hyper v guest windows 2008 SP2 unreachable from intranet

Question

I have got strange problem with windows 2008 guest. Network for this host is configured as external. I am able to ping FROM this host and I am unable to ping to THIS host. When I am resetting connection at this guest system from network connections I can ping this host for few seconds. Where is the problem? This machine uses static address.

Answer 1

The same network configuration requirements of a real machine apply to virtual machines. Do you have a default gateway configured? Perhaps you could elaborate on exactly how your VM, host, etc have their NICs configured.

Answer 2

Are you pinging machine name and/or IP address?

Is Network Discovery enabled? By default it is not enabled. I would say this is the most likely root cause.

Also, look at this post: Enable Ping in Windows Server Firewall?

Based on: http://windows.microsoft.com/en-US/windows-vista/What-is-network-discovery , I would say that the custom status may warrant further investigation.

Custom

This is a mixed state in which some settings related to network discovery are enabled, but not all of them. For example, network discovery could be turned on, but you or your system administrator might have disabled a firewall exception that affects network discovery.

Network discovery requires that the dnscache, fdrespub, ssdpsrv, and upnphost services are started, that the Windows Firewall exception for network discovery is enabled, and that other firewalls are not interfering with network discovery. If some but not all of these are true, the network discovery state will be shown as Custom.