ipv6 filter-policy export
Function
The ipv6 filter-policy export command configures a filtering policy to allow IS-IS to filter the imported IPv6 routes to be advertised.
The undo ipv6 filter-policy export command cancels the filtering function.
By default, IS-IS does not filter imported IPv6 routes to be advertised.
Format
ipv6 filter-policy { acl6-number | acl6-name acl6-name | ipv6-prefix ipv6-prefix-name | route-policy route-policy-name } export [ protocol [ process-id ] ]
undo ipv6 filter-policy [ acl6-number | acl6-name acl6-name | ipv6-prefix ipv6-prefix-name | route-policy route-policy-name ] export [ protocol [ process-id ] ]
Parameters
| Parameter | Description | Value |
|---|---|---|
| acl6-number | Specifies the number of a basic ACL6. | The value is an integer that ranges from 2000 to 2999. |
| acl6-name acl6-name | Specifies the name of an IPv6 named ACL. | The value of acl6-name is a string of 1 to 32 case-sensitive characters without spaces. |
| ipv6-prefix ipv6-prefix-name | Specifies the name of an IPv6 prefix list. | The value of ipv6-prefix-name is a string of 1 to 19 case-sensitive characters without spaces. |
| route-policy route-policy-name | Specifies the name of a route-policy to filter routes based on tag and other protocol parameters. | The value of route-policy-name is a string of 1 to 40 case-sensitive characters without spaces. |
| protocol | Specifies the imported routes that need to be filtered when the routes are advertised. Currently, the protocol can be direct, static, ripng, bgp, unr, ospfv3, or another isis process. If the protocol parameter is not specified, all imported routes are filtered. | - |
| process-id | Specifies the process ID if protocol is ripng, ospfv3, or another isis process. | The value is an integer that ranges from 1 to 65535. |
Usage Guidelines
The ipv6 filter-policy export command together with the ipv6 import-route command can be used to filter only the imported routes that are advertised to other wireless access controllers. If protocol is not specified, the routes that are imported from all other protocols are filtered. If protocol is specified, the routes that are imported from the specific protocol are filtered.
The ipv6 filter-policy export command can take effect only after IPv6 is enabled for the IS-IS process by the ipv6 enable command.
For an ACL6, when the rule command is used to configure a filtering rule, the filtering rule is effective only with the source address range that is specified by the source parameter and with the time period that is specified by the time-range parameter.
