page contents
Archive | Networking RSS feed for this section

Video: Installing Tracetcp, Tcping, WireShark and PortQry

The information provided in this video is meant as a tutorial. It is not the final word on security or setup for your particular case. In Simpler terms: USE at your own risk. That said, I hope it helps. Loading the player … This is the last of a four part series on networking troubleshooting: […]

3 Comments Continue Reading →

Video: WireShark Network Capture

The information provided in this video is meant as a tutorial. It is not the final word on security or setup for your particular case. In Simpler terms: USE at your own risk. That said, I hope it helps. Loading the player … This is part three of a four part series on networking troubleshooting: […]

Comments Off on Video: WireShark Network Capture Continue Reading →

Video: Name Resolution and Port Queries

The information provided in this video is meant as a tutorial. It is not the final word on security or setup for your particular case. In Simpler terms: USE at your own risk. That said, I hope it helps. Loading the player … This is part two of a four part series on networking troubleshooting: […]

Comments Off on Video: Name Resolution and Port Queries Continue Reading →

Video: Using Tracetcp versus Tracert

The information provided in this video is meant as a tutorial. It is not the final word on security or setup for your particular case. In Simpler terms: USE at your own risk. That said, I hope it helps. Loading the player … This is part one of a four part series on networking troubleshooting: […]

5 Comments Continue Reading →

HOW TO: Gather a packet capture without installing WireShark

In yesterday’s article, I talked about using MessageAnalyzer (successor to Microsoft Network Monitor) to open network files with no known extensions and then exporting the file in a format that Wireshark can use to present the data. As stated in last week’s article, I mentioned that “networking issues can be a more difficult topic to […]

Comments Off on HOW TO: Gather a packet capture without installing WireShark Continue Reading →

HOW TO: Using MessageAnalyzer to export files to Wireshark

Sometimes you may get a file (usually from an open source system, such as Linux) that has network data. If you try to use notepad to open it in Windows, you will see that it is in binary. The text will be unreadable and you may also think that this file provides no value. (As […]

1 Comment Continue Reading →

Password Reset on Cisco 2509 Access Server

Problem: I had two Cisco 2611 routers and one Cisco 2509 router and I needed to reset the password so that I could take control of the routers for my CCNA studying. I had purchased these devices from Ebay and the sellers didn’t provide any of the usernames or passwords. You can easily find the […]

Comments Off on Password Reset on Cisco 2509 Access Server Continue Reading →

What is the different between Classful and Classless Routing?

I have been preparing to take my last part of my CCNA test later this month, which is ICND2. It goes over a lot of topics, such as routing protocols, VLANs, spanning tree and a lot of troubleshooting. One of the topics involves classful and classless routing as it relates to VLSM (variable length subnet masks) […]

1 Comment Continue Reading →

IOS Command Reference

Router Basic Configuration •    Router> enable (enter privileged mode) •    Router# configure terminal •    Router(config)# hostname R1 •    R1(config)# banner motd # message of the day # •    Setting passwords: •    R1(config)# enable secret password •    R1(config)# line console 0 •    R1(config-line)# password password •    R1(config-line)# login •    R1(config)# line vty 0 4 •    R1(config-line)# password password •    R1(config-line)# login •    Gathering Router Info: •    R1# show version •    R1# […]

Comments Off on IOS Command Reference Continue Reading →

IPv4 SubNetting Cheat Sheet

Lately, I have been reading CCNA 640-802 Official Cert Library by Wendell Odom (a lot) as I am preparing to take my exam in a few months. It is a lot of information to know and the exam covers a lot of information, it is like CompTIA’s Network+ test, but it adds more content to master. […]

3 Comments Continue Reading →
Copy Protected by Chetan's WP-Copyprotect.