Public IP address for ERP system
A SAP BC consultant gives me a small system landscape for ERP 6.0 and its info. as following:
a. 1 Sol Man system, 1 ERP system for DEV, 1 ERP system for PRO.
b. The Sol Man Server is for the ENTIRE SAP TECHNICAL LANDSCAPE in the single company.
c. The entire SAP Landscape needs to be on a different SUBNET on a different Gigabit switch for optimum performance. The broadcast between 2 subnets will be handled via a router.
d. A router with VPN Capabilities and 2-3 static public IP addresses (THIS IS A MUST).
I don't know why I need 2-3 static public IP addresses if I don't public anything to Internet. Somebody tell me why?