Hi, there
On HP-UX, I want to multicast packets on two different IP network repectively.
The two NIC are configured with two different IP. The routes are added with one default and one net for each IP . The multisender programs bind their own local IP, multireceiver programs add the membership with the same multicast address but different port and interface(IP). Normally, the pair of sender and receiver works correctly. When we pull out the network wired that the default route is configured, the multicast packets can not received on two network. However, when we pull out the network wired that do not configured default route, the packets can still be received with the two multireceiver, at this time, one of the IP can not pinged.
So the above test makes the following results:
1. The multicast has nothing to do with the local IP address, it only cares about the multicast address and port
2. The default route decides the multicast packets whether they can send out.

My question is how I can multicast the packets on the different IP network respectively. Once one of the network failed or its wired is pull out, the other network can still multicast normally. That means how I can implementate the dual network multiucasting,thanks.