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TCP/IP Networking
Outline

 

1. Tracing IP Packets Around the World

u Seeing is believing

u Measuring response times

In class Demonstration: Using ICMP for learning and diagnostics

2. Introduction and Overview

u Based on RFC 1180 for consistency and common reference

u Key concepts

u What do all the components do

u Benefits of Layered Architectures

- TCP

- IP

- UDP

- ARP

u IP Addressing Overview

u Applications

RFC1080: The TCP/IP tutorial

3. Grasp TCP/IP Architecture and Resources

u Understanding the mistakes of the past to plan for the future

u Identify the resources which will make your life easier

u Learn from the case study examples

u Identify the committees and how to fill in the appropriate forms and permissions

u A comparison of NT, UNIX and other Network Operating systems

In class Demonstration: Setting up a multi-homed router

4. TCP/IP and OSI

u Protocol layering

u Why multiple protocols?

u Mapping TCP and OSI

u Similarities rather than differences

u Viewing TCP as the OSI Transport Layer

u Differences between IP and X.25

In class Discussion: The real differences - Religion vs. Politics

5. Internet Addresses

u Internet addressing and route management

u Internet address concept

u Addressing - Classes of IP addresses

- Assigning your IP addresses

- Supernet and subnet

- Subnet masking

- ARP

- RARP

u Broadcast and reserved addresses

In class Exercise: Using CIDR to consolidate several class C licenses

6. IP: Internet Protocol

u Connectionless delivery system - Benefits & Risk analysis

u Internet datagram

u Routers

u Fragmentation

u Internet Control Message Protocol (ICMP)

In class Demonstration: X-RAY the IP header for traffic optimisation

7. TCP: Transmission Control Protocol

u Providing a Connection oriented service

u Multiplexing, Reliability and Flow Control

u Sliding Windows

u Ports, connections and end points

u Karns Algorithm

u Silly Window Syndrome and Nagle

u Resource reSerVation Protocol (RSVP)

In class Demonstration: Watching the network optimisation, by causing and overcoming congestion

8. UDP: User Datagram Protocol

u The need for a UDP

u Encapsulation

u The UDP Protocol

u Ports, Multiplexing and end points

u Stacks that use UDP

In class Demonstration: Why many applications benefit from the connectionless UDP

9. Internetworking Design

u Bridges, Routers & Switches

u Router Protocols

u TAG Routing

u Layer 3 Switches

u Layer 4 Brouting

In class Project: Design a network where each of the components are optimised

10. TCP/IP - Application Level Protocols

u UNIX Application Layer Protocols

u MS Windows application Layer

u TELNET

u Network File Systems (NFS)

u Simple Mail Transfer Protocol (SMTP)

u File Transfer Protocol (FTP)

u Trivial File Transfer Protocol (TFTP)

u HyperText Transfer Protocol (HTTP)

u Simple Network Management Protocol (SNMP)

In class Project: Use SNMP and TFTP to identify benefits, and introduce the concept of vulnerabilities

11. TCP/IP on Frame Relay, SDH and ATM

u Understanding the new services

u BroadBand Network Concepts

u ATM Adaptation Layer

u Private Virtual Networks

Costing Exercise: Use case study and EXCEL spreadsheet to demonstrate potential cost savings

12. Troubleshooting TCP/IP

u Symptoms and causes

u Fault isolation

u Troubleshooting tools

u Analyzers and Sniffers

u PING & tcpdump

u Windows NT Network Monitor

In class Demonstration: Using the tools to solve Real Life problems

13. Network Management

u Simple Network Managememt Protocol (SNMP)

u Remote Network Monitoring

u Commercial Integrated Network Management systems

In class Project: Comparison of representative commercial NM products

14. Security and Firewalls

u Assessing the risk

u Firewalls

u Proxies

u Data Encryption

u The need for policies

u The Air Gap

In class Demonstration: Vulnerabilities - how to find, minimise and proactive monitoring

15. Reviewing the Reference Disks

u DoD Specifications

u RFCs

u Diagnostic Tools

u Links to CERT, AUSCERT, X-Force etc.

u Dynamic Electronic Cross Reference Index

u FAQs

u HTML Links

u Troubleshooting Software

In class Demonstration: Using the Reference Disks - Documentation, Tools & Dynamic Electronic Cross Reference Index

16. TCP/IP: V6 The Future

u IPNG - the next generation

u TCP and Frame Relay

u IP and ATM

u Multimedia and TCP/IP

u Virtual reality

u Virtual TCP/IP

In class Discussion: Actions to take today to minimise transition pains

 

Highlights | What You Will Learn | About the Instructor | Other Courses