Lantronix EMG 8500 EMG User Guide - Page 114

7: Networking Rule Parameters IP Address(es) Subnet Mask MAC Address Protocol Port Range Action Clear Generate rule to allow service Specify a single IP address to act as a filter. Example: 172.19.220.64 - this specific IP address only Specify a subnet mask to determine how much of the address should apply to the filter. Example: 255.255.255.255 to specify the whole address should apply. Specify a single MAC address to act as a filter. Example: 10:7d:1a:33:5c:e1 From the drop-down list, select the type of protocol through which the filter will operate. The default setting is All. Enter a range of destination TCP or UDP port numbers to be tested. An entry is required for TCP, TCP New, TCP Established, and UDP, and is not allowed for other protocols. Separate multiple ports with commas. Separate ranges of ports by colons. Examples:  22 - filter on port 22 only  23,64,80 - filter on ports 23, 64 and 80  23:64,80,143:150 - filter on ports 23 through 64, port 80 and ports 143 through 150 Select whether to Drop, Reject, or Allow communications for the specified IP address, subnet mask, protocol, and port range. Drop ignores the packet with no notification. Reject ignores the packet and sends back an error message. Allow permits the packet through the filter. Click the Clear button to clear any Rule Parameter information set above. You may wish to "punch holes" in your filter set for a particular protocol or service. For instance, if you have configured your NIS server and wish to create an opening in your filter set, select the NIS option and click the Add Rule button. This entry adds a new rule to your filter set using the NIS -configured IP address. Other services and protocols added automatically generate the necessary rule to allow their use. 3. Click the right arrow button to add the new rule to the bottom of the Rules list box on the right. A maximum of 64 rules can be created for each ruleset. 4. To remove a rule from the filter set, highlight that line and click the left arrow. The rule populates the rule definition fields, allowing you to make minor changes before reinserting the rule. To clear the definition fields, click the Clear button. 5. To change the order of priority of the rules in the list box, select the rule to move and use the up or down arrow buttons on the right side of the filter list box. 6. To save, click the Apply button. The new filter displays in the menu tree. Note: To add another new filter rule set, click the Back to IP Filter link to return to the Network > IP Filter page. EMG™ Edge Management Gateway User Guide 114