SMC Networks SMC7204BRA manual Configuring Dynamic Host Configuration Protocol

Configuring Dynamic Host Configuration Protocol

You can create up to two pools. The pools can maintain

a combined total of 254 IP addresses. For example, you can configure only one pool with addresses in the range 192.168.1.2 through 192.168.1.255, or two pools with the following address ranges:

Pool 0: 192.168.1.2 through 192.168.1.128

Pool 1: 192.168.1.129 through 192.168.1.255

The same pool can be used for distributing IP addresses to your LAN PCs (connected via the Ethernet port), as long as these ports are in the same subnet. You may want to create a second pool if any of these circumstances apply:

•

•

Your LAN configuration includes two subnets.

You have only one subnet, but the addresses you want to distribute are not in a continuous range. (Alternatively, you can exclude particular addresses from distribution from a single pool; see page 50.)

The DHCP server will distribute addresses to the computers connected to a given device interface only when that interface

is in the same subnet as the pool addresses. For example, assume that the Ethernet interface is assigned IP addresses that place them in two different subnets, as shown:

Ethernet interface (eth-0): IP address	192.168.1.1
mask	255.255.255.0

With this configuration, you could create the following two pools:

Pool 0: 192.168.1.2 through 192.168.1.11

Pool 1: 192.168.2.2 through 192.168.2.2

The DHCP server would automatically distribute the Pool 0 addresses only to computers connected to the interface in the same subnet as these addresses-the LAN interface, eth-0.

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