3Com REMOTE ACCESS SYSTEM 1500, Management Manual

Page: 232 / 300

230 C
HAPTER
14: H
ANDLING
P
ACKET
F
ILTERS
Managing Filters
This section provides the following information about how to manage
filters:
■
Displaying the managed filter list
■
Adding filters to the managed filter list
■
Deleting filters from the managed filter list
■
Verifying filter file syntax
■
Displaying the contents of a filter
When managing filters, if you edit an existing filter and do not first
remove it from
every interface or user profile for which it is configured
and then reapply the new filter, the previously unedited version will still
apply. See Removing a Filter... sections on the next page.
Displaying the
Managed Filter List
To display the list of managed filters, use the following command:
list filters
The resulting display might look like the following example:
Adding Filters to the
Managed List
The
add filter
command verifies filter syntax before adding a filter to
the managed list. If syntax is valid, no message is generated and the
command prompt returns. If syntax errors exist, messages are sent
describing them.
If the syntax is invalid, the filter is still added to the managed list with a
status of
verify failed
. To correct filter file errors, you must make
the changes to the original filter file using a text editor and re-TFTP the
file to FLASH memory. You must then use the
verify filter
command to check the filter file syntax. For more information about
verify filter
, see “Verifying Filter File Syntax” on page 232.
FILTERS
Filter Name Status Protocols
xfilter.in NORMAL IP IP-RIP
xfilter.out VERIFY FAILED IPX
ljc_filter.fi
l
NORMAL IP-CALL