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Many networks are relatively open on the inside. In this video, you’ll learn about zero trust, policy-based authentication, least privilege, Secure Access Service Edge, and more. << Previous: Virtual Extensible LAN Next Video: Infrastructure as Code >> Traditionally, we’ve always done a good job at protecting the edges of our network. This allowed us to […]

Virtual Extensible LAN is designed for large-scale service providers and data centers. In this video, you’ll learn about VXLAN and how a virtual extensible LAN design can scale to millions of virtual networks. << Previous: Software Defined Networking Next Video: Zero Trust >> Many organizations will distribute their applications, their servers, and other devices across

Software defined networking provides a number of advantages over traditional networking. In this video, you’ll learn about the fundamentals of software defined networking and how SD-WAN can be used to optimize cloud-based application traffic. << Previous: Seven Second Subnetting Next Video: Virtual Extensible LAN >> One of the challenges with the virtual world is we

Some network administrators need to subnet quickly with a minimal amount of math. In this video, you’ll learn about the seven second subnetting shortcut for IP subnetting. << Previous: Magic Number Subnetting Next Video: Software Defined Networking >> In previous videos, we’ve gone through the process of manually converting an IP address and subnet mask

There are many different shortcuts that network administrators use to quickly calculate IP subnet information. In this video, you’ll learn about the magic number method of IP subnetting. << Previous: Calculating IPv4 Subnets and Hosts Next Video: Seven Second Subnetting >> If you’ve been with us with the videos just prior to this one, then

Understanding how to subnet using variable length subnet masks are important for any network administrator. In this video, you’ll learn how to use variable length subnet masks to segment a network into smaller IP subnets. << Previous: IPv4 Subnet Masks Next Video: Magic Number Subnetting >> In this video, we’re going to look at a

The transition to variable length subnet masks provides efficiency and flexibility with IP addressing. In this video, you’ll learn about classless subnetting and CIDR-block notation. << Previous: Classful Subnetting Next Video: Calculating IPv4 Subnets and Hosts >> In a previous video, we talked about class-based subnetting and how IP addresses can be assigned a class

We’ve designed IPv4 to support nearly any network size. In this video, you’ll learn the fundamentals of IPv4 subnetting and how network classes are used as a starting point for IP subnetting. << Previous: IPv4 Addressing Next Video: IPv4 Subnet Masks >> When you start working with IP version 4, one of the things you’ll