Server 2008 R2 change static IP looses connectivity outside sub-net (VMWare Workstation)
Posted on 2010-08-20
This is really strange. I have just spend two hours with a vmware supportguy who ended up
with a no-resolution...
So here goes.
I have a host os Windows7(32) that runs vmware workstation and inside it a guest Windows
Server 2008 R2(64).
All machines are on one sub-net 192.168.6.xxx (255.255.255.0) and the network adapter on
the host is bridged into the guest (allowing both to have their own IP). Host has IP 192.168.6.40
and the guest originally got 192.168.6.21 from my DHCP server.
Now I want to change the guest IP from dynamic to static and make it 192.168.6.7
Whenever I do this, I loose all connectivity outside my subnet. So, ping anything but 192.168.6.xxx
yields a timeout. Changing the guest back to 192.168.6.21 (static) makes everything work again.
I have no problem communicating inside the local net (192.168.6.xxx) to/from my guest but all
access to the "outside world" will only work if the guest has IP 192.168.6.21 ?!?
Reinstall vmware, network adaptors, bridges... we tried it all (imagine spending 2 full hours on
a support call) but to no avail. The vmware guy came to the conclusion that it must be related
to the Server 2008 R2 and not their bits, but I guess he is supposed to say so... :-)
Firewalls on guest, host have been turned off (not that it helped but just to rule out that).