1

TCP/IP Protocol Suite Reference Sheet

IEEE 802.3 Ethernet II Frame Layout (units in bytes)

Type Protocol

0x0800 Internet Protocol, Version 4 (IPv4)

0x0806 Address Resolution Protocol (ARP)

0x8035 Reverse Address Resolution Protocol (RARP)

0x809B AppleTalk (Ethertalk)

0x8100 VLAN-tagged frame (IEEE 802.1Q)

0x86DD Internet Protocol, Version 6 (IPv6)

.... ..............

ARP Frame Layout

IP Datagram Layout (Header + Data Frames)

44 66

Hardware Type

Ethernet = 1

Protocol Type

IPv4 = 080016

2

UDP Packet Layout (Header + Data Frames)

TCP Packet Layout (Header + Data Frames)

IGMP Frame Layout

3

ICMP Frame Layout

HTTP

HTTP Frame Layout

4

5

HTTP Header Layout

HTTP General Headers

HTTP Request Headers

HTTP Response Headers

6

HTTP Entity Headers

DNS Frame Layout

DNS Protocol Header Section Layout (units in bits)

7

8

DNS Protocol Question Section Layout (units in bits)

DHCP (BOOTP) Frame Layout (1ine = 4 bytes)

Options Format:

DHCP Options :

9

TCP State Transition Diagram

DHCP State Transition Diagram