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N203

N203: Networking with TCP/IP - 3 Days

Who Should Attend:

System support consultants, system administrators, software engineers, programmers, computer science students, and other IT professionals who wish to use and understand the working and use TCP/IP.

Prerequisites:

This module has no prerequisites.

Objectives:

This module helps participants appreciate the TCP/IP protocol suite used in both Unix and Windows NT and understand computer network architectures. It also enables participants to acquire an in-depth knowledge of the internal workings of different protocols in the TCP/IP protocol suite and how they are configured in Unix and Windows NT environments.

Topics covered include the OSI Reference Model, principles and operation of the Transmission Control Protocol (TCP) and Internet Protocol (IP), and protocols such as the Internet Control Message Protocol (ICMP), the internals of Unix network applications such as rlogin and telnet, and the Domain Name System (DNS).

Hands-on laboratory sessions will focus on setting and troubleshooting networks, coaxial and UTP cabling, setting up gateways and subnetting, and configuring the DNS.

Contents:

Networking Overview: Network Goals; Applications of Networks; Network Structure; Network Architectures; Layered Protocols; ISO Reference Model; Unix 4-layer Model.

TCP/IP Network Setup and Troubleshooting: Introducing the Internet Protocol Family; Setting Up Network Software; Monitoring Ethernet Traffic, Address Resolution Protocol (ARP); Maintaining TCP/IP Files; Security in a TCP/IP Environment; Expanding Your Network; Diagnosing Network Problems.

Internet Protocol (IP) and Routing: Internet Architecture and Philosophy; Purpose of Internet Protocol; The Internet Datagram; Internet Datagram Options; Internet Addresses; Routing In the Internet; Configuring Gateways; Table-Driven IP Routing; Default and Host-Specific Routes; Handling Incoming Datagrams; Establishing Routing Tables.

ICMP: The Internet Control Message System; ICMP Message Format and Delivery; Testing Destination Reachability; Report of Unreachable Destinations; Datagram Flow Control; Route Change Requests; Detecting Circular Routes; Reporting Incorrect Datagram Headers.

Windows Internet Naming Service (WINS).

Transmission Control Protocol (TCP): TCP Ports and Connections; Segments, Streams, and Sequence Numbers; Variable Window Size and Control; TCP Segment Format; TCP Checksum Computation; Acknowledgements and Retransmission; Timeout and Retransmission.

User Datagram Protocol (UDP): Features; Ports in UDP; UDP Header Format; Applications.

Network Applications : The Client-Server Model; A Simple Example: UDP Echo Server Remote Login; Internet Telnet Protocol; Electronic Mail (SMTP); File Transfer Protocol (FTP).

Domain Name System (DNS): Hierarchical Structure of Delegation of Authority for Names; Mapping domain Names to Addresses; Domain Name Server Message Format; Using Abbreviated Domain Names; Name Server Files; Standard Resource Record Format; DNS Configuration.

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