Information Technology Reference
In-Depth Information
3-14. Controlling Broadcast and Multicast Traffic
Problem
You want to configure how the Windows Firewall responds to broadcast and multicast traffic
on a Windows Server 2003 computer.
Solution
Using a Command-Line Interface
The following command enables the local computer to respond to broadcast or multicast
traffic while using the domain profile:
> netsh firewall set multicastbroadcastresponse mode = ENABLE profile = DOMAIN
Using Group Policy
Tables 3-26 and 3-27 show the settings that control multicast and broadcast traffic behavior in
the domain and standard profiles respectively.
Table 3-26.
Configure Multicast and Broadcast Traffic—Domain Profile
Computer Configuration\Administrative Templates\Network\
Network Connections\Windows Firewall\Domain Profile
Path
Policy name
Windows Firewall: Prohibit unicast response to multicast or
broadcast requests
Enabled
to disallow responses to broadcast/multicast traffic;
Disabled
to
allow the local computer to respond.
Value
Table 3-27.
Configure Multicast and Broadcast Traffic—Standard Profile
Computer Configuration\Administrative Templates\Network\
Network Connections\Windows Firewall\Standard Profile
Path
Policy name
Windows Firewall: Prohibit unicast response to multicast or broadcast
requests
Enabled
to disallow responses to broadcast/multicast traffic;
Disabled
to
allow the local computer to respond.
Value
Using the Registry
To configure an individual computer not to respond to multicast or broadcast traffic, set the
following Registry value:
