Zhone 2000 ユーザーガイド

Multicasting differs from broadcasting in that a receiver must join a multicast 
group to receive group messages. Each multicast group has its own group 
address, which is a Class D IP address—224.0.0.0—239.255.255.255.

Type “M” on the Main menu to display the Multicast Configuration menu. 

The Multicast Configuration menu contains commands to configure IP 
Multicast Routing. The IAD displays the Multicast Configuration menu only 
when DHCP Server is enabled and the IAD has been reset.
When you have completed multicast configuration, reset the IAD for the 
changes to take effect.

To enable or disable global IP Multicasting, follow the steps below:

Type “E” on the Multicast Configuration menu (Figure 4.100) to select 

Enable/Disable Global IP Multicasting. 

Type “E” to enable IP multicasting, or type “D” to disable it. The IAD 

saves the new configuration and displays the Multicast Configuration menu.

You must enable Multicast Routing to send, receive, and route IP multicast 
packets. Otherwise, multicast packets are dropped automatically.

− Dense Mode by Port

Type “P” on the Multicast Configuration menu to configure Protocol-

Independent Multicast (PIM) version dense mode by port and interface. The 

IAD displays the available interfaces and prompts you to select one as 

shown in Figure 4.33.

Type the option number to select the interface. The IAD displays the 

port table for this interface and prompts you to select a port.

Type the port to configure and press Enter. The IAD displays the PIM status 

for this port and prompts you to enable or disable PIM.