5
NETWORK PROTOCOL OPERATION
This chapter covers the following topics:
■ IP Address Configuration
■ ARP Configuration
■ DHCP Configuration
■ Access Management Configuration
■ UDP Helper Configuration
■ IP Performance Configuration
IP Address
Configuration
IP Address Overview IP Address Classification and Indications
An IP address is a 32-bit address allocated to the devices which access the Internet.
It consists of two fields: net-id field and host-id field. There are five types of IP
address. See
Figure 21.
Figure 21 Five Classes of IP Address
Class A, Class B and Class C are unicast addresses, while Class D addresses are
multicast addresses and Class E addresses are reserved for special applications. The
first three types are commonly used.
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
0
1 0
1 1 0
1 1 1 0
1 1 1 1 0
net-id
net-id
net-id
Multicast address
Reserved address
host-id
host-id
host-id
Class A
Class B
Class C
Class D
Class E
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