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dimanche 17 mai 2015
jeudi 14 mai 2015
Ping vs. Traceroute vs Pathping
One of the biggest misconceptions of all time in networking is the use of a traceroute to determine that your communication with a server has high latency. On windows, traceroute is the same command as tracert.Many people...
Cisco ASA Pre-8.3 NAT & Post-8.3 NAT
When Cisco made changes to the Cisco ASA software in 8.3, it completely shook the ASA engineering community. Major changes overhauled the operating system in how the Cisco ASA handles Network Address Translation.Even...
CCIE Poaching and Sniping…
The CCIE Certification is an extremely sought after certification not just from an engineering perspective but also a Company perspective. In order for any company to become a Silver or Gold Certified Partner with Cisco,...
Opengear and the Stub Lab
The Stub Lab is a fully functional Cisco Lab provided as a free service to the community by Free CCNA Workbook. All you need to do to gain access to a top notch Cisco Lab that has ISR’s, Multi-layer switches, Cisco ASA’s...
How to make a T1 Crossover Cable
For years people have used the old and untrusty DB60 DCE to DB60 DTE cables to simulate WAN connectivity between Cisco Routers using WIC-1T modules; and what I mean by untrusty is that these cables have a tendency to...
WAN Technologies and Link Speed Charts
The following blog has been compiled to provide information for the different type(s) of WAN Technologies. Keep in mind that Ethernet is a fast growing WAN technology with companies moving to deploy VPLS, MPLS and TLS...
Building an IPSEC GRE Tunnel
So there is a little bit of confusion on the interwebz when it comes to understanding an IPSEC GRE tunnel. First off lets look at how it actually works.GRE works by encapsulating IP traffic inside of an IP packet and...
Cisco IOS Radius Authentication with Windows Server 2012 NPS
Configuring Cisco devices to authenticate management users via RADIUS is a great way to maintain a centralized user management base. Traditionally this has been done using the Cisco Access Control Server (ACS) which...
Private Internet Access via L2TP IPSEC Cisco IOS Client
So with the NSA, the CIA and the FBI sucking up every bit they possibly can on the internet at countless locations around the world you wonder how could you possibly become anonymous on the interwebz? Of course it’s...
Job Advice for Aspiring Network Engineers
Well I figured I would write a new type of blog regarding a question that I see get posted on the facebook page all the time. What kind of job can you get with the CCNA? Well in order to answer this question accurately...
dimanche 10 mai 2015
CCNA Wireless Chapter 1 and Chapter 2 Exam Answers
1.With radio frequencies, the goal is…to send as much data as possibleas far as possibleas fast as possible2.The IEEE wireless standard is…802.113.The FCC defines (4 things)Unlicensed frequenciesPower @ which frequencies...
CCNA Wireless Chapter 3, 4 and 5 Exam Answers
1.Wavelength can be described as…The distance between successive crests of a wave2.What is the wavelength of AM radio waves?400-500M3.What is the wavelength of satellite waves?1MM4.As frequency increases, distance travelledDecreases5....
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