced similar issues?
Best Answer
I've seen similar oddities with vNICs that don't keep their MAC addresses between reboots. Take a close look at all of the details of the virtual NICs between reboots, and if they change, work out what's required to beat Xen into submission so they don't any more.