H3C Technologies H3C WX3000 Series Unified Switches - Manual (Page 656)

66-6
To do... Use the command... Remarks
Enable RIP-2 automatic route
summarization
summary
Required
Enabled by default
Disabling the router from receiving host routes
In some special cases, the router can receive a lot of host routes from the same segment, and these
routes are of little help in route addressing but consume a lot of network resources. After a router is
disabled from receiving host routes, it can refuse any incoming host route.
Follow these steps to disable the router from receiving host routes:
To do... Use the command... Remarks
Enter system view system-view —
Enter RIP view rip —
Disable the router from receiving
host routes
undo host-route
Required
By default, the router receives host
routes.
Configuring RIP to filter incoming/outgoing routes
The route filtering function provided by a router enables you to configure inbound/outbound filter policy
by specifying an ACL, address prefix list, or route policy to make RIP filter incoming/outgoing routes.
Besides, you can configure RIP to receive only the RIP packets from a specific neighbor.
Follow these steps to configure RIP to filter incoming/outgoing routes:
To do... Use the command... Remarks
Enter system view system-view —
Enter RIP view rip —
filter-policy { acl-number | route-policy
route-policy-name } import
Configure RIP to filter incoming
routes
filter-policy gateway ip-prefix-name
import
Required
By default, RIP does not filter
any incoming route.
filter-policy acl-number export [ protocol
[ process-id ] ]
Configure RIP to filter outgoing
routes
filter-policy route-policy
route-policy-name export
Required
By default, RIP does not filter
any outgoing route.
z
The filter-policy import command filters the RIP routes received from neighbors, and the routes
being filtered out will neither be added to the routing table nor be advertised to any neighbors.
z
The filter-policy export command filters all the routes to be advertised, including the routes
redistributed with the import-route command and routes learned from neighbors.
z
You can also use the filter-policy export command to filter outgoing routes redistributed from a
specified routing protocol.