Configuring A Filter On A Port Trunk - HP ProCurve 6400cl Series Access Security Manual

Traffic/Security Filters
Configuring Traffic/Security Filters
9-18

Configuring a Filter on a Port Trunk

This operation uses the same command as is used for configuring a filter on
an individual port. However, the configuration process requires two steps:
1. Configure the port trunk.
2. Configure a filter on the port trunk by using the trunk name (trk1, trk2,
...trk6) instead of a port name.
For example, to create a filter on port trunk 1 to drop traffic received inbound
for trunk 2 and ports 10-15:
ProCurve(config)# filter source-port trk1 drop trk2,10-15
Note that if you first configure a filter on a port and then later add the port to
a trunk, the port remains configured for filtering but the filtering action will
be suspended while the port is a member of the trunk. That is, the trunk does
not adopt filtering from the port configuration. You must still explicitly
configure the filter on the port trunk. If you use the show filter < index >
command for a filter created before the related source port was added to a
trunk, the port number appears between asterisks (
filter action has been suspended for that filter. For example, if you create a
filter on port 5, then create a trunk with ports 5 and 6, and display the results,
you would see the following:
*
), indicating that the
The *5* shows that port 5 is
configured for filter ng, but the i
filtering action has been suspended
whil e the port is a member of a trunk.
If you want the trunk to which port 5
belongs to filter traffic, then you must
explicitly configure filter ing on the
trunk.
Note: If you configure an existing
trunk for filtering and later add
another port to the trunk, the switch
will apply the filter to all traffic moving
on any link n the trunk. If you remove i
a port from the trunk it returns to the
configuration it had before it was
added to the trunk