3Com 5500G-EI - Filter-Policy Import

224 CHAPTER 6: USING ROUTING PROTOCOL COMMANDS
It may be necessary that only the routing information that meets special conditions
can be advertised. Then, the filter-policy command can be used to set the filtering
conditions for the advertised routing information. Only the routing information
passing the filter can be advertised.
Related command: filter-policy import.
Example
Define the filtering rules for advertising the routing information of RIP. Only the
routing information passing the filtering of address prefix list p1 will be advertised
by RIP.
<SW5500>system-view
System View: return to User View with Ctrl+Z.
[SW5500]rip
[SW5500-rip]filter-policy ip-prefix p1 export
filter-policy import Syntax
filter-policy gateway ip_prefix_name import
undo filter-policy gateway ip_prefix_name import
filter-policy { acl_number | ip-prefix ip_prefix_name } import
undo filter-policy { acl_number | ip-prefix ip_prefix_name } import
View
Routing Protocol view
Parameter
acl_number Enter the access control list number used for matching the
destination address field of the routing information.
ip-prefix ip_prefix_name Enter the prefix address list name. Its matching
object is the destination address field of the routing information.
gateway ip_prefix_name Enter the prefix address list name of the neighbor
router address. Its matching object is the routing information advertised by the
specified neighbor router.
Description
Use the filter-policy gateway import command to filter the received routing
information advertised by a specified router.
Use the undo filter-policy gateway import command to cancel the setting of
the filtering condition.
Use the filter-policy import command to set the condition for filtering the
routing information.
Use the undo filter-policy import command to cancel the setting of filter
condition
By default, the received routing information is not filtered.