TCP/IP Introduction

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Course Overview

TCP/IP has been deployed on virtually every type of hardware and software platform available today and forms the backbone of the Internet. As a result, this popular protocol suite has become the standard for building multivendor intranets and internets.

This course provides a comprehensive technical introduction to TCP/IP. Extensive hands-on exercises provide the practical experience needed to configure a host, employ TCP/IP tools, use application services, and access TCP/IP-based internetworks.

Audience

This course is valuable for anyone working with TCP/IP protocols or involved in developing or migrating to TCP/IP networks or accessing Internet services. Familiarity with local area network concepts and either Windows or UNIX is assumed.

Skills Gained

• Configure hosts and access internetworks using TCP/IP protocols
• Identify the role of each TCP/IP component
• Use all major TCP/IP application services, including: FTP, TELNET, HTTP and NFS
• Avoid common internetworking problems
• Troubleshoot TCP/IP networks using protocol analysis techniques
• Employ popular Internet/intranet tools: FTP, Web browsers, WWW and others

Course Outline

Introduction and Overview

Introducing TCP/IP networks

• What TCP/IP provides: key application services and multivendor capabilities
• TCP/IP and the Internet
• How Internet RFCs and STDs affect TCP/IP

Introducing TCP/IP protocol architecture

• Protocol layering concepts
• TCP/IP layering
• Components of TCP/IP networks

The Internet Protocol (IP)

Internet Layer functions

• Fundamental internetworking concepts
• Connecting networks
• Providing Physical Layer independence
• Internet addressing: IP address classes A, B, C, D, E

Address resolution

• Resolving MAC addresses with ARP
• Avoiding duplicate IP addresses with RARP, BOOTP and DHCP

IP address resolution

• Building your own IP network
• NIC-registered addresses
• Using private IP addresses: application proxy firewalls
• IPv6

IP on different physical networks

• IP on non-Ethernet LANs: SNAP and LLC
• Using IP on WANs
• IP on ATM
• IP on DSL

Internetworking with IP Routers

Implementing routed networks

• The role of the IP router
• Common IP routing protocols: RIP, OSPF
• Troubleshooting router problems

Going beyond the intranet

• Subdividing IP networks (subnetting)
• Control messages on IP networks: ICMP
• Subnetting and supernetting calculation formulas
• Classless Inter-Domain Routing (CIDR)
• Network Address Translation (NAT)

Transport and Protocols: TCP and UDP

Transport Layer fundamentals

• The role of the transport protocol
• Reliable vs. best-effort services

The Transmission Control Protocol (TCP)

• Providing a reliable data delivery with TCP
• Associating remote applications using port numbers and process addressing
• TCP packet structure and troubleshooting
• TCP performance issues

The User Datagram Protocol

• Connectionless protocol operation
• Providing reliability at the Application Layer

Applications and Management Protocols

Functions and operation of application protocols

• File transfer protocols: FTP, TFTP
• Network Virtual Terminal (TELNET)
• Employing DNS BIND
• SMTP, the basis of Internet mail
• Utilising workstation mail: POP3, IMAP4
• Examining the mechanisms of VoIP

Vendor implementations

• Sharing files with NFS
• NFS protocols: RPC, XDR, others
• TCP/IP for Windows Server 2003/NT and XP and UNIX

Managing TCP/IP networks

• SNMP management paradigm
• Simple Network Management Protocol (SNMP)
• The management database: MIB
• SNMP evolution: MIB I and II, RMON, SNMPv2, SNMPv3

Exploring Internet Services

Internet service access methods

• Permanent direct connection
• Building virtual private networks (VPNs) with PPP

Internet service tools

• Retrieving files using Anonymous FTP
• Using World Wide Web (WWW) tools

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