Allows this computer to receive unicast responses to its outgoing multicast or broadcast messages. Note: This setting has ...

Allows this computer to receive unicast responses to its outgoing multicast or broadcast messages.  Note: This setting has no effect if the unicast message is a response to a Dynamic Host Configuration Protocol (DHCP) broadcast message sent by this computer. Windows Firewall always permits these DHCP unicast responses. However, this setting can interfere with the NetBIOS messages that detect name conflicts.