User's Manual

How does a Device Obtain an IP Address and Subnet Mask? 75
See Table 4 for an example about how a network (only four computers
represented) and a Access Point might be configured.
Table 4 IP Addressing and Subnet Masking
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 Acces Point can obtain an address from a DHCP server on the current
network..
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.
Auto-IP Addressing Network devices use automatic IP addressing if they are configured to acquire
an address using DHCP but are unable to contact a DHCP server. Automatic
IP addressing is a scheme where devices allocate themselves an IP address at
random from the industry standard subnet of 169.254.x.x (with a subnet mask
of 255.255.0.0). If two devices allocate themselves the same address, the
conflict is detected and one of the devices allocates itself a new address.
Automatic IP addressing support was introduced by Microsoft in the
Windows 98 operating system and is also supported in Windows 2000.
Device IP Address Subnet Mask
PC 1 192.168.100.8 255.255.0.0
PC 2 192.168.201.30 255.255.0.0
PC 3 192.168.113.155 255.255.0.0
PC 4 192.168.002.230 255.255.0.0
Access Point 192.168.002.72 255.255.0.0