TCP/IP Networking
5-day training seminar, $3,095


In this course, you will gain the essential knowledge and skills required to set up, configure, support, and troubleshoot your TCP/IP-based network. Our expert instructors and extensive hands-on labs will prepare you to face and overcome the challenges of today's complex networks. This course—the longest running of its kind in the industry—also prepares you for more specialized courses in network security, wireless integration, and Voice over IP (VoIP) as well as for product-specific training such as Cisco, Avaya, and Microsoft.

What You Will Learn

  • Describe the essential elements of the TCP/IP protocol suite
  • Explain the functions of various devices in a TCP/IP network
  • Subnet an IP network using variable-length subnet masking (VLSM), calculating appropriate subnet values to improve network efficiency
  • Describe different TCP/IP protocols—ARP, IP, ICMP, TCP, UDP, and so forth—including their functions and relationships
  • Examine IP routing and the protocols that support it, such as RIP, EIGRP, OSPF, and BGP
  • Explain how applications like FTP, HTTP, Telnet, and others work in a TCP/IP network
  • Analyze UDP and TCP application traffic to identify normal versus abnormal sessions
  • Automate address assignment and name resolution using DHCP and DNS
  • Analyze multicasting and Voice over IP (VoIP) traffic to determine how these protocols affect network performance
  • Troubleshoot problems at each layer of a TCP/IP network using a variety of tools, including a protocol analyzer, traceroute, ping, and DNS and ARP cache manipulation
  • Analyze ICMP variation reports to determine the cause of a network failure
  • Explore network security protocols, including PPTP, L2TP, IPSec, SSL, TLS, and
  • SSH
  • Analyze network traffic to determine security risks
  • Explore the functions of IPv6 and its related protocols

Who Should Participate

TCP/IP Network training is ideal for professionals responsible for designing, installing, configuring, and maintaining TCP/IP networks. Professionals who needs to understand TCP/IP protocol structures and functions will also benefit from this course. The course will prepare participants for higher level network training.


1. History and Standards

  • Origin of TCP/IP
  • ARPANET Requirement Documents
  • Collaborative Network Requirements
  • One Protocol?
    • Peer-to-Peer Protocols: Actual Flow
    • Peer-to-Peer Protocols: Effective Flow
  • Documentation and RFCs
  • RFC Categories

2. TCP/IP Numbering Systems

  • Data Representation
    • Numbering Systems
    • Number Grouping
  • Converting Binary or Hexadecimal to Decimal
    • Practice Converting Binary to Decimal
  • Converting Decimal to Binary or Hexadecimal
    • Example 1: Converting 1500 to Binary
    • Example 2: Converting 1500 to Hexadecimal
    • Decimal Conversions
  • Converting Hexadecimal to Binary and Binary to Hexadecimal
  • Counting
  • Guidelines for Determining Base

3. Local Signaling

  • Local Signaling
  • Ethernet Addressing
    • Unicast
    • Multicast
    • Broadcast
  • The Ethernet Header
    • Protocol Type
    • Size Limits

4. IP Addressing

  • A Logical Address
  • IP Address Structure
    • Dotted Decimal Notation
    • Classful Addressing
    • Reserved Addresses
    • Masking
    • Comparing Addresses
    • Prefix Notation
  • Private Addressing
  • Network Address Translation
  • Address Assignment
    • One Flat Network
    • IP Address Blocks

5. IP Subnets

  • A Logical Address
    • Subnetting
    • Required Information
  • Multiple Subnets
    • Determining the Mask
    • The First Subnet
    • Laying out the Subnets and their Addresses
    • The Second Subnet
    • The Third Subnet
  • Planning for Growth
    • The Current Picture
    • Sequential Allocation Error
    • A Future Fourth Subnet
    • With The Fourth Subnet
  • Subnetting Subnets

6. Address Resolution Protocol

  • Address Mapping
  • ARP Cache
  • ARP Restrictions
  • ARP Message Fields
    • Hardware and Protocol Types
    • Hardware and Protocol Address Lengths
    • Operation
    • Addresses
    • Exception
    • LAN Fill
  • How Else Can ARP Help?
  • ARP Commands

7. Multicasting

  • What is Multicasting?
    • Uses of Multicasting
    • Multicasting Overview
    • Some Reserved IP Multicast Addresses
  • Multicast Groups and Internet Group Management Protocol (IGMP)
    • Multicast Groups
    • IGMP
    • IGMP Restrictions
    • Multicast Routing
  • Mapping a Class D IP Address to an Ethernet Multicast Address
  • How Does It All Work Together?

8. Internet Protocol

  • TCP/IP Protocols
  • Self-Healing Networking
  • IP Header
    • IP Header Layout
    • Type of Service Byte
    • Differentiated Services
    • Total IP Length
    • Datagram ID Number
    • Fragmentation
    • TTL
    • Protocol Field
    • IP Header Checksum
    • IP Address
    • IP Option Fields
  • IP Sample Data Exchanges

9. IP Routing

  • TCP/IP Protocol
  • Routing Function
  • The IP Routing Algorithm
  • The Routing Table
    • Routing Table Basics
    • Automatic Table Maintenance
  • Exterior or Interior Protocol
    • Interior Gateway
    • Exterior Gateway
  • Routing Information Protocol
    • RIP Routing Information Basics
    • RIP Route Loops
    • OSPF vs. RIP 1 vs. RIP 2
  • Layer 3 Switching

10. Simple Sessions with User Datagram Protocol

  • TCP/IP Protocols
  • Host-to-Host Layer Categories
    • Connectionless Protocol
    • Connection-Oriented Protocol
    • Low Overhead vs. Reliability
  • UDP Header
    • UDP Header Layout
  • Port Basics
  • UDP Ports and Sockets
  • Applications
  • UDP Sample Data Exchanges

11. Robust Sessions with TCP

  • TCP/IP Protocols
    • Reliable Transport Services
    • Introduction to TCP
  • TCP Headers
    • TCP Source and Target Ports
    • Source Sequence Number
    • Acknowledgment Sequence Number
    • TCP Header Length
    • Session Bit Flags
    • Flagging a Session
    • Sender Window Size
    • TCP Checksum
    • Urgent Data Size
    • Option Fields
    • Maximum Segment and Window Size
  • TCP Three-Step Handshake
    • As the Session Flows
  • Congestion and TCP
    • Primary Cause
    • Secondary Cause
  • Four Step Session Shutdown
    • Normal End
    • Reset Session
  • TCP Sample Session

12. Auto Configuration

  • BootP and DHCP
  • Manual vs. Automatic Address Assignment
    • DHCP Basics
    • Before DHCP
  • DHCP New Lease Acquisition Process
    • DHCP Message Format
    • DHCP Discover
    • DHCP Offer
    • DHCP Request
    • DHCP Acknowledgment
  • DHCP Scopes and Options
    • IP Lease Renewal
  • DHCP in a Routed Network
  • Troubleshooting
    • The ipconfig /release Command
    • The ipconfig /renew Command
    • Multiple DHCP Servers

13. DNS: Names Instead of Numbers

  • DNS Overview
  • A Distributed Service
  • The DNS Tree
  • Top-Level Domains
    • Country Domains
  • Name Server
    • Primary and Secondary Servers
  • DNS Database
    • DNS Cache Feature
  • Resource Records
  • The Name Resolution Process
    • Name Query Packet
    • Name Query Response Packet
  • Reversing the Process
    • Name and Number Organizations
  • Dynamic DNS
  • Troubleshooting

14. Diagnostics and Error Reports via ICMP

  • ICMP Overview
  • ICMP Basics
  • ICMP Message Destinations
    • Silent Discard vs. Informed Discard
    • ICMP Messages
    • ICMP Echo Request (Type 8) and Response (Type 0)
    • Destination Unreachable (Type 3)
    • Redirecting Traffic with an ICMP Message (Type 5)
    • ICMP Time Exceeded Message (Type 11)
  • ICMP Sample Data Exchanges

15. Common TCP Applications

  • TCP/IP Protocols
  • Uses of Telnet
    • Telnet Option Negotiations
    • Telnet Protocol Options
  • File Transfer Protocol (FTP)
    • Multiple Sessions
    • FTP Commands
    • FTP Response Codes
  • E-mail
    • SMTP Commands
    • SMTP Response Codes
    • POP3
    • POP3 Transaction State
    • IMAP4
  • World Wide Web
  • Uniform Resource Locator (URL)
    • HTTP Requests and Responses

16. Common UDP Applications

  • TCP/IP Protocols
  • Trivial File Transfer Protocol (TFTP)
    • TFTP Transfer Process
    • TFTP Operation Codes
  • TFTP Sample Sessions
    • Read Session
    • Write Session
    • Error Session
  • Simple Network Management Protocol (SNMP) Basics
    • SNMP Manager Model
    • SNMP Agent Model
  • The Structure of Management Information
    • Management Information Base
    • Private MIBs
  • Remote Network Monitoring

17. VoIP

  • What is VoIP?
  • Why VoIP Instead of TDM Voice?
  • Uses for VoIP
    • Talk to Operator
  • Communication Characteristics
  • Protocol Standards
    • H.323
    • SIP
    • MGCP RFCs
    • H.248 MEGACO
    • Real-Time Transport Protocol
    • G.7xx Standards
  • How VoIP Works
    • Gatekeeper Call Server
    • Hard Phone vs. Soft Phone
    • Dial Tone
    • Security
  • LANs and WANs
    • VoIP and LANs
    • VoIP and WANs
    • Bandwidth and QoS

18. Security

  • Protocol Limitations
    • C-I-A Triad
  • Threats
    • Disaster Threats
    • Attack Threats
    • Attacks
    • Malicious Code
    • Types of Attackers
  • Solutions
    • Securing Systems
  • User Authentication
  • Security-Related Protocols and IPSec
    • IPSec Components
    • IPSec Session
  • Virtual Private Networks (VPNs)
    • Establishing a VPN Connection
    • PPTP Encapsulation
    • PPTP Encryption
    • L2TP Encapsulation
    • L2TP Encryption

19. IPv6

  • Overview
  • Addressing
    • IPv6 Address Categories
    • IPv6 Address Formats
    • Interface Identification
    • Interface Identifier
    • Address Type Identification
  • Header
    • Extension Headers
  • ICMPv6
    • Destination Unreachable
    • Packet Too Big
    • Time Exceeded
    • Parameter Problem
    • Echo Request and Echo Reply
    • Neighbor Solicitation
    • Neighbor Advertisement
    • Redirect Message
  • IPv6 DNS operation
    • DNS Sample Records
  • Routing Services and Protocols
    • Static Routing
    • RIPng
    • OSPFv3
    • MP-BGP (Multiprotocol extensions for BGP)
    • EIGRP for IPv6
  • Internet2

Dates, Locations and Registration


Understanding Networking Fundamentals

Recommended Follow-on Courses:

VoIP Foundations


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Hands-On Excercises

Lab 1: Numbering Systems

  • Decimal Equivalents for Binary Sequences
  • Converting Binary Numbers to Decimal
  • Converting Decimal Numbers to Binary
  • Converting Hexadecimal Numbers to Decimal
  • Converting Decimal Numbers to Hexadecimal

Lab 2: Lab Setup and Ethernet Header Analysis

  • Preparing to Begin Installation
  • Modifying Your System Configuration
  • Ethernet Header Analysis

Lab 3: IP Addressing and Subnetting

  • Essential IP Addressing and Subnetting
  • Fixed Length Subnet Masking
  • Variable Length Subnet Masking

Lab 4: Address Resolution Protocol

  • Viewing Your ARP Cache
  • Manually Changing ARP Cache Entries

Lab 5: Multicasting

  • Capturing Various Multicast Frames
  • Recording RIPv2 Multicast Addressing Information
  • Recording 802.1 Multicast Addressing Information
  • Recording Protocol Independent Multicast Addressing Information
  • Recording IGMP Multicast Addressing Information

Lab 6: Troubleshooting the Network Access Layer

  • Learning About Your Network Interface Layer Troubleshooting Tools

Lab 7: IP Processes

  • Capturing and Analyzing an IP Datagram
  • Manipulating the Time to Live
  • The Fragmented IP Datagram
  • Review of Important IP Protocol Information

Lab 8: Routing

  • Routing Begins at Home
  • Tracing the Route to Different Destinations
  • Viewing the Routing Table on the Cisco 1760 Router
  • Viewing the Routing Table on the Juniper J2300 Router
  • Viewing Routing Updates Using the Protocol Analyzer

Lab 9: Troubleshooting the Internetwork Layer

  • The First Steps
  • Changing Your Default Gateway
  • Pinging a Local Workstation
  • Pinging Server1
  • Correcting the Default Gateway Entry
  • Testing the Routing Process

Lab 10: UDP Transactions

  • Creating UDP Traffic
  • Creating Other UDP Traffic

Lab 11: TCP Processes

  • Opening EtherPeek and Setting a TCP filter
  • Beginning a TCP Transaction
  • Identifying the Three-Step Handshake
  • Answering General TCP Knowledge Questions

Lab 12: Troubleshooting the Host-to-Host Layer

  • Preparing to Troubleshoot the Host-to-Host Layer 1
  • Verifying the Operation of a UDP Application
  • Determining the Cause of Error
  • Preparing to Verify the Operation of a TCP-Based Application
  • Starting a TCP Application
  • Determining the Error

Lab 13: DHCP Process

  • Preparing to Examine the DHCP Process
  • Changing Your Configuration to Use DHCP to Obtain an IP Address
  • Determining Your Assigned DHCP Address
  • Releasing Your Assigned Address
  • Viewing the DHCP Discover Packet
  • Viewing the DHCP Offer Packet
  • Viewing the DHCP Request Packet
  • Viewing the DHCP ACK Packet
  • Reviewing a Release Packet

Lab 14: Domain Name System (DNS)

  • Preparing to Examine the DNS Process
  • Creating a DNS Query
  • Viewing Your DNS Request
  • Viewing Your DNS Response
  • Viewing a Zone Transfer
  • Viewing the Zone Transfer Using Wireshark
  • Performing the Zone Transfer Process

Lab 15: ICMP Messaging

  • Preparing to Examine ICMP Messages
  • Using Ping: Echo Request and Echo Response
  • Performing Longer Pings
  • Considering ICMP Variation Reports: Fragmentation
  • Considering ICMP Variation Reports: Port Unreachable
  • Considering ICMP Variation Reports: Destination Net Unreachable
  • Considering ICMP Variation Reports: Time to Live Failure
  • Explaining the Formatted Packet Dump

Lab 16: TCP Applications

  • Telnet
    • Preparing to View a Telnet Session
    • Starting a Telnet Session
    • Viewing a Telnet Session
  • FTP
    • Preparing to Analyze an FTP Session
    • Completing an FTP Session
    • Viewing the Captured FTP Session
  • HTTP
    • Preparing to Analyze an HTTP Session
    • Completing an HTTP Session
    • Viewing the HTTP Session
    • Viewing a Small File Being Displayed
    • Viewing a Large File Being Displayed
    • Viewing a Large File Being Downloaded
    • Cleaning Up

Lab 17: UDP Applications

  • Preparing to View a TFTP Session
  • Creating a TFTP Session
  • Viewing the TFTP Session
  • Preparing for the UDP Multicast Demonstration
  • Starting Your Multicast Application
  • Viewing the Captured UDP Multicast Information
  • Cleaning Up

Lab 18: Voice over IP

  • Preparing for Voice over IP
  • Placing a Call
  • Watching the Call Process

Lab 19: Internet Protocol version 6 (IPv6)

  • Configuring Your Workstation for IPv6
  • Verifying Your IPv6 Configuration
  • Using netsh to Manage IPv6
  • Using Ping for IPv6
  • Using nslookup and IPv6
  • Removing IPv6

Lab 20: Troubleshooting the Classroom Network

  • Solving the Classroom Network Problem

Registration Fees

The per student registration fee for the hands-on classroom session is $3,095, and includes the seminar, course materials, and morning and afternoon refreshments.

Training begins at 8:30 AM each day and concludes at 4:30 PM unless otherwise directed. Please arrive early on the first day to sign-in and meet fellow attendees. If you register less than one week in advance of a class, please bring your confirmation letter. Business casual attire is appropriate.

On-demand training is for professionals who prefer to develop the skills they need on their time and at their pace. You’re no longer limited to one schedule. With the ability to start, stop and rewind the lessons, even the most time-strapped individuals needs will be met because the material is always waiting for you—right where you left off. You’ll receive the same instructional design and topical, results-oriented course content we use for our instructor-led courses. Your course is available 24 hours a day, 7 days a week to fit your schedule.

Per person registration fee for the On-demand session is $895.

Register securely online with confidence or please call (708) 246-0320.

Seminar Schedule
May 17-21, 2021 8:30 AM-4:30 PM ET Virtual Classroom
Jun 21-25, 2021 8:30 AM-4:30 PM ET Virtual Classroom
Jul 26-30, 2021 8:30 AM-4:30 PM ET Virtual Classroom
Aug 2-6, 2021 11:30 AM-7:30 PM ET Virtual Classroom
Aug 16-20, 2021 8:30 AM-4:30 PM ET Virtual Classroom
Sep 20-24, 2021 8:30 AM-4:30 PM ET Virtual Classroom
On Demand Access for 90 Days Online

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Terms & Conditions

Seminar provider is not responsible for losses due to cancellation. In all circumstances, seminar provider's liability shall be limited to fees received.

Seminar agenda and assigned instructors are subject to change.

Public Training Terms & Conditions

Payment is due prior to the seminar.

Public seminar cancellation policy.  Registrants may cancel up to fourteen days in advance of the seminar start date for a full refund, less administrative fees of $500.  Or, you may transfer your registration to another member of your company at no additional charge.  Registrants canceling within fourteen days of the seminar will receive training credit, less administrative fees of $500 toward any other Resource Center seminar.

In the unlikely event that a seminar must be cancelled by seminar provider due to unavoidable circumstances, you will be notified at least two weeks prior to the seminar date, and your payment will be refunded.  Seminar provider is not responsible for losses due to cancellation including losses on advanced purchase airfares.  We strongly recommend that attendees traveling by air to attend the seminar purchase only refundable tickets.