Netopia R2121, Руководство пользователя

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14-26 User’s Reference Guide
3. To add a filter to the filter set, select Append Filter to display a table of filters. Select a filter from the table
and press Return to add it to the filter set. The default action of newly added filters is to not for ward
packets that match their criteria.
To exit the table without adding the filter, press the Escape key.
4. To remove a filter from the filter set, select Detach Filter to display a table of appended filters. Select a
filter from the table and press Return to remove it from the set. To exit the table without removing the filter,
press the Escape key.
5. Select ADD FILTER SET NOW to save the current filter set. Select CANCEL to exit the Add Packet Filter Set
screen without saving the new filter set.
Deleting a packet filter set
To delete a packet filter set, select Delete IPX Packet Filter Set in the IPX Filters and Filter Sets screen to
display a list of filter sets. Select a filter set from the list and press Return to delete it. Press the Escape key to
exit the list without deleting the filter set.
Note: Deleting a filter set does not delete the filters in that set. However, the filters in the deleted set are no
longer in effect (unless they are par t of another set). The deleted set will no longer appear in the answer profile
or any connection profiles to which it was added.
IPX SAP filters
For each IPX SAP filter, you can configure a set of parameters to match on cer tain attributes of IPX SAP packet
entries. The filters check IPX SAP packets for entries that match and then act on those entries. The SAP
packets themselves are always allowed to continue after their entries are checked.
The purpose of filtering SAP packets is not to make your network more secure, but to add efficiency to network
bandwidth use. Filtering SAP packets may reduce the size of SAP packets and SAP binder y tables by removing
unwanted entries.
Viewing and modifying SAP filters
To display a table of IPX SAP filters, select Show/Change IPX SAP Filters in the IPX Filters and Filter Sets
screen.
To modify any of the filters in the table, select the desired filter and press Return to go to the Change SAP Filter
screen. The parameters in this screen are the same as the ones in the Add SAP Filter screen (see the next
section).