This property specifies how daemons are to connect back to the NetBackup Client daemon (BPCD) as follows:

• Use default connect options (An option for individual hosts)

  Use the methods that are specified under Default connect options.

• Random port

  NetBackup randomly chooses a free port in the allowed range to perform the traditional connect-back method.

• VNETD port

  This method requires no connect-back. The Veritas Network Daemon (vnetd) was designed to enhance firewall efficiency with NetBackup during server-to-server and server-to-client communications. The server initiates all bpcd socket connections.

  Consider the example in which bpbrm on a media server initially connects with bpcd on a client. The situation does not pose a firewall problem because bpbrm uses the well-known bpcd port.