Multi-port VIP

Virtual IP (VIP) Multiport Services

A single VIP can support custom services with multiple port entries by creating multiple service entries under that VIP -- one service entry in the VIP for ewach port entry in the service. By default, you can use single-port services in a VIP. To be able to use multiple-port services in a VIP, you must first issue the CLI command:

# set vip multi-port

(Taken from the ScreenOS-5.3.0.pdf file.)

However, it looks like the Netscreen 25 has a limit of 64 total ports which can be assigned to a VIP. This means you cannot assign large-port-count services (like Netbackup) to a VIP, you have to burn a mapped IP (MIP).