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I am available for consulting and training on a wide variety of technical subjects including:

Cisco Hardware

Routers and Switches

Optical Networking

Wireless Networking

Network Security

CISSP preparation

Security Awareness

Network Penetration testing

MPLS

VoIP

DSL

Frame Relay

ATM

SONET

DWDM

T-Carrier

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

resources that CCNA students may find helpful.

 

Cisco On-Line Resources - IOS, Troubleshooting and CCNA test links.

CCNA Class Notes - My take on the key point of CCNA boot camp.

Subnetting and Binary Math - Including My 8 steps to Subnetting.

Essential CCNA Test Preparation - Practice test, Rack Rentals, Network Simulators, Books & Slides.

Additional CCNA Technologies and Study Aides - My OSI 7 Layer Song, OSI Resources, Access Control Lists, ISDN and Study Techniques.

Not Cisco - But Related Technologies - Ethereal & Linux

 

Cisco On-Line Resources

Extensive documentation on the features/commands of Cisco IOS:

IOS Command Reference, Volume 1: Addressing and Services, Release 12.3

IOS IP Command Reference, Volume 2: Routing Protocols, R 12.3

Cisco IOS IP Command Reference, Volume 3 of 4: Multicast, Release 12.3 T

Cisco IOS IP Command Reference, Volume 4 of 4: IP Mobility, R 12.3 T

 

 

Cisco Troubleshooting References:

 

Troubleshooting Cisco Catalyst Switches to NIC Compatibility Issues

Troubleshooting Ethernet Collisions

Troubleshooting Ethernet 10/100/1000Mb Half/Full Duplex Auto-Negotiation

Troubleshooting Ethernet IEEE 802.3

Troubleshooting LAN Switching Environments

Spanning Tree Protocol Problems and Related Design Considerations

Troubleshooting Serial Lines

Troubleshooting Frame Relay Connections

Troubleshooting TCP/IP

Troubleshooting Hardware and Booting Problems

Troubleshooting Router Crashes

 

    CCNA Test Description and Tutorials

Look on these pages for the tests objectives, test simulation and the location of the VUE and Prometric test centers!

Full CCNA test description: 

ICND1 CCNA test (partial):

ICND2 CCNA test (partial):

 

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CCNA Class Notes

Bob’s CCNA class summary (New - 640.802 test):  Download Bob's CCNA key points (pdf).

Bob’s CCNA class summary (Old - 640.801 test):  Download Bob's CCNA key points (pdf).

Bob's CCNA Simulator hints: Download Bob's CCNA Simulator Hints (pdf).

 

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Subnetting Basics and Binary Math

Subnetting Basics

 

Bob’s eight steps to subnetting success steps:

Download the subnetting process I explain in class here (pdf). 

Bob’s subnetting examples:  Download 30 subnetting problems here (pdf).

Great videos on subnetting: http://www.howtosubnet.com

Another take on subnetting: http://techtutorials.com/tutorials/networking/subnetting123.shtml

And still another site on subnetting: http://ns.ulatina.ac.cr/~fabblana/redes/tcpip/subnetting.pdf

Free Subnet Calculator

Make your own subnetting problems and check your work with this free calculator: http://www.boson.com/promo/utilities.htm

Decimal, Binary and Hex conversion

These pages will help you learn how to convert between decimal, binary and hexadecimal.

http://www.goshen.edu/compsci/mis200/decbinary.htm

www.newi.ac.uk/cunninghams/cs1/CS1_3.ppt

http://www.learn-programming.za.net/articles_decbinhexoct.html

http://www.permadi.com/tutorial/numHexToBin/

Free Decimal, Binary and Hex Calculator

Make your own conversion problems and check your work with this free calculator: http://www.pmaSoft.net

 

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Essential CCNA Test Preparation

CCNA slides & books On-Line

Technical resources hosted by others that may be gone soon!

DNS, How the Internet Runs, and TCP/IP videos: http://www.learntcpip.com/

CCNA & CCNP slides avalable on-line: http://iws.ccccd.edu/sbutler/courses.html

CCNA, CNNP & CCIE books on-line: http://www.ssuet.edu.pk/~amkhan/cisco/cisco.htm

Various CCNA preparation Resources That I Like

  Cisco users groups: http://dfw.cisco-users.org/other_cugs.htm

RouterGod is a humorous on-line publication about Cisco:  http://www.routergod.com

Probably the best practice test I have found: http://www.how2pass.com

Rent a rack of real Cisco routers for a little as $ 0.50 an hour: http://www.mindtechcom.com

Get a router simulator for as little as $20.00.  Search amazon.com for "ccna simulator" to find used prices on Bosons CCNA Simulator and the Sybex CCNA Virtual simulator.  Also, try the same search on E-Bay - but be careful buying on E-Bay.  You may have no recourse if you get ripped off!

 

 

 

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Additional CCNA Technologies and Study Aides

Miscellaneous CCNA links

These pages are a collection of resources that do not fall into a simple category, but help you prepare for many aspects of the CCNA exam.

http://www.antioffline.com/ccna/

http://www.internetworkexperts.net/resource-cisco.htm

http://www.certification-crazy.net/ccna_study_guides.htm

 Cisco Access Control Lists

These pages will help you learn how to create Cisco access control lists

http://www.networkclue.com/routing/Cisco/access-lists/index.php

http://www.mtiweb.com/isp/ciscoacc.html

http://www.nwc.com/907/907ws1.html

http://www.cisco.com/warp/public/105/acl_wp.html

http://www.routergod.com/donking/

OSI 7 Layer model

These pages will help you learn about the OSI 7 Layer Model

Bob’s 7 Layer Song (pdf)

Seven Layers of OSI music Click here to play tune

A Great video on the OSI 7 layer model:

http://sabertech.net/routergod/ccnabootcamp/osi.html

http://www.webopedia.com/quick_ref/OSI_Layers.asp

http://www.pcsupportadvisor.com/nasample/t04124.pdf

http://www.geocities.com/SiliconValley/Monitor/3131/ne/osimodel.html

ISDN Reference Points

http://sabertech.net/routergod/ccnabootcamp/isdn_reference_points.html

http://www.ahk.com/isdn-ref.html

http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/isdn.htm

 

Mnemonic Techniques

Mnemonics are techniques used to memorize facts and figures.

http://www.utexas.edu/student/utlc/makinggrade/mnemonic.html

http://www.accelerated-learning-online.com/techniques/default.asp

Test Taking Techniques

Learning how to take standardized tests can significantly increase your test score.

http://www.testtakingtips.com/test/multiple.htm

http://www.studygs.net/tsttak3.htm

 

 

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Not Cisco - But Related Technologies - Ethereal & Linux

 

 

Ethereal Help

 

Getting started with Ethereal:     

 

 

Ethereal overview: http://www.linuxjournal.com/article/6842

 

An overview of how to use Ethereal: http://www.samag.com/documents/s=1441/sam0111a/0111a.htm

 

Ethereal Packet Sniffing is a detailed look at using Ethereal.

 

Ethereal labs for DNS, ARP, IP, TCP and HTTP.  A "must" for CCNA preparation! http://gaia.cs.umass.edu/ethereal-labs/

Ethereal for Windows

 

If do not want to run Linux on your compute try Ethereal for Windows for data sniffing! 

 

Installing Ethereal on Windows is a two step process:

First, download and install the wincap packet capture software:   

 

Second, download and install Ethereal for windows

 

If you are not sure how to use Ethereal I have written a lab that may help: Ethereal Lab

 

A full users guide for Ethereal can be found at: http://prdownloads.sourceforge.net/ethereal/user-guide.pdf?download

 

Knoppix-STD

Knoppix-STD is a bootable CD packed with the Linux OS with an emphasis on information security tools.  Knoppix-STD is meant to be used by both the novice looking to learn more about information security and the security professional looking for another swiss army knife for their tool kit.  For the CCNA student, Knoppix-STD provides sniffer tools like Ethereal and Ettercap as well as the TCP/IP network exploration tool NMAP.

CREATING A KNOPPIX-STD CD:

Download knoppix-std-0.1b.iso for this site: http://ftp.ntua.gr/pub/linux/knoppix-std/

Version 0.1b is not the latest version of Knoppix-STD, but it has an easier GUI for those who are familiar with Microsoft Windows than the Knoppix-STD Version 0.1

After downloading the “iso” image you must burn it to a CD.  This does not mean copy the “iso” to a CD.  Most CD burning software has a command to “create a CD from iso”, the exact command will depend on your particular software.

THE LATEST VERSION OF KNOPPIX-STD:

If you prefer the latest version of Knoppix-STD you can find extensive information at the Knoppix-STD home page: http://www.knoppix-std.org/

RUNNING KNOPPIX-STD:

Make sure that the BIOS on your PC is set to attempt to boot from the CD before the HD.  Insert the CD and reboot the PC.  When Knoppix-STD displays with the boot prompt “Boot:” press enter.  The remainder of the boot process is automatic.

FINDING ETHEREAL:

Ethereal is an open source packet sniffer.  Click on the “K” menu, choose “sniffers and assemblers” and finally choose “Ethereal” from the submenu.  Double click on the thumbnail to see a screen shot.  

FINDING NMAP

Nmap is a text based, open source tool used to identify the IP address and TCP/UDP services used on a network.  Nmap front-end is GUI interface for Nmap.  To find Nmap front-end click on the “K” menu, choose “vulnerability assessment” and finally choose “Nmap front-end” from the submenu.   

FINDING NESSUS

Nessus is an open source tool that scans a network and looks for security vulnerabilities.  To find Nessus front-end click on the “K” menu, choose “vulnerability assessment” and finally choose “Nessus” from the submenu.  Double click on the thumbnail to see a screen shot. 

GETTING HELP

There are four simple ways to get more information about programs on the Knoppix-STD disk.

1)  Use the help files built into the programs.  Double click on these thumbnails to see a screen shot examples.       

2)  Use the man pages for the program you need help with.  Every program in Linux has built in documentation called a man page (manual page).  To view the man page open the shell for the program you need help with.  For example, to get help with Ethereal open the shell in “sniffers and assemblers” (double click on the thumbnail to see a screen shot). 

In the shell, type “man ethereal” (double click on the thumbnail to see a screen shot) . 

You will see the first page of the manual – press enter forward one line at a time.  (double click on the thumbnail to see a screen shot).   

3)  RTFM is an acronym and it stands for Read The F***ing Manual.  Knoppix-STD has a great deal of documentation stored in the RFTM directories of each general topic.  For example, to access the documentation on Intrusion Detection Systems (IDS) open RTFM shell in the “IDS” submenu.   

A variety of helpful documents will now appear in a browser window (double click on the thumbnail to see a screen shot).  

4)  The Web is still your best friend.  At the bottom of the desktop is an icon for the web browser “Konqueror”, click on it.  

Links are defined for most Knoppix categories.  These links can be found in the upper right of the browser under the tab “STD”.   

Also, try searching “google” for more information.  

SETTING THE ROOT PASSWORD

There is no root password built into the Knoppix-STD distribution. If you need root access, you must first set the root password:

1) run the 'Root Shell' option under the Knoppix menu
2) enter a root password (only good for this session unless you have a permanent desktop)

LEARNING MORE ABOUT KNOPPIX TOOLS

Knowing Knoppix is a  FREE 135 page manual for beginners in PDF form: http://www.pjls16812.pwp.blueyonder.co.uk/knowing-knoppix/index.html

Knoppix Hacks covers 100 "hacks" that you can do with the Knoppix distribution. 

 

Basic Linux

http://www.pas.rochester.edu/~pavone/particle-www/telescopes/ComputerCommands.htm

http://www.ami.hut.fi/instructions/Basic_Linux_Command.html

http://www.cns.uni.edu/cns-computing/help/unix-cmd.html

http://www.comptechdoc.org/os/linux/usersguide/linux_ugbasics.html

http://www.reallylinux.com/docs/basic.shtml

 

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