HP 6120G/XG HP ProCurve Series 6120 Blade Switches Access Security Guide - Page 326
Configuring a Source-Port Traffic Filter, Forward, < destination-port-list >
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Traffic/Security Filters and Monitors Configuring Traffic/Security Filters Configuring a Source-Port Traffic Filter Syntax: [no] filter [source-port < port-number | trunk-name>] Specifies one inbound port or trunk. Traffic received inbound on this interface from other devices will be filtered. The no form of the command deletes the sourceport filter for < port-number > and returns the destination ports for that filter to the Forward action. (Default: Forward on all ports.) Note: If multiple VLANs are configured, the source-port and the destination port(s) must be in the same VLAN unless routing is enabled. Similarly, if a VLAN containing both the source and destination is multinetted, the source and destination ports and/or trunks must be in the same subnet unless routing is enabled. [ drop ] < destination-port-list > [ forward < port-list >] Configures the filter to drop traffic for the ports and/or trunks in the designated < destination-port-list >. Can be followed by forward < destination-port-list > if you have other destination ports set to drop that you want to change to forward. If no drop or forward action is specified, the switch automatically creates a filter with a forward action from the designated source port (or trunk) to all destination ports (or trunks) on the switch. [ forward ] < port-list > Configures the filter to forward traffic for the ports and/ or trunks in the designated < destination-port-list >. Because forward is the default state for destinations in a filter, this command is useful when destinations in an existing filter are configured for drop and you want to change them to forward. Can be followed by drop < destination-port-list > if you have other destination ports set to forward that you want to change to drop. If no drop or forward action is specified, the switch automatically creates a filter with a forward action from the designated source port (or trunk) to all destination ports (or trunks) on the switch. 9-16