Top resource links
1. https://www.youtube.com/watch?v=bGez1WzTOss - Complete CCNA video course
2. http://www.gns3.net/ - Network simulator, see GNS3 section below
3.
Official Cisco Resources
https://learningnetwork.cisco.com/community/certifications/ccent - ICND1 homepage
https://learningnetwork.cisco.com/community/certifications/ccent/icnd1_v2?tab=studylearn - ICND1 Videos
https://learningnetwork.cisco.com/groups/ccent-ccna-routing-switching-study-group-v2 - ICND1 Study group
https://learningnetwork.cisco.com/community/certifications/ccent/icnd1_v2?tab=practice - ICND1 practice questions
https://learningnetwork.cisco.com/community/certifications/ccna - ICND2 homepage
https://learningnetwork.cisco.com/community/certifications/ccna/icnd2_v2?tab=studylearn - ICND2 Videos
https://learningnetwork.cisco.com/groups/ccent-ccna-routing-switching-study-group-v2 - ICND2 study group
https://learningnetwork.cisco.com/community/certifications/ccna/icnd2_v2?tab=practice - ICND2 practice questions
https://learningnetwork.cisco.com/community/certifications/security_ccna - CCNA Security homepage
https://learningnetwork.cisco.com/community/certifications/security_ccna/iins?tab=2 - CCNA Security Videos
https://learningnetwork.cisco.com/groups/ccna-security-study-group - CCNA Security study group
https://learningnetwork.cisco.com/community/certifications/security_ccna/iins?tab=3 - CCNA Security practice questions
Complete Courses/Study Guides
http://www.ine.com/self-paced/ccna/bootcamps.htm - Complete video series for full CCNA (Streaming option is free)
https://www.udemy.com/cisco-ccna-in-60-days/ - Complete CCNA Course
http://www.omnisecu.com/cisco-certified-network-associate-ccna/index.php - Complete study of topics for CCNA exam.
http://www.omnisecu.com/ccna-security/index.php - Complete study of topics for CCNA Security exam.
CCNA Security Simulators
http://www.ccnalinks.com/asdm-demo-645.msi - ASDM demo software
http://www.ccnalinks.com/CCP.zip - Cisco Configuration Professional software(Used with GNS3 listed below)
http://www.freeccnaworkbook.com/workbooks/ccna-security - CCNA Security Lab Workbook
http://www.brainbump.net/gns3-how-to-setup-cisco-configuration-professional-ccp-on-router/ - CCP Tutorial
https://www.youtube.com/watch?v=-0Tl54qSr0A - Setup CCP with GNS3
http://packetlife.net/blog/2012/jan/30/ios-zone-based-firewall/
http://networkingtips-tricks.blogspot.com/p/table-of-contents.html - GNS3 Setup Tutorial
GNS3/Network Simulators
http://labswitch.blogspot.com - Free online Cisco switch access to practice CLI commands
http://rednectar.net/2014/04/07/gns3-workbench-v8-6-is-finally-out/ - All in one VM image for GNS3 labs
http://www.gns3.net/ - Download GNS3
http://www.gns3.net/documentation - GNS3 documentation
http://www.gns3-labs.com/ - Lab topologies for GNS3
http://gns3vault.com/ - Lab topologies for GNS3
http://packetlife.net/lab/ - Lab topologies for GNS3
http://www.freeccnaworkbook.com/ - Sample labs to use with GNS3
http://freeccnalabs.com/ - Sample labs to use with GNS3
http://hackingcisco.blogspot.com/search/label/Fundamentals - Advanced Labs
http://networkingtips-tricks.blogspot.com/p/table-of-contents.html - GNS3 Setup Tutorial
Practice Exams
http://www.selftestsoftware.com/certprep-materials/cisco.kap - Additional practice exams
http://www.measureup.com/All-Cisco-Practice-Tests-C320.aspx - Additional practice exams
Videos - YouTube/General
http://www.youtube.com/watch?v=g-CP6w6TAIc - CBT Nuggets building a CCNA Home Lab
http://www.youtube.com/watch?v=lrD0pglTtdE - CBT Nuggets how to study for Cisco exams
http://www.youtube.com/watch?v=QxK7G1HZBvg - CBT Nuggets building a CCNP Home Lab
http://www.youtube.com/user/thenetworkingdoctors?feature=watch - Networking Doctors Cisco Course
http://1examamonth.com/ccna/ - Beginning topics for ICND1
http://itunes.apple.com/podcast/cisco-hands-on-training-podcast/id279040049 - Podcast of Cisco topics
http://www.thebryantadvantage.com/CCNA%20Store.htm - Chris Bryant Cisco course
http://ccieby30.wordpress.com/ - Cisco Labs to practice in GNS3
http://www.youtube.com/user/Keith6783 - YouTube channel for Keith Barker
https://www.youtube.com/watch?v=QzHcbJeigeM - Jeremy Special
https://www.youtube.com/watch?v=k8x2sHIA2PQ&list=PLCA2DAEC05DFCAE98&index=9 - I want to be a network engineer
Flashcard/Quiz Sites
http://www.studystack.com/ - User created flashcards, search for Cisco
http://quizlet.com/ - User created flashcards, search for Cisco
Books
http://www.lammle.com/the-latest-books-by-todd-lammle/ - Lammle Books
http://www.amazon.com/Routing-Switching-Portable-Command-Edition/dp/1587204304 - ICND1 Portable Command Guide
http://www.amazon.com/Days-Before-Your-CCENT-Certification/dp/1587204533 - 31 days before your ICND1
http://www.amazon.com/Routing-Switching-Portable-Command-Edition/dp/1587204304 - ICND2 Portable Command Guide
http://www.amazon.com/Days-Before-Your-Routing-Switching/dp/1587204630 - 31 days before your ICND2
http://docwiki.cisco.com/wiki/Internetworking_Technology_Handbook - Cisco Wiki
http://www.amazon.com/Network-Warrior-Gary-A-Donahue/dp/1449387861 - Network Warrior (2nd Edition) – Gary Donahue
http://www.amazon.com/Practical-Packet-Analysis-Wireshark-Real-World/dp/1593272669 - Practical Packet Analysis (2nd Edition) – Chris Sanders
Home Lab Setup
http://www.certskills.com/CLIOptions.aspx - Website comparing home lab vs. virtual options
http://www.certskills.com/LabGear/CCNA/BuildLists.aspx - Build lists for home labs
http://www.ciscoland.net/home.html - Complete Cisco kits
http://www.netnit.com/cisco/ - Used Ciso Hardware
http://www.skeletek.com/index.html - Racks for home lab setups
http://www.monoprice.com/products/subdepartment.asp?c_id=102&cp_id=10208 - Misc Cisco gear
http://www.cablewholesale.com/specs/usb-to-printer/10u1-06101.htm - Cables for home lab setup
http://www.ebay.com (Search for T1 Crossover, Cisco Router, etc.)
http://smorris.uber-geek.net/lab.htm - Ultimate home lab!
Forums and Blogs of Certifications
http://www.techexams.net/forums/cisco/
https://learningnetwork.cisco.com/community/certifications/
http://www.networkworld.com/community/odom
http://www.networking-forum.com/
http://www.networkworld.com/community/odom
http://www.certskills.com/About/WendellOdom.aspx
http://ciscobrat.blogspot.com/
http://ciscoskills.net/2011/03/21/how-i-passed-the-icnd1-exam/
Subnetting
https://beausanders.org/main/index.php/easy-subnetting - Starting point to learn subnetting
http://www.youtube.com/watch?v=AJPZxXwOc-4 - Subnetting made easy
http://www.subnetting-secrets.com/ - Shortcuts to faster subnetting
http://www.subnettingquestions.com/ - Subnetting quizes
http://www.subnet-calculator.com/ - Calculator to check your subnetting problems
http://blog.internetworkexpert.com/wp-content/uploads/2008/11/ccentsubblog.htm - Subnetting Quiz
https://beausanders.org/main/index.php?option=com_content&view=article&id=72&Itemid=83 - General subnetting resources
http://www.rhyshaden.com/ipadd.htm - Subnetting examples
http://faculty.valleycollege.edu/rpowell/jscript/subnet2.htm - Subnetting quizes
http://www.exabyte.net/lambert/subnet/subnet_masking_summary.htm - Subnet mask summary
VTP/STP
http://www.petri.co.il/csc_preventing_network_loops_with_stp_8021d.htm
http://www.petri.co.il/csc_setup_a_vtp_on_cisco_switches.htm
http://www.cisco.com/image/gif/paws/10556/spanning_tree1.swf
EIGRP Summarization
http://www.getnetworking.net/eigrp/eigrp-route-summarization
http://www.ciscopress.com/articles/article.asp?p=174107&seqNum=3
http://ciscotips.wordpress.com/2006/05/12/route-summarization/
http://subnettingmadeeasy.blogspot.com/2007/11/router-summarization.html
http://routemyworld.com/2009/02/12/lab-notes-rip-classful-summarization-auto-summarization/
http://www.youtube.com/watch?v=gdBp50ItQq4
Learning Strategies
CCIE / Misc
http://www.youtube.com/watch?v=FXqicN-Z7JA -
http://blog.ine.com/2013/08/09/congratulations-to-neil-moore-7-x-ccie-10044/ - 7x CCIE!
http://www.ipexpert.com/Cisco/CCIE/Routing-and-Switching/Free-Resources - Free CCIE Resources
http://certcities.com/editorial/features/story.asp?editorialsid=89 - Scott Morris discusses CCIE prep
http://www.firewall.cx - Cisco firewall resources
http://www.crime-research.org/library/grcdos.pdf - Diary of an internet attack
http://www.bgp4.as/looking-glasses - BGP Looking Glass
http://www.brokenlinkcheck.com/ - Check for site broken links
Internet resources change quickly with no notice. Google terms such as “ICND1” or “CCNA” for additional resources not listed here.