Справочник Пользователя для Netopia PN Series

Internet

Router A

Router C

Router B

a.b.c.0

a.b.c.16

a.b.c.1

a.b.c.2

a.b.c.248

a.b.c.249

a.b.c.128

a.b.c.129

Under certain situations, you may wish to 
create remote subnets from the limited 
number of IP addresses issued by your ISP 
or other authority. You can do this using 
connection profiles. These subnets can be 
nested within the range of IP addresses 
avaiilable to your network.

For example, suppose that you obtain the 
Class C network address a.b.c.0 to be 
distributed among three networks. This 
network address can be used on your main 
network while portions of it can be 
subnetted to the two remaining networks.

Note: The IP address a.b.c.0 has letters in 
place of the first three numbers to generalize 
it for this example.

The figure at left shows a possible network 
configuration following this scheme. The 
main network is set up with the Class C 
address a.b.c.0, and contains Router A 
(which could be a Netopia Router), a Netopia 
Router, and a number of other hosts. Router 
A maintains a link to the Internet, and may 
be used as the default gateway.

Routers B and C (which could also be 
Netopia Routers) serve the two remote 
networks that are subnets of a.b.c.0. The 
subnetting is accomplished by configuring 
the Netopia Router with connection profiles 
for Routers B and C (see the following table).