Name
ip multicast helper-map — interface
Synopsis
ip multicast helper-mapgroup-address
broadcast-address
access-list
no ip multicast helper-mapgroup-address
broadcast-address
access-list
ip multicast helper-map broadcastmulticast-address
access-list
no ip multicast helper-map broadcastmulticast-address
access-list
Configures
Multicast tunneling
Default
None
Description
Use this command to send broadcast packets through a multicast network that connects two or more broadcast-capable networks. At one multicast network, you convert the multicast packets to broadcast packets and send them through the broadcast network, which converts them back to multicast packets at the other end.
-
group-address
Multicast group whose traffic is to be converted to broadcast traffic.
-
broadcast
Specifies that the traffic is going to be converted from broadcast to multicast.
-
broadcast-address
When using the
group-address
parameter, this parameter specifies the IP address to which to send the broadcast traffic.-
multicast-address
When using the
broadcast
option, this variable specifies the multicast address to which converted traffic is sent.-
access-list
An extended access list that uses the UDP port number to control which broadcast packets will be converted.
Example
The following configuration converts multicast traffic for the multicast group 224.1.1.2 to broadcast traffic using the broadcast address 10.1.1.255 and UDP port 5000:
interface ethernet 0 ip multicast helper-map 224.1.1.2 10.1.1.255 101 ip pim dense-mode ...
Get CISCO IOS in a Nutshell now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.