Switch port security filters incoming frames based on the source MAC address. Simple enough, right? Well, this long-time switch security feature has more than a few twists. Chapter 6 of the CCNA 200-301 Cert Guide Volume 2 covers Port Security
It’s time for a new round with the CCNA Deep Dive course series that we run in cooperation with O’Reilly Online Learning. I’ve had a few job roles over the years in which I’ve done a lot of teaching, but
If you take any of the CCNA Deep Dive courses on O’Reilly, then you can come here to post follow-up comments about questions related to the courses. If you did not come to any of the courses yet, feel free
Interestingly, Cisco includes static IPv6 routes in the CCNA 200-301 exam topics, but with no mention of IPv6 routing protocols like OSPFv3. However, you can learn much about IPv6 routing by configuring IPv6 static routes, in particular, they make you
Doing labs helps you move from book-knowledge to real skills, and doing labs that repeat the same examples found in the book can be a great bridge to that effort. This next post continues our series to help you do
OSPF requires two routers to become neighbors before they can exchange OSPF LSAs and then calculate new routes. Chapter 21 of the CCNA 200-301 Volume 1 focuses on neighbor relationships. The chapter examines why some links require a Designated Router
For many years, over many different versions of the CCNA exam, Cisco included multiple IP routing protocols in the exam: RIP, OSPF, EIGRP, and even BGP. With CCNA 200-301, Cisco reduced IP routing protocols down to only one: OSPF. Chapter
