JUNOSe 9.1.x Multicast Routing Configuration Guide > Configuring IPv4 Multicast > Enabling IP Multicast

Enabling IP Multicast

In this implementation, IP multicast works on virtual routers (VRs). By default, IP multicast is disabled on a VR. To enable IP multicast on a VR, access the context for a VR, and then issue the ip multicast-routing command.

ip multicast-routing

• Use to enable IP multicast routing on the VR.
• By default, IP multicast is disabled on the VR. In the disabled state, all multicast protocols are disabled, and the VR forwards no multicast packets.
• Example

host1(config)#ip multicast-routing

• Use the no version to disable IP multicast routing on the VR (the default).