Students who can benefit from this course are network administrators and advanced system administrators who want hands-on troubleshooting experience.

• Configure a UNIX system as a router
• Configure a UNIX system to use classless interdomain routing (CIDR) or variable length subnet masks (VLSM)
• Configure the following on a UNIX system:
  

  network interfaces, Internet Protocol Multipathing (IPMP), Dynamic Host Configuration Protocol (DHCP), Domain Name Service (DNS), and Network Time Protocol (NTP)

• Describe network models and troubleshooting methodology
• Troubleshoot the Network Interface layer (link layer/data-link layer)
• Troubleshoot at the Internet (Network) layer
• Troubleshoot at the Transport layer
• Troubleshoot network applications such as active and PASV file transfer protocol (FTP), NTP, and DHCP

Module 1 - Describing Network Models

• Describe the Open System Interconnections (OSI) model
• Describe the TCP/IP model
• Describe troubleshooting technique

Module 2 - Using the Troubleshooting Methodology

• Describe the troubleshooting methodology
• Use the troubleshooting worksheet

Module 3 - Troubleshooting Interface Installations

• Troubleshoot interface installation configurations
• Troubleshoot interface parameters and other interface tunables

Module 4 - Troubleshooting IP Configurations

• Troubleshoot automatically assigned interface configurations
• Troubleshoot manually assigned interface configurations

Module 5 - Reviewing IP Address and Configuration Fundamentals

• Troubleshoot IP address and related configuration parameters

Module 6 - Understanding the Logical Interface

• Understand the Logical Interface

Module 7 - Reviewing ICMP

• Describe how ICMP works
• Understand ICMP common usage
• Explain how ICMP redirect messages are sent
• Use ICMP to secure a network

Module 8 - Troubleshooting Routing

• Troubleshoot routing problems
• Describe static routing
• Describe dynamic routing
• Explain the variable length subnet masks (VSLM)
• Explain the classless interdomain routing (CIDR)

Module 9 - Using Statistical Data

• Understand how to use statistical data for troubleshooting
• Describe the netstat utility

Module 10 - Reviewing IPMP Multipath Fundamentals

• Examine IPMP multipath use and configuration

Module 11 - Reviewing UDP Packets Fundamentals

• Describe UDP packets
• Describe UDP socket interactions

Module 12 - Reviewing TCP Packet Fundamentals

• Describe TCP packets
• Describe TCP socket interaction

Module 13 - Describing TCP Sequence Numbers

• Describe TCP sequence numbers
• Describe connection fundamentals

Module 14 - Reviewing TCP Data Flow

• Describe how to avoid congestion
• Describe window size
• Describe the Nagel algorithm
• Describe bulk transfer of data

Module 15 - Tracking TCP Circuit Establishment

• Track TCP circuit establishment with he TCP state model
• Describe TCP data flow tracking

Module 16 - Troubleshooting FTP

• Describe active FTP
• Describe passive (PASV) FTP

Module 17 - Troubleshooting NTP

• Troubleshoot NTP on a network

Module 18 - Troubleshooting DHCP

• Troubleshoot Dynamic Host Configuration Protocol (DHCP) on a network