Chapter 4 Core TCP/IP Protocols

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Presentation transcript:

Chapter 4 Core TCP/IP Protocols

Chapter 4 Overview Understanding TCP and UDP Exploring Common Protocols Understanding Ports 2

Understanding TCP and UDP Connection-oriented Uses three-way handshake UDP Connection-less Uses best-effort 3

Exploring TCP Three-way handshake 4

Exploring TCP Similar to phone call 5

Exploring TCP TCP sliding window 6

Exploring UDP Does not provide guaranteed delivery No three-way handshake Unreliable Best-effort delivery Commonly used with streaming audio and video 7

Exploring Common Protocols ARP Translates IP address to a MAC 8

ARP Command Shows contents of ARP cache 9

Exploring Common Protocols HTTP and HTTPS 10

Exploring Common Protocols FTP and TFTP 11

Exploring Common Protocols Telnet Remote Desktop Services 12

Exploring Common Protocols Encryption protocols Secure Sockets Layer (SSL) Transport Layer Security (TLS) Secure Shell (SSH) Internet Protocol Security (IPSec) 13

Exploring Common Protocols Mail protocols SMTP POP3 IMAP 14

Exploring Common Protocols Domain Protocols LDAP Kerberos 15

Exploring Common Protocols Tunneling Protocols PPTP L2TP 16

Exploring Common Protocols SNMP IGMP ICMP 17

Understanding Ports TCP and UDP use port numbers Computes listen on specific ports 18

Understanding Ports Controlling port traffic with a firewall 19

Understanding Ports Port ranges Assigned by IANA 20

Understanding Ports Common ports 21

Understanding Ports Common ports 22

Understanding Ports Mapping internally used ports and protocols 23

Chapter 4 Summary Understanding TCP and UDP Exploring Common Protocols Understanding Ports 24