I have a 2008 r2 server with the Hyper-V role installed and conifgured. I have 2 VMs configured. In Virtual Network Manager I have an Internal Only virtual switch configured. The NIC that is created on the host when the vswitch was added has an IP assigned to it of 192.168.100.1, SM of 255.255.255.0 and no DG assigned.
I added the network to the vm settings, and configured the adapters in the guests with IPs of 192.168.100.2 and .3, SM of 255.255.255.0 and DG of 192.168.100.1.
Both guests are able to ping the gateway, but not eachother. The firewall is disabled on all 3 OSes.
I am sure its something obvious that I am missing, but I appreciate any assistance.