Netopia R5000 Manual de usuario descargar pdf (Pagina 249)

Understanding IP Addressing B-11

Under certain circumstances, you may want 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 available 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 following ﬁgure shows a possible network conﬁguration exhibiting 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 R5000 Series Router), a

Netopia R5000 Series Router, and a number of other hosts. Router A maintains a link to the Internet and can

be used as the default gateway.

Internet

Router A

Router CRouter 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

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Netopia R5000 Manual de usuario Pagina 249