Black Box EncrypTight, ET1000A, ET0010A manual Adding a Multicast Policy, Multicast network example

Adding Layer 3 IP Policies

Adding a Multicast Policy

In a multicast network, one or more networks send unidirectional streams to multiple destination networks. The multicast routers detect the multicast transmission, determine which nodes have joined the multicast network as destination networks and duplicate the packet as needed to reach all multicast destination networks.

Figure 76 Multicast network example

The policy for the example in Figure 76 specifies Network A as the send network. This policy also specifies networks B and C as the destination or receive networks. Networks B and C are set up in the multicast routers as members of the multicast network. PEP 1 encrypts multicast traffic sent from Network A to the multicast IP address. PEPs 2 and 3 decrypt data received at Network B and C that originates from the multicast network IP address.

When you create a multicast policy, you must select a ETKMS and specify a multicast network IP address. At least one network set must be selected as either send only or send and receive, and at least one network set must be selected as either receive only or send and receive.

EncrypTight User Guide 199