User`s guide

3-6
Configuring
• Class A addresses are used in very large networks that support
many nodes. 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 node.
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.
• Class D addresses are used for multicasting. Each multicast
group has an unique multicast address. Bits 4-31 identify a
particular multicast group. The first 4 bits of a multicast message
contain 1110 which identifies the address as a multicast.
Multicast addresses range from 224.0.0.0 through
239.255.255.255.
To assign an IP address to a port:
1. Type: ipaddr <port range> <ip address>
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.
3.2.2 Deleting an IP Address
To delete an IP address:
1. Type: ipaddr <port range> 0.0.0.0 or clear
LCM responds by redisplaying the IP address table.