The ssm-policy command sets the range of SSM group addresses.
The undo ssm-policy command restores the default configuration.
By default, the range of IPv6 SSM group addresses is FF3x::/32. (The value of x ranges from 0 to F.)
| Parameter | Description | Value |
|---|---|---|
| basic-acl6-number | Specifies the number of the basic ACL that defines the range of SSM group addresses. | The value is an integer that ranges from 2000 to 2999. |
Usage Scenario
By default, the SSM group address range is FF3x::/32. The value of x ranges from 0 to F. You can run the ssm-policy command to specify the range of PIM SSM group addresses. All the PIM-SM (IPv6) interfaces consider that PIM SSM is enabled on all the multicast groups in the specified address range. The specified SSM group address range can exceed the default group address range.
Prerequisites
IPv6 multicast routing has been enabled using the multicast ipv6 routing-enable command in the system view.
Precautions
If Multicast Listener Discovery version 2 (MLDv2) is used to add an (S, G) entry, this command does not take effect.
For the numbered ACL6, in the ACL6 view, you can set the IPv6 address range of SSM multicast groups by specifying the source parameter in the rule (basic ACL6 view) command.
For the named ACL6, in the ACL6 view, when the rule (basic ACL6 view) command is used to configure a filtering rule, the filtering rule is effective only with the multicast group address range that is specified by the destination parameter and with the time period that is specified by the time-range parameter.
This command is valid for only PIM-SM (IPv6).