EncartaLabs

Troubleshooting ACLs with Wireshark

( Duration: 1 Day )

The goal of Troubleshooting ACLs with Wireshark training course is to provide Participants with a foundation in Wireshark and how to implement it in real-world troubleshooting situations. This course demonstrates how to troubleshoot DNS, Trivial File Transfer Protocol, and TCP on a typical network. Troubleshooting ACLs with Wireshark is designed for someone new to the Cisco CCNA material or the server administrator who does occasional troubleshooting.

COURSE AGENDA

1

The OSI Model

  • Introduction
  • Network Protocols
  • OSI Model
  • OSI Model and Protocols at Each Layer
  • OSI Model and Addressing at Each Layer
  • Encapsulation: Application Layer
  • Encapsulation: Transport Layer
  • Encapsulation: Network Layer
  • Encapsulation: Data Link Layer
  • Encapsulation: Physical Layer
  • Transport Layer Protocols
  • TCP 3-Way Handshake
  • TCP 4-Way Disconnect
  • UDP – Port Number Changes
2

Wireshark Basics

  • Segment, Packet, and Frame
  • Complete Datagram
  • Wireshark Overview
  • Ping Capture
  • Capturing a Website and Using Filters to Identify the TCP 3-Way Handshake
  • Capturing a More Complex Website
3

Access Control List (ACL) Basics

  • Layers Used in Access Control Lists
  • Access Control List (ACL) Types
  • Access Control List (ACL) Syntax
  • Access Control List Examples
  • Scenario
  • Demonstrating ACLs
  • Setting Up Globomantics ACLs
4

TroubleSshooting TRIVIAL FILE TRANSFER PROTOCOL and DNS Through an ACL

  • Globomantics Scenario
  • Troubleshooting TRIVIAL FILE TRANSFER PROTOCOL and DNS with Wireshark
  • Showing DNS Being Blocked by the ACL in Wireshark
  • Adding an ACL Rule to Allow DNS
  • Checking That Our New ACL Rule Works with DNS
  • Using Wireshark to Troubleshoot TRIVIAL FILE TRANSFER PROTOCOL
  • Adding an ACL Rule to Allow TRIVIAL FILE TRANSFER PROTOCOL
  • Checking That Our New ACL Rule Works with TRIVIAL FILE TRANSFER PROTOCOL

Encarta Labs Advantage

  • One Stop Corporate Training Solution Providers for over 3,500 Modules on a variety of subjects
  • All courses are delivered by Industry Veterans
  • Get jumpstarted from newbie to production ready in a matter of few days
  • Trained more than 20,000 corporate candidates across india and abroad
  • All our trainings are conducted in workshop mode with more focus on hands On

View our other course offerings by visiting www.encartalabs.com/course-catalogue

Contact us for delivering this course as a public/open-house workshop for a group of 10+ candidates at our venue

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