Playlist · Keith Barker - The OG of IT
🔒 Unlock the Secrets of IPv4 Subnetting! 🕵️♂️💻: From Basics to Advanced | CCNA 200-301
Total watch time
14h 16m
at 1× speed · exactly 14 hours, 15 minutes, 46 seconds at 1×
At an hour a day you'd finish in 15 days
The shape of the course
Each column is one video, to scale
WatchedTo watch
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Plan to finish
About 15 days at an hour a day
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At one hour a day, every day, this playlist takes about 15 days. Turn on JavaScript to plan around your week.
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Videos (11)
14h 16m in total · tick what you've watched
Tick videos you've watched — progress is saved in this browser. Titles open on YouTube in a new tab.
| Watched | Leave out of the total | ||||
|---|---|---|---|---|---|
| 1 | Subnet Saturday #1: IPv4 Basics | Cisco CCNA 200-301 | 27:25 | 2020-01-11 | ||
| 2 | Subnet Saturday #2: Meet the Mask | Cisco CCNA 200-301 | 36:30 | 2020-01-18 | ||
| 3 | Subnet Saturday #3: Beautiful Binary | Cisco CCNA 200-301 | 42:07 | 2020-01-25 | ||
| 4 | Subnet Saturday #4: Decimal to Binary | Cisco CCNA 200-301 | 38:15 | 2020-02-01 | ||
| 5 | Subnet Saturday #5: IPv4 Block Size | Cisco CCNA 200-301 | 1:10:08 | 2020-02-08 | ||
| 6 | Subnet Saturday #6: The Finger Game | Cisco CCNA 200-301 | 37:43 | 2020-02-15 | ||
| 7 | Subnet Saturday #7: Host Bits | Cisco CCNA 200-301 | 1:45:15 | 2020-02-22 | ||
| 8 | Subnet Saturday #8: VLSM | Cisco CCNA 200-301 | 2:26:12 | 2020-02-29 | ||
| 9 | Subnet Saturday #9 : IPv4 Reverse Engineering | Cisco CCNA 200-301 | 2:15:01 | 2020-03-07 | ||
| 10 | Subnet Saturday #10 : Route Summarization | Cisco CCNA 200-301 | 2:43:21 | 2020-03-14 | ||
| 11 | Subnet Saturday #11: VLSM with Packet Tracer | Cisco CCNA 200-301 | 53:49 | 2020-03-21 |
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[](https://playlistduration.com/playlist/PLQQoSBmrXmry0OIbA7DpjLMXLLYK0NV8z)<a href="https://playlistduration.com/playlist/PLQQoSBmrXmry0OIbA7DpjLMXLLYK0NV8z"><img src="https://playlistduration.com/badge/playlist/PLQQoSBmrXmry0OIbA7DpjLMXLLYK0NV8z.svg" alt="Watch time: 14h 16m · 11 videos" width="210" height="20"></a>Add ?speed=1.5 to the image URL for the time at that speed, ?label=Course to change the left text, or ?style=flat-square for square corners.
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Data from the YouTube Data API as of 2026-11-06 (cached). Private or deleted videos are excluded from totals.