ZyXEL P-202H User Guide - Page 243
P-202H Plus v2 User's Guide, Filter Configuration, Menu 21.1.x.x TCP/IP Filter Rule
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P-202H Plus v2 User's Guide Table 80 Menu 21.1.x.x TCP/IP Filter Rule FIELD DESCRIPTION OPTIONS Port # Comp Press [SPACE BAR] and then [ENTER] to select the comparison to apply to the destination port in the packet against the value given in Destination: Port #. None Less Greater Equal Not Equal Source IP Address Enter the source IP Address of the packet you wish to filter. This 0.0.0.0 field is ignored if it is 0.0.0.0. IP Mask Enter the IP mask to apply to the Source: IP Addr. 0.0.0.0 Port # Enter the source port of the packets that you wish to filter. The 0-65535 range of this field is 0 to 65535. This field is ignored if it is 0. Port # Comp Press [SPACE BAR] and then [ENTER] to select the comparison to apply to the source port in the packet against the value given in Source: Port #. None Less Greater Equal Not Equal TCP Estab This field is applicable only when the IP Protocol field is 6, TCP. Yes Press [SPACE BAR] and then [ENTER] to select Yes, to have No the rule match packets that want to establish a TCP connection (SYN=1 and ACK=0); if No, it is ignored. More Press [SPACE BAR] and then [ENTER] to select Yes or No. If Yes Yes, a matching packet is passed to the next filter rule before an No action is taken; if No, the packet is disposed of according to the action fields. If More is Yes, then Action Matched and Action Not Matched will be N/A. Log Press [SPACE BAR] and then [ENTER] to select a logging None option from the following: Action None - No packets will be logged. Matched Action Matched - Only packets that match the rule parameters Action Not will be logged. Matched Action Not Matched - Only packets that do not match the rule Both parameters will be logged. Both - All packets will be logged. Action Matched Press [SPACE BAR] and then [ENTER] to select the action for a matching packet. Check Next Rule Forward Drop Action Not Matched Press [SPACE BAR] and then [ENTER] to select the action for a packet not matching the rule. Check Next Rule Forward Drop When you have Menu 21.1.x.x - TCP/IP Filter Rule configured, press [ENTER] at the message "Press ENTER to Confirm" to save your configuration, or press [ESC] to cancel. This data will now be displayed on Menu 21.1.x - Filter Rules Summary. The following figure illustrates the logic flow of an IP filter. Chapter 25 Filter Configuration 242