HP 6120XG HP ProCurve Series 6120 Blade Switches Access Security Guide - Page 316
Named Source-Port Filters, Operating Rules for Named Source-Port Filters
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Traffic/Security Filters and Monitors Filter Types and Operation This list shows the filter created to block (drop) traffic from source port 5 (workstation "X") to destination port 7 (server "A"). Notice that the filter allows traffic to move from source port 5 to all other destination ports. Figure 9-3. The Filter for the Actions Shown in Figure 9-2 Named Source-Port Filters You can specify named source-port filters that may be used on multiple ports and port trunks. A port or port trunk can only have one source-port filter, but by using this capability you can define a source-port filter once and apply it to multiple ports and port trunks. This can make it easier to configure and manage source-port filters on your switch. The commands to define, configure, apply, and display the status of named source-port filters are described below. Operating Rules for Named Source-Port Filters ■ A port or port trunk may only have one source-port filter, named or not named. ■ A named source-port filter can be applied to multiple ports or port trunks. ■ Once a named source-port filter is defined, subsequent changes only modify its action, they don't replace it. ■ To change the named source-port filter used on a port or port trunk, the current filter must first be removed, using the no filter source-port named-filter command. 9-6