3Com WX3000 operation manual Disabling the router from receiving host routes

Follow these steps to configure RIP route summarization:

To do...	Use the command...	Remarks
Enter system view	system-view	—
Enter RIP view	rip	—
Enable RIP-2 automatic	summary	Required
route summarization		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		Required
	undo host-route	By default, the router receives
receiving host routes
		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
Configure RIP to filter	route-policyroute-policy-name }	Required
	import	By default, RIP does not
incoming routes
	filter-policy gateway ip-prefix-name	filter any incoming route.
	import
	filter-policy acl-numberexport	Required
Configure RIP to filter	[ protocol [ process-id ] ]
		By default, RIP does not
outgoing routes	filter-policy route-policy
		filter any outgoing route.
	route-policy-name export

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