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Classful vs. Classless Routing – Cisco Skills
https://ciscoskills.net/2011/06/01/classful-vs-classless-routing
In the Cisco World, Expect Anything. Classful vs. Classless Routing. June 1, 2011. May 5, 2011. Before the internet and general networking become popular into what it is now, there were and still are routing protocols that only do classful routing. What is classful routing? When I was talking about Dynamic Routing. Earlier (See the post Dynamic Routing Protocols. Class and not the subnet mask. Uses Classful and Classless Routing. How a Router Routes. Why Are Routed Protocols Important to Networking?
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The Wonders of Binary – Cisco Skills
https://ciscoskills.net/2011/02/15/the-wonders-of-binary
In the Cisco World, Expect Anything. The Wonders of Binary. February 15, 2011. February 12, 2011. The first thing in understanding how binary works is that in binary there is only two digits zeros (0) and ones (1). Working with these two numbers seems easy but if the number is large, it does take some time in converting to binary and from binary. Binary works in the power of twos so with that said let’s look at how to convert binary into a decimal number. 512 256 128 64 32 16 8 4 2 1. Ok we can convert f...
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About – Cisco Skills
https://ciscoskills.net/about
In the Cisco World, Expect Anything. Welcome to the Cisco Skills website,. Experiences as well as some random thoughts and ideas, let’s keep it fun! I have had 4 years working hands on with Cisco gear and have always loved technology and especially looking at how we communicate by using data and voice communications, just look at recent events that involve Facebook. And other social media outlets, none of those stories would be available without a network infrastructure! Read about how I passed the ICND1.
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Converting Hexadecimal to Decimal and Binary – Cisco Skills
https://ciscoskills.net/2015/04/21/converting-hexadecimal-to-decimal-and-binary
In the Cisco World, Expect Anything. Converting Hexadecimal to Decimal and Binary. April 21, 2015. April 22, 2015. Post as well as Part 1. Of subnetting. Let’s get started! Jumping right into it if we look at this hexadecimal value 0x56A we know it’s hexadecimal because the 0x is the prefix for a hexadecimal number so we really don’t need to do anything with the 0x . Let’s focus on the 56A value. So where do we start? We then move to the next digit “6” what does that look like in binary? Write it out and...
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HDLC vs. PPP – Cisco Skills
https://ciscoskills.net/2012/02/21/hdlc-vs-ppp
In the Cisco World, Expect Anything. HDLC vs. PPP. February 21, 2012. February 21, 2012. And PPP are considered to be in layer 2 of the OSI model. There are some differences between which will be describe in this post, If you would like to learn more about at least the basic configuration of PPP including PAP and CHAP check out the post I wrote about year ago. ( Basic PPP Configuration. HDLC was first developed by the ISO Cisco tweaked the protocol sometimes called cHDLC. Support for Error detection.
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Configuring Rancid – Cisco Skills
https://ciscoskills.net/2015/02/27/configuring-rancid
In the Cisco World, Expect Anything. February 27, 2015. February 25, 2015. In my last post I talked about installing Rancid on Centos 7. So be sure to check that out. In this post we now want to actually use Rancid so I’ll walk through on how to setup Rancid to login into network equipment and get configurations. To recap. Login into Rancid with the Root account followed by su rancid (. Is the group you configured the List of Groups under the rancid.conf file during the installation). For reference ranci...
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Passed the 640-911 DCICN – Cisco Skills
https://ciscoskills.net/2015/05/13/passed-the-640-911-dcicn
In the Cisco World, Expect Anything. Passed the 640-911 DCICN. May 13, 2015. Overall the exam did a good job of testing on the NX-OS software and the overall basic networking fundamentals (ICND1 material with touch of Nexus) which is what this test is supposed to be about. However there are questions that surprised me and was not ready because of the lack of information about the test. When I started studying for this exam I read the exam blueprint for the 640-911. Which includes the 640-911 and 640-916 ...
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Setting up Enhanced vPC on Nexus 5600 – Cisco Skills
https://ciscoskills.net/2014/09/10/setting-up-enhanced-vpc-on-nexus-5600
In the Cisco World, Expect Anything. Setting up Enhanced vPC on Nexus 5600. September 10, 2014. January 30, 2016. So I’ve played around with two Cisco Nexus 5672UP switches which will be in production soon but before that I wanted to see what it took to get enhanced vPC online. Along the way I was into some new territory as I never stood up vPC before, so in this post I have posted some things to keep in mind and running-config examples, all of which I hope is helpful for a reference. In this example I d...
ciscoskills.net
Configuring SSH – Cisco Skills
https://ciscoskills.net/2011/03/29/configuring-ssh
In the Cisco World, Expect Anything. March 29, 2011. April 18, 2011. Today this tutorial is going be talking about how to configure SSH on a Cisco. Router or switch. SSH or Secure Shell. Encrypts the data that is sent from the terminal application to the device. Making if far more safer when it is compared to telnet which sends the data in plain text. To add support for SSH to a Cisco router or switch, the device needs some added information then just passwords. And the password will be. You must enter a...
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Basic Router Configuration – Cisco Skills
https://ciscoskills.net/2011/01/26/basic-router-configuration
In the Cisco World, Expect Anything. January 26, 2011. January 28, 2011. The first thing you should always do when first configuring a router is erase the startup configuration. This assures us that anything that might have been saved or loaded is gone and won’t affect are configurations. First make sure you are in privileged EXEC mode on the router by typing. Symbol tells us that we are in privileged EXEC mode. Then in privileged EXEC mode issue the command. Confirm] [OK] Erase of nvram: complete Router#.
