User guide

set filter
Chapter 2 Command Descriptions 111
set filter
Device support This command is supported in PortServer TS Family products. Not
supported in Digi One Family products.
Purpose Manages filters. Filters can be used with PPP and RADIUS.
• For PPP, filters can control and record traffic over PPP connections.
• When using RADIUS, the RADIUS server can send to the RADIUS
client (that is, a Digi product) a filter ID attribute, meaning a filter name
that is used in authenticating the connection. The “set radius” command
has an “ignorefilterid={on|off}” option. If “ignorefilterid=on,” the Digi
product ignores any filter names that are not defined, but will process
normally all filters that are defined. If “ignorefilterid=off,” the absence of
a filter that matches the RADIUS-provided filter ID results in
authentication failure.
With the “set filter” command, you can
• Create filters, which in turn creates entries in the filter table. The
maximum number of entries in the filter table varies by device. For
example, the maximum entries for PortServer TS Family devices is 8,
and the maximum entries for PortServer TS 8/16 Family devices is 16.
• Display entries in the filter table.
• Display the contents of a filter.
Uses for filters
Use filters to trigger the following actions on PPP connections:
• Block or pass packets.
• Bring up or reject connections.
• Reset the idle timeout timer.
• Send information to the log file.