TRENDnet TDM-C400, Руководство пользователя

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Chapter 8. Configuring Dynamic Host Configuration Protocol
95
Configuring DHCP Server
Note
Before you begin, be sure to configure your PCs to accept DHCP
information assigned by a DHCP server. See “Quick Start Part 2
— Configuring Your Computers,” for instructions.
To set up DHCP server, you first define the ranges of IP addresses
that you want to be distributed to your PCs, called DHCP server
address pools.
Guidelines for creating DHCP server address pools
An IP address pool typically includes a range private addresses that
you define. LAN administrators often define private IP addresses for
use only on their networks. See “Overview of NAT” on page 117 for
an explanation of private IP addresses. You can also use DHCP
server pools to distribute multiple public IP addresses, if, for
example, these are to be shared among a larger set of LAN
computers.
You can create up to two DHCP server address pools. You can
define a single pool with addresses that can be assigned to your
LAN PCs (connected via the Ethernet port) and to a USB-
connected computer, as long you have assigned to the USB and
Ethernet interfaces static IP addresses that place them in the same
subnet. See Appendix A for an explanation of subnets.
For example, assume you assigned the following addresses to the
Ethernet and USB interfaces:
Ethernet interface (eth-0) : IP address 192.168.1.254
mask 255.255.255.0
USB interface (usb-0) : IP address 192.168.1.2
mask 255.255.255.0
Then you could create a single pool for assignment to all your PCs:
Pool 0 : 192.168.1.3 through 192.168.1.20
mask 255.255.255.0
You can create a second pool – which must be in a different subnet
than the first – if either of these circumstances apply:
f
You assigned static IP addresses to the device’s Ethernet
and USB interfaces that place them in different subnets
(note that this is not required).
f
Your LAN configuration includes two subnets. For example,
the following pool can be created to distribute IP addresses
over the Ethernet LAN interface, which is assigned IP
address 192.168.1.254 by default:
Pool 0 : 192.168.1.2 through 192.168.1.254
mask 255.255.255.0