Specifications

Appendix A: Troubleshooting Hyper-V discovery
Verifying the firewall settings
To allow Virtualization Manager to collect data, the following firewall rules must
be enabled:
l Core Networking
l WMI DCOM-In
If you connect to the Hyper-V host over a DMZ or otherwise employ a hardware
firewall, you must make corresponding changes to your hardware firewall.
If the Hyper-V host cannot respond to ping, either open port 7 or follow the
instructions in Disabling ping discovery to disable ping.
Adding the Windows Firewall snap-in
If you use a Server Core installation, you can connect to the host using an MMC
connection to the host to modify the firewall.
1. Log on to a remote server that can connect to the Server Core installation
with administrative credentials.
2. Press Windows Key + R, and then type mmc.
3. In the File menu, click Add/Remove Snap-in.
4. Select Windows Firewall with Advanced Security.
5. Click Add.
6. Select Another computer, and then enter the IP address or computer name
of the Server Core installation.
7. Click OK.
8. Click OK again.
After the snap-in is added, complete the following instructions.
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