I have two physical servers running Win2008 Enterprise, with 4 virtual machines each running on Hyper-V. I created a cluster using one of the virtual machines in each server, using Network Load Balancing under Windows 2003, using the multicast option.
The cluster nodes are converging correctly, I can ping the virtual IP from any of my machines in the datacenter (they share a single rack and a switch) but can't ping it from machines outside this switch, making the cluster invisible to the public internet.
All server use public IPs from the same VLAN, gateway and subnet mask. Is there anything else I need to configure on the machines, on the switch, or even in the datacenter router?