Finally Understand NAT and PAT, Wireshark shows every translation https://stream.echo6.co/videos/watch/f47cb02f-8a66-4469-9f21-4757161c1c1d NAT and PAT power almost every home and enterprise network. In this video I show you, step by step, how private RFC1918 addresses are translated to public addresses, why IPv4 exhaustion forced us to use NAT, how Cisco’s inside-local and inside-global terms actually map to packets, and I prove it all live with Wireshark and tshark. You’ll learn: • NAT vs PAT in plain English • The three RFC1918 ranges: 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16 • Why IPv4 ran out and how NAT delayed disaster • Why ISPs block private ranges on the internet • IPv6 usually doesn’t need NAT • Cisco’s inside local, inside global, outside local, outside global explained with a capture • Packet-by-packet proof using Wireshark and tshark Perfect for CCNA students, junior network engineers, and anyone who wants to finally understand what their router is doing. // Playlist to CCNA Course REFERENCE // https://www.youtube.com/watch?v=tj3yCZWOWYc&list=PLw6kwOJVj3MbMZ8B72ZgUryj8OSETC0ds // David's SOCIAL // Discord: https://discord.com/invite/usKSyzb X: https://www.twitter.com/davidbombal Instagram: https://www.instagram.com/davidbombal LinkedIn: https://www.linkedin.com/in/davidbombal Facebook: https://www.facebook.com/davidbombal.co TikTok: http://tiktok.com/@davidbombal YouTube: https://www.youtube.com/@davidbombal Spotify: https://open.spotify.com/show/3f6k6gERfuriI96efWWLQQ SoundCloud: https://soundcloud.com/davidbombal Apple Podcast: https://podcasts.apple.com/us/podcast/david-bombal/id1466865532 // MY STUFF // https://www.amazon.com/shop/davidbombal // SPONSORS // Interested in sponsoring my videos? Reach out to my team here: sponsors@davidbombal.com // MENU // 0:00 – Intro 0:40 - Looking at the IP Address 01:37 - Carrier-Grade Nat 02:50 - Private & Public Addresses 04:43 - Class A Addresses 05:15 - Running Out of Addresses 06:50 - What Stops Access to the Internet 07:50 - Terms you Should Know 09:30 - Terminology (Topology) 14:53 - Practical Demo Starts 16:25 - Capturing Traffic 18:49 - Conclusion Please note that links listed may be affiliate links and provide me with a small percentage/kickback should you use them to purchase any of the items listed or recommended. Thank you for supporting me and this channel! Disclaimer: This video is for educational purposes only. #nat #networking #ccna Wed, 15 Apr 2026 09:59:07 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co Finally Understand NAT and PAT, Wireshark shows every translation https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/f47cb02f-8a66-4469-9f21-4757161c1c1d All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.