Uploaded February 2026 | Updated September 2026, 3 weeks ago
Sick of calculating wildcard masks? You aren't alone.
While the classic OSPF *network* command works, it can be tricky to get right. In this video, we cover the modern, precise alternative: OSPF Interface Subcommands. This method lets you enable OSPF directly on the interface—no wildcard math required.
We will look at how to configure it, how to verify it, and how it interacts with the old *network* command if you accidentally use both.
⚠️ Watch at 10:33 to see what happens when you configure the Network Command AND Interface Command on the same router!
📘 *CCNA Official Cert Guide:*
Volume 1 Chapter 22 Section 2 of 2
In Edition 2, for CCNA Blueprint V1.1, Published in 2024
*Chapters*
00:00 Intro
01:16 OSPF Interface Config
05:22 Verifying OSPF Interface Config
10:33 Related Topics (Migration, Precedence)
16:37 CCNA Study Group
*The Earlier Video about OSPF network Command Config*
📽️ youtu.be/z7E0uFrnwrs
*Do Config Lab “OSPF Interface Config 1”*
🧑🏻🔬 📽️ youtu.be/-9UrBoxjJ6k (Lab Intro Video)
🧑🏻🔬 📽️ youtu.be/SCcHws6cJsU (Lab Review Video)
🧑🏻🔬 certskills.com/clab519 (Lab Blog Page)
*Review with Labs from this Chapter!*
Use the CCNA Course playlist. Scroll down until you see videos about OSPF, in Volume 1 Part 6. The thumbnails will show chapter numbers – look for Chapter 22!
youtube.com/playlist?list=PLhDAmDsTz9Xe2JrZqmPlMjYi5vsNAILG3
========================================
*Product Links*
Product links below. I make a small affiliate sales commission if you buy something!
CCNA Library (Two Book Set):
📚 ccna.link/nu-cp-lib-ed2
All CCNA products at Cisco Press:
🖨️ ccna.link/nu-cp-allccna
All Wendell's products at Cisco Press:
🧔🏼♂️ ccna.link/nu-cp-allwo
Ciscopress.com/NewCerts Page (News, Announcements):
📰 ccna.link/nu-cp-newcerts
=========================================
Sick of calculating wildcard masks? You aren't alone.
While the classic OSPF *network* command works, it can be tricky to get right. In this video, we cover the modern, precise alternative: OSPF Interface Subcommands. This method lets you enable OSPF directly on the interface—no wildcard math required.
We will look at how to configure it, how to verify it, and how it interacts with the old *network* command if you accidentally use both.
⚠️ Watch at 10:33 to see what happens when you configure the Network Command AND Interface Command on the same router!
📘 *CCNA Official Cert Guide:*
Volume 1 Chapter 22 Section 2 of 2
In Edition 2, for CCNA Blueprint V1.1, Published in 2024
*Chapters*
00:00 Intro
01:16 OSPF Interface Config
05:22 Verifying OSPF Interface Config
10:33 Related Topics (Migration, Precedence)
16:37 CCNA Study Group
*The Earlier Video about OSPF network Command Config*
📽️ youtu.be/z7E0uFrnwrs
*Do Config Lab “OSPF Interface Config 1”*
🧑🏻🔬 📽️ youtu.be/-9UrBoxjJ6k (Lab Intro Video)
🧑🏻🔬 📽️ youtu.be/SCcHws6cJsU (Lab Review Video)
🧑🏻🔬 certskills.com/clab519 (Lab Blog Page)
*Review with Labs from this Chapter!*
Use the CCNA Course playlist. Scroll down until you see videos about OSPF, in Volume 1 Part 6. The thumbnails will show chapter numbers – look for Chapter 22!
youtube.com/playlist?list=PLhDAmDsTz9Xe2JrZqmPlMjYi5vsNAILG3
========================================
*Product Links*
Product links below. I make a small affiliate sales commission if you buy something!
CCNA Library (Two Book Set):
📚 ccna.link/nu-cp-lib-ed2
All CCNA products at Cisco Press:
🖨️ ccna.link/nu-cp-allccna
All Wendell's products at Cisco Press:
🧔🏼♂️ ccna.link/nu-cp-allwo
Ciscopress.com/NewCerts Page (News, Announcements):
📰 ccna.link/nu-cp-newcerts
=========================================
