The Add/Edit DBR (Distributed Bucket Rendering) Host dialog opens when you click Add on the Distributed Bucket Rendering rollout. It lets you add a host (or “satellite”) processor to use when you render using distributed buckets. As the text on the dialog reminds you, the new host is added to the text of the RAYHOSTS file.
Lets you enter a port number for the processor. This control is unavailable unless you turn off Use Default Port. When Use Default Port is off, the default port value appears in this field.
Enter the name or the numeric IP address of the processor you want to add.
When on, 3ds Max assigns a port number to the new processor. The Port Number control is unavailable while Use Default Port is on. Default=on.