# Configuring SSM for IGMP

Use this procedure to configure Source-Specific Multicast (SSM) for IGMP.

## Procedure steps

1. From the navigation tree, double-click IP.

2. In the IP tree, click IGMP.

3. In the work area, click the Globals tab.

4. Select the DynamicLearning check-box to enable dynamic learning for the IGMP interface.

   OR

   Clear the DynamicLearning check-box to disable dynamic learning for the IGMP interface.

5. Select an AdminAction: radio button.

6. In the RangeGroup box, type an IP address.

7. In the RangeMask box, type a subnet mask.

## Variable definitions

Variable | Value
--- | ---
DynamicLearning | When selected, the switch can learn the multicast source dynamically from the IGMP proxy report.
AdminAction | Enables or disables SSM globally.
RangeGroup | Specifies the IP multicast group address range source IP address.
RangeMask | Specifies the subnet mask for the IP multicast group address range source IP address.