Multiple Home Configuration - D-Link DI-308 User Manual

DI-308 ISDN Remote Router

Multiple Home Configuration

Besides the IP address assigned to the LAN interface in the Network Configuration
menu, the LAN may have up to 3 additional IP interfaces. These additional IP
interfaces are referred to as MIP1 to MIP3. This type of configuration is known as a
multiple home configuration.
Multiple Home can be demonstrated by this example:
A company has 625 users (computers) all connected to one physical network using
Ethernet. However, the company only has one Class C IP network address,
202.100.160.0. This network address will only support 254 users. To solve the
shortage of IP address problem and to plan for future growth, the company applies
for and receives two more Class C IP network addresses, 203.101.161.0 and
204.102.162.0. This gives the company a total of 254 x 3 = 762 IP Addresses, which
it assigns to the computer users, with a few left over for future needs. Due to the
nature of IP networks, however, the users in one IP network domain (202.100.160.0,
for example) cannot communicate with users on a different IP domain
(203.101.161.0). Multiple home solves this problem. When you register the
additional IP network addresses in the Multiple Home Configuration menu on the
router, the router will route data between the three IP networks using the single
LAN.
In this router, multiple home configurations only apply to the LAN interface.
54