2.4. Connectivity Requirements

Your JBoss Enterprise Application Platform instances must operate in a network segment that is logically separated from any other network segment using a packet filtering mechanism. This packet filter must only allow incoming communication that meets the following criteria:

All outgoing communication from one of the JBoss Enterprise Application Platform instances must be allowed.

Each cluster node communicates with the other nodes by means of standard network sockets. Whenever this occurs the client side of each connection has a port number assigned to it by the host operating system from a range of ports that are reserved for client sockets. These ports are referred to as dynamic or ephemeral ports. They are only used by a connection until it is closed. Once the connection is closed the port is made available for use by other new client connections. Refer to your operating system documentation if you need to configure this port range.