Dhcp Addressing; How Does A Device Obtain An Ip Address And Subnet Mask; Static Addressing - 3Com OfficeConnect User Manual

Type Two
In larger networks, where there are more devices, the IP address
of '192.168.100.8' is, again, split into two parts but is structured
differently:
Part one ('192.168') identifies the network on which the
device resides.
Part two ('.100.8') identifies the device within the network.
This type of IP Address operates on a subnet mask of
'255.255.0.0'.
See Table 4 for an example about how a network (only four PCs
represented) and a Secure Router might be configured.
Table 4 IP Addressing and Subnet Masking in a Large Network
Device IP Address
PC 1 192.168.100.8
PC 2 192.168.201.30
PC 3 192.168.113.155
PC 4 192.168.2.230
Secure Router 192.168.2.72
Subnet Mask
255.255.0.0
255.255.0.0
255.255.0.0
255.255.0.0
255.255.0.0
82
How does a Device Obtain an IP Address and
Subnet Mask?
There are three different ways to obtain an IP address and the
subnet mask. These are:
Dynamic Host Configuration Protocol (DHCP) Addressing

Static Addressing

Automatic Addressing (Auto-IP Addressing)

DHCP Addressing

The Secure Router contains a DHCP server, which allows
computers on your network to obtain an IP address and subnet
mask automatically. DHCP assigns a temporary IP address and
subnet mask which gets reallocated once you disconnect from
the network.
DHCP will work on any client Operating System such as
®
Windows XP, Windows 98 or Windows NT 4.0. Also, using
DHCP means that the same IP address and subnet mask will
never be duplicated for devices on the network. DHCP is
particularly useful for networks with large numbers of users on
them.
Static Addressing
You must enter an IP Address and the subnet mask manually on
every device. Using a static IP and subnet mask means the
address is permanently fixed.