User guide

Chapter 3: Configuring the FN100
Page 3-2 Fast Network 100 User Guide
• Assigning a community name
3.1 ASSIGNING IP ADDRESSES
IP addresses for each port must be unique. IP addresses are divided into
classes based on what portion of the address is network or port
information. The address classes are A, B, and C.
• Class A addresses are used in very large networks that support many
ports. The first byte identifies the network and the other three bytes
identify the node. The first byte of a class A address must be in the
range 1-126. The address 100.125.110.10 would identify node
125.110.10 on network 100.
• Class B addresses are used for medium sized networks. The first two
bytes identify the network and the last two identify the node. The first
byte of a class B address must be in the range 128-191. The address
128.150.50.10 identifies node 50.10 on network 128.150.
• Class C addresses are used for small networks. The first three bytes
identify the network and the last byte identifies the port. The first byte
of a class C address must be in the range 192-223. The address
192.138.217.10 identifies node 10 on network 192.138.217.
The
ipaddr <PORT#> <IPADDR> command allows you to assign an IP
address to a port.
For example, ipaddr 6 192.138.217.40 would set the IP address of Port 6
to 192.138.217.40. LCM responds by displaying the IP address table, as
shown under the
ipaddr command on page 3-3.
NOTE
You can use the LCM erase command to erase all
configuration information on the next system reset.
If you are using a network management tool other than LCM,
refer to its accompanying documentation.
NOTE
Entering erase to erase the current FN100 configuration sets
the IP address on Port 1 to 192.0.2.1 (default) when the
FN100 is rebooted.