IPv4 versus IPv6 :: Understanding : Their : Basic : Differences
Most businesses and networks today use IPv4 as their network addressing standard. With the exception of some DoD and government agencies few people have adopted IPv6. But what is so different about IPv6 versus IPv4? In this post we compare the differences between IPv6 and IPv4 and review some of the basics of what makes […]
Keep SecureCRT Synchronized Between Computers with Dropbox
Today we have a great tip for easily keeping your SecureCRT sessions synchronized across multiple computers. Anyone who has ever used SecureCRT as their ssh client knows how easy, powerful and convenient it is to use. However one of the biggest problems with SecureCRT is keeping your saved sessions in sync across multiple desktops, laptops, […]
Preparing the Network for Christmas
With another Christmas right around the corner many network shops are getting ready for the Christmas break. This can mean one of two things for you as a network engineer. Either lots of work with everyone off, or little work and lots of on-call. Either way, as a network engineer our job doesn’t really take […]
Is Your Router Login Banner Inviting Attackers In?
A router login banner can be a helpful tool. Many people use the Message of the Day (MOTD) or router login banner as a warning to ward off unwanted visitors and help identify ownership as well as other necessary legal disclaimers. But did you know, depending on the verbiage you use, you could be inviting […]
ICND 1 – Module 12 – Initial Switch Configuration
ICND 1 – CCENT Video eCourse Module 12 “Setting up a Cisco Switch” In this 28 minutes video, Joe will guide us through the initial configuration of a Cisco switch.
ICND 1 – Module 11 – Understanding Cisco IOS
ICND 1 – CCENT Video eCourse Module 11 “Understanding Cisco IOS” In this 32 minutes video, Jos gives a basic understanding of the Cisco IOS using real equipment.
ICND 1 – Module 10 – LAN Switches
ICND 1 – CCENT Video eCourse Module 10 “LAN Switches” In this 26 minutes video Joe gives an excellent introduction to local area network (LAN) switches. Why is a switch called switch?
ICND1 – Module 9 – Physical Connections
ICND 1 – CCENT Video eCourse Module 9 “Physical Connections” Today Joe talks about the physical part of the network. A 34 minutes detailed explanation. Learn all about cables!
ICND 1 – Module 4 – “Basics of TCP/IP”
ICND 1 – CCENT Video eCourse Module 4 “Basics of TCP/IP” How the OSI Model and TCP/IP Relate Understanding the two address concept Why you need two addresses – MAC Address and TCP/IP Classful IP Addresses Public vs. Private Addresses
There can be only one – Root Bridge
Spanning Tree and Switches are a lot like the Highlander – “there can be only one” (root bridge in your spanning tree). The process of electing a root bridge is very similar to Highlander in that switches will battle it out until one bridge is the root. And all designated ports shall forward to it! […]