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50 May 2004 6212-A2-GB20-00
5.6.2 IP Filtering
On the Firewall menu, click on Add to configure the IP filtering entries. Fill out the parameters
below and click on Apply to submit the settings. The parameters are as follows:
Policy Parameters:
Precedence: This number sets the priority level of the rule. Larger numbers have higher
priorities if a conflict between rules occurs. Enter a number from 1–65534.
Src IP Address: Source IP address of the packet.
Src Net Mask: Source Netmask of the packet.
Dest IP address: Destination IP address of the packet.
Dest Net Mask: Destination Net mask of the packet.
Source Port: Source port of the packet (only for TCP/UDP protocol).
Destination Port: Destination port of the packet (only for TCP/UDP protocol).
Protocol: Select the protocol from the following: Any, TCP, UDP, ICMP, GRE, AH, ESP.
TCP Flags: Select the TCP FLAG from the following: none, urg, ack, psh, rst, syn, fin.
Firewall Parameters
Existing Action ID: If an action has already been established, check the box next to Existing
Action ID and enter its Action ID.
New Action: If a new action is required check the box next to New Action and then enter:
Interface Name: The interface the action applies to.
FW Action: Enter Allow to enable packets to pass through the router, Deny to drop
corresponding packets, Reject to reject packet with a response (such as sending a TCP reset),
or Reset to reject a packet with a reset flag.
Direction: The direction can be IN (only packets received are affected), OUT (only packets
sent are affected), or ANY (both packets sent and received are affected).