3Com 2226 PLUS - Manual (Page 34)

34 C HAPTER 4: C ONFIGURING THE S WITCH
To detect its IP information using the automatic configu-
ration process, the Switch goes through the following
sequence of steps:
1 The Switch tries to configure itself with the default IP
address
169.254.x.y , where x and y are converted
from the last two bytes of its MAC address.
For example, if the MAC address is 08004E000102 , the
IP address would be 169.254.1.2 . This address is used
if the Switch is operating in a standalone mode, or no
other switches on the network have this IP address.
The Switch also assigns the subnet mask 255.255.0.0
(default class B mask) to itself.
2 If this default IP address is already in use on the
network, then the Switch detects this, and increments
the last byte of the MAC address by one to generate its
IP address.
The IP address would therefore become 169.254.1.3 .
3 The Switch repeats step 2 until an unused IP address is
found.
3Com recommends using automatic IP configuration
only for the initial setup. Once you gain access to the
console, you should assign an IP address to the Switch
(either by using DHCP or assigning a static IP address) to
ensure successful communication between the Switch
and other network devices.
IP Setup
To set the IP address for the Switch:
1 Click Administration, then IP Setting on the menu. The
IP Settings screen appears. Follow the IP Setup Wizard
to complete the setup.
This wizard can also be used to set system name,
location and contact information.
Figure 11 IP Settings Screen