This document discusses BOOTP and DHCP protocols. It provides objectives that will be covered, including the types of information required by systems on boot-up and how BOOTP and DHCP operate. BOOTP provides IP addresses and other network configuration details, while DHCP provides static and dynamic address allocation manually or automatically. The document includes figures illustrating operations, packet formats, and state diagrams for both protocols.

1. Chapter 16
Host Configuration:
BOOTP and DHCP
Objectives
Upon completion you will be able to:
• Know the types of information required by a system on boot-up
• Know how BOOTP operates
• Know how DHCP operates
• Understand the differences between BOOTP and DHCP
• Understand the DHCP transition state diagram
TCP/IP Protocol Suite 1

2. 16.1 BOOTP
The Bootstrap Protocol (BOOTP) is a client/server protocol that
configures a diskless computer or a computer that is booted for the first
time. BOOTP provides the IP address, net mask, the address of a default
router, and the address of a name server.
The topics discussed in this section include:
Operation
Packet Format
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3. Figure 16.1 Client and server on the same network
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4. Figure 16.2 Client and server on two different networks
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5. Figure 16.3 Use of UDP ports
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6. Figure 16.4 BOOTP packet format
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7. Figure 16.5 Option format
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8. Table 16.1 Options for BOOTP
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9. 16.2 DHCP
The Dynamic Host Configuration Protocol (DHCP) provides static and
dynamic address allocation that can be manual or automatic.
The topics discussed in this section include:
Static Address Allocation
Dynamic Address Allocation
Manual and Automatic Configuration
Packet Format
Transition States
Exchanging Messages
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10. Note:
DHCP provides static and dynamic
address allocation that can be manual
or automatic.
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11. Figure 16.6 DHCP packet
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12. Table 16.2 Options for DHCP
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13. Figure 16.7 DHCP transition diagram
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14. Figure 16.8 Exchanging messages
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