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Multicast Routing Through a BOVPN Tunnel

In this example we configure the BOVPN tunnel to enable multicast routing from a device at Site A to the trusted network at Site B. The multicast sender determines the multicast group IP address to send to. Listener applications can then join the multicast group to receive traffic sent to that multicast group IP address.

For the example, we assume the BOVPN tunnel between the two devices has already been configured.

For information about how to configure the tunnel in Fireware Web UI, see Set up a VPN Between Two Fireware v11.x Devices (Web UI).

For information about how to configure the tunnel in Policy Manager, see Set up a VPN Between Two Fireware v11.x Devices (WSM).

For more information about helper IP addresses, see Enable Multicast Routing Through a Branch Office VPN Tunnel.

Example Settings

These settings correspond to the settings shown in the screen shots used throughout this example.

SITE A (Firebox with Fireware 11.x) 

Trusted network IP address: 10.0.50.0/24

Existing tunnel: Tunnel_to_SiteB

Existing tunnel route: 10.0.50.0/24 <==> 192.168.100.0/24

SITE B (Firebox with Fireware 11.x)

Trusted network IP address: 192.168.100.0/24

Existing tunnel: Tunnel_to_SiteA

Existing tunnel route: 192.168.100.0/24 <==> 10.0.50.0/24

Multicast device at Site A

Multicast device network IP address: 10.0.50.3

Multicast group IP address: 232.43.211.234

Configure Multicast Routing for the BOVPN Tunnel at Site A

Enable and configure multicast routing for the BOVPN tunnel at Site A.

If you enable broadcast or multicast routing in more than one BOVPN tunnel, make sure that you use a different pair of helper IP addresses for each tunnel.

Configure Multicast Routing for the BOVPN Tunnel at Site B

Enable and configure multicast routing for the BOVPN tunnel at Site B.

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