DeWalt WP54AG manual 156

Step 4:

You may add more firewall rules for specific security purposes. Click on the Add radio button at the screen shown above, followed by the Edit button and the screen on the left will appear.

Rule Name	: Enter a unique name to identify this firewall rule.
Disposition	: This parameter determines whether the packets obeying the rule
Policy	should be accepted or denied by the firewall. Choose between
	Accept and Deny.
Protocols	: Users are allowed to select the type of data packet from: TCP, UDP,
	ICMP, IGMP or ALL.
	Note: If users select either ICMP or IGMP, they are required to make
	further selection in the ICMP Types or IGMP Types respectively.
ICMP Types	: This IP protocol is used to report errors in IP packet routing. ICMP
	serves as a form of flow control, although ICMP messages are
	neither guaranteed to be received or transmitted.

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