AirLive RS-1200 - Manual (Page 105)

105
Chapter 10
Virtual Server
The real IP address provided from ISP is always not enough for all the
users when the system manager applies the network connection from ISP.
Generally speaking, in order to allocate enough IP addresses for all
computers, an enterprise assigns each computer a private IP address, and
converts it into a real IP address through RS-1200’s NAT (Network Address
Translation) function. If a server that provides service to WAN network is
located in LAN networks, external users cannot directly connect to the
server by using the server’s private IP address.
The RS-1200’s Virtual Server function can solve this problem. A Virtual
Server has set the real IP address of the RS-1200’s WAN network interface
to be the Virtual Server IP. Through the Virtual Server function, the RS-1200
translates the Virtual Server’s IP address into the private IP address in the
LAN network.
Virtual Server owns another feature know as one-to-many mapping. This is
when one real server IP address on the WAN interface can be mapped into
four LAN network servers provide the same service private IP addresses.
This option is useful for Load Balancing, which causes the Virtual Server
to distribute data packets to each private IP addresses (which are the real
servers) by session. Therefore, it can reduce the loading of a single server
and lower the crash risk. And can improve the work efficiency.