filter-policy import
Use filter-policy import to configure RIP to filter received routes.
Use undo filter-policy import to restore the default.
Syntax
filter-policy { acl-number | gateway prefix-list-name | prefix-list prefix-list-name [ gateway prefix-list-name ] } import [ interface-type interface-number ]
undo filter-policy import [ interface-type interface-number ]
Default
RIP does not filter received routes.
Views
RIP view
Predefined user roles
network-admin
mdc-admin
Parameters
acl-number: Specifies an ACL by its number in the range of 2000 to 3999 to filter received routes.
prefix-list prefix-list-name: Specifies an IP prefix list by its name, a case-sensitive string of 1 to 63 characters, to filter received routes.
gateway prefix-list-name: Specifies an IP prefix list by its name, a case-sensitive string of 1 to 63 characters, to filter routes based on their next hops.
interface-type interface-number: Specifies an interface by its type and number.
Usage guidelines
To reference an advanced ACL (with a number from 3000 to 3999) in the command, configure the ACL using one of the following methods:
To deny/permit a route with the specified destination, use the rule [ rule-id ] { deny | permit } ip source sour-addr sour-wildcard command
To deny/permit a route with the specified destination and mask, use the rule [ rule-id ] { deny | permit } ip source sour-addr sour-wildcard destination dest-addr dest-wildcard command.
The source keyword specifies the destination address of a route and the destination keyword specifies the subnet mask of the route. The subnet mask must be contiguous. Otherwise, the mask configuration does not take effect.
Examples
# Use ACL 2000 to filter received RIP routes.
<Sysname> system-view [Sysname] acl number 2000 [Sysname-acl-basic-2000] rule deny source 192.168.10.0 0.0.0.255 [Sysname-acl-basic-2000] quit [Sysname] rip 1 [Sysname-rip-1] filter-policy 2000 import
# Use IP prefix list abc to filter received RIP routes.
<Sysname> system-view [Sysname] ip prefix-list abc index 10 permit 11.0.0.0 8 [Sysname] rip 1 [Sysname-rip-1] filter-policy prefix-list abc import
# Configure ACL 3000 to permit only route 113.0.0.0/16 to pass. Use ACL 3000 to filter received routes.
<Sysname> system-view [Sysname] acl number 3000 [Sysname-acl-adv-3000] rule 10 permit ip source 113.0.0.0 0 destination 255.255.0.0 0 [Sysname-acl-adv-3000] rule 100 deny ip [Sysname-acl-adv-3000] quit [Sysname] rip 1 [Sysname-rip-1] filter-policy 3000 import
Related commands
acl (ACL and QoS Command Reference)
ip prefix-list