The HADB management system is dependent on UDP Multicast messages on multicast address 220.127.116.11. If these messages cannot get through, the createdomain command fails with the following message:
The management agents could not establish a domain, please check that the hosts can communicate with UDP multicast.
Possible causes include:
The agents are running on hosts with several network interfaces on different subnets.
There is a switch on the network that does not forward multicast messages.
There is router on the network that does not route multicast messages with the address 18.104.22.168.
Multicast messages are disabled in the operating system (for example, on Solaris 10).