All opinions stated are those of the poster only, and do not reflect the opinion of Cisco Systems Inc., or its affiliates. NOTE: The "Reddit Cisco Ring", its associates, subreddits, and creator "mechman991" are not endorsed, sponsored, or officially associated with Cisco Systems Inc. Looking for work? check out /r/NetworkingJobs.Wireshark - For studying packets as they appear on the wire.The files for these activities are on the accompanying CD-ROM. GNS3 - The network simulator that every network person should have Packet Tracer Activities: Explore networking concepts in activities interspersed throughout some chapters using Packet Tracer v4.1 developed by Cisco.Free Packet Tracer Download - Thank you /u/tenormore for pointing it out.Free CCNA training by reddit backed kickstarter created by Andrew Crouthamel.Internetwork Training CCNA Practice Quiz - I like this one a lot of good questions.Free CCNA Workbook - By Matthew George, CCIE #38216.
Cisco's Learning Network - I would look here no matter what you do.Packet Life Cheat Sheets - Don't forget to thank /u/stretch85 and remind him to update his sheets.- Subnetting practice site built by redditor /u/DressedUpNowhere2Go.