Multicast
IPv6 Multicast Configuration
Cisco 500 Series Managed Switch Administration Guide 334
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STEP  2 To configure a VLAN, select it and click Edit. Enter the fields described above.
STEP  3 Click Apply. The Running Configuration file is updated.
MLD Proxy
NOTE This page is only found on SG500X/SG500XG devices.
To configure MLD Proxy: 
STEP 1 Click Multicast > IPv6 Multicast Configuration > MLD Proxy.
STEP  2 Enter the following fields:
• MLD Multicast Routing—Select to enable IPv6 Multicast routing.
• Downstream Protection—Select to discard downstream packets not 
required for the device.
• Source Specific Multicast—Select to enable delivering Multicast packets 
originating from a specific source address defined in the next field.
• SSM IPv6 Access List—Define the list containing source addresses from 
which to deliver Multicast packets:
- Default List—Defines the SSM range access list to FF3E::/32.
- User defined access list—Select the standard IPv6 access list name 
defining the SSM range. These access lists are defined in IPv6 Access 
Lists.
STEP  3 Click Apply. The Running Configuration file is updated.
To add protection to a VLAN, click Add and enter the following fields:
• Upstream Interface—Select the outgoing interface.
• Downstream Interface—Select the incoming interface.
• Downstream Protection—Select one of the following options:
- Use Global—Use the status set in the global block.
- Disable—This disables forwarding of IPv6 Multicast traffic from 
downstream interfaces.
- Enable—This enables forwarding from downstream interfaces.