A Windows XP installation automatically turns on the Windows firewall. Default firewall settings do not allow pings from outside and prevent ICMP echo requests from reaching the virtual machine running the firewall.
Note: Patch updates may re-enable ICMP blocking.
You must change the f irewall settings to allow outside pings and ICMP echo requests.
To change the firewall settings, run the command:
netsh firewall> set icmpsetting 8 ENABLE