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12-11
Cisco ASDM User Guide
OL-16647-01
Chapter 12 Configuring Multicast Routing
MForwarding
MForwarding
The MForwarding pane lets you disable and reenable multicast forwarding on a per interface basis. By
default, multicast forwarding is enabled on all interfaces.
When multicast forwarding is disabled on an interface, the interface does not accept any multicast
packets unless specifically configured through other methods. IGMP packets are also prevented when
multicast forwarding is disabled.
Fields
• The Multicast Forwarding table displays the following information:
–
Interface—Displays the interfaces configured on the security appliance. Click an interface name
to select the interface. Double-click an interface name to toggle the Multicast Forwarding
Enabled status for the interface.
–
Multicast Forwarding Enabled—Displays Yes if multicast forwarding is enabled on the
specified interface. Displays No if multicast forwarding is disabled on the specified interface.
Double-click this entry to toggle Yes/No for the selected interface.
• Enable—Enables multicast forwarding on the selected interface.
• Disable—Disables multicast forwarding on the selected interface.
Modes
The following table shows the modes in which this feature is available:
For More Information
• Configuring Multicast Routing, page 12-1
PIM
Routers use PIM to maintaining forwarding tables for forwarding multicast datagrams.
When you enable multicast routing on the security appliance, PIM is enabled on all interfaces by default.
You can disable PIM on a per-interface basis.
For more information about configuring PIM, see the following:
• Protocol
• Neighbor Filter, page 12-13
• Bidirectional Neighbor Filter, page 12-14
• Rendezvous Points
• Route Tree
• Request Filter
Firewall Mode Security Context
Routed Transparent Single
Multiple
Context System
• — • ——