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Related commands
ipv6 filter-policy import
ipv6 filter-policy import
Use ipv6 filter-policy import to configure IPv6 IS-IS to filter received routes.
Use undo ipv6 filter-policy import to remove the configuration.
Syntax
ipv6 filter-policy { acl6-number | prefix-list prefix-list-name | route-policy route-policy-name } import
undo ipv6 filter-policy import
Default
IPv6 IS-IS does not filter received routes.
Views
IS-IS view
Predefined user roles
network-admin
Parameters
acl6-number: Specifies an IPv6 ACL by its number in the range of 2000 to 3999 to filter received routes.
ipv6-prefix-name: Specifies an IPv6 prefix list by its name, a case-sensitive string of 1 to 63 characters,
to filter received routes.
route-policy-name: Specifies a routing policy by its name, a case-sensitive string of 1 to 63 characters, to
filter received routes.
Usage guidelines
This command filters received routes. Only routes that have not been filtered can be added into the
routing table.
To reference an advanced ACL (with a number from 3000 to 3999) in the command or in the routing
policy, 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 } ipv6
source sour sour-prefix command
• To deny/permit a route with the specified destination and prefix, use the rule [ rule-id ] { deny |
permit } ipv6 source sour sour-prefix destination dest dest-prefix command.
The source keyword specifies the destination address of a route and the destination keyword specifies the
prefix of the route. The specified prefix must be valid. Otherwise, the configuration does not take effect.
Examples
# Use IPv6 ACL 2003 to filter received routes.
<Sysname> system-view
[Sysname] isis 1
[Sysname-isis-1] ipv6 filter-policy 2003 import
# Configure IPv6 ACL 3000 to permit only route 2001::1/128 to pass. Use the ACL to filter received
routes.
<Sysname> system-view
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