3Com SuperStack 4, Руководство по настройке

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RIP 127
Configuring Route Filtering
The Router provides a route filtering function. You can configure the filter policy
rules by specifying the ACL and ip-prefix for route redistribution and distribution.
To import a route, the RIP packet of a specific router can also be received by
designating a neighbor router.
Perform the following configurations in RIP View.
Configuring RIP to Filter the Received Routes
Configuring RIP to Filter the Distributed Routes
By default, RIP will not filter the received and distributed routing information.
■
The
filter-policy import
command filters the RIP routes received from its
neighbors, and the routes that cannot pass the filter will not be added to the
routing table, and will not be advertised to the neighbors.
■
The
filter-policy export
command filters all the advertised routes,
including routes imported by using the
import-route
command, and RIP
routes learned from the neighbors.
■
If the
filter-policy export
command does not specify which route is to be
filtered, then all the routes imported by the
import-route
command and the
transmitted RIP routes will be filtered.
Configuring Traffic Sharing Across RIP Interfaces
Equivalent routes indicates that there is one destination address and multiple
next-hop routes in the routing table. If RIP traffic sharing among the interfaces is
Table 127 Configuring RIP to Filter the Received Routes
Operation Command
Filter the received routing information
distributed by the specified address
filter-policy gateway
ip_prefix_name import
Cancel filtering of the received routing
information distributed by the specified
address
undo filter-policy gateway
ip_prefix_name [ gateway
ip-prefix-name ] | route-policy
route-policy-name
} import
Filter the received global routing information
filter-policy { acl_number |
ip-prefix ip_prefix_name [
gateway
ip-prefix-name
] |
route-policy
route-policy-name
}
import
Cancel filtering of the received global routing
information
undo filter-policy {
acl_number
|
ip-prefix
ip_prefix_name
} import
Table 128 Configuring RIP to Filter the Distributed Routes
Operation Command
Configure RIP to filter the
distributed routing
information
filter-policy {
acl_number
| ip-prefix
ip_prefix_name | route-policy route_policy_name
} export [ routing_protocol ]
Cancel the filtering of the
routing information
undo filter-policy {
acl_number
| ip-prefix
ip_prefix-name | route-policy route_policy_name
} export [ routing_protocol ]