NETGEAR RT311, RT314 manual Generic Filter Rule Fields

Reference Guide for the Model RT311 and RT314 Internet Access Gateway Routers

Generic Filter Rule

This section provides information about configuring the protocol-independent parameters for a generic filter rule for your router. Table 10-5lists the fields in the menu. When you complete Menu 21.1.1 - Generic Filter Rule, press [Enter] at the Press ENTER to Confirm... prompt to confirm your selections. Press [Esc] at any time to cancel your selections. The data entered is displayed on Menu 21.1 - Filter Rules Summary.

Table 10-5.	Generic Filter Rule Fields
Field		Description
Active		Make the filter rule active (Yes) or inactive (No).
Offset		Offset refers to the value of the byte that you want to use as your starting offset. That is,
		in the data packet, at what point do you want to begin the comparison. The range for
		this field is from 0 to 255. Default = 0.
Length		The length, in bytes, of the data in the packet that the router should use for comparison
		and masking. The starting point of this data is determined by Offset. The range for this
		field is 0 to 8. Default = 0.
Mask		Specify (in hexadecimal format) the value that the router should logically qualify and the
		data in the packet. Because length is given in bytes, enter a hexadecimal number that
		is twice the specified length for numbers in this field. For example, if length is 4, a valid
		Mask must have 8 hexadecimal numbers (1155ABF8).
Value		Specify (in hexadecimal format ) the value that the router should use to compare with
		the masked packet. The value should align with Offset. Because length is given in
		bytes, you need to enter twice the length in hexadecimal numbers for this field. For
		example, if length is 4, a valid value must have 8 hexadecimal numbers (1155ABF8).
		If the result from the masked packet matches Value, the packet is considered matched.
More		Determine whether to pass the packet through the next filter rule before an action is
		taken. There are two options:
		• Yes
		• No (Default)
		If Yes is selected, Action Matched and Action Not Matched will be N/A.

Configuring Filters 10-9