In group policy there are several settings that configure the Windows firewall. By default these settings only allow members of the local subnet to talk to one another. If you have more than 1 subnet in your domain you will need to make the following changes to Group Policy.
- Windows SBS Client – Windows XP Policy
– Computer Configuration/Administrative Template/Network/Network Connections/Windows Firewall/Domain Profile
– edit Windows Firewall: Allow Inbound Remote Desktop exceptions (should be enabled)
change the value from "localsubnet" to ‘*’
– edit Windows Firewall: Allow inbound remote administration exception (should be enabled)
change the value from "localsubnet" to ‘*’
– edit Windows Firewall: Allow inbound file and printer sharing exception (should be enabled)
change the value from "localsubnet" to ‘*’
***thanks to Kevin Royalty for the detailed list.
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