Articles That Might Interest:

Cisco Routers

Cisco 880W (881W, 886W, 887W, 888W) Multiple - Du…

This article shows how to configure the embedded or integrated access point in a Cisco 880W series router (e.g Cisco 887W, Cisco 886W, Cisco 881W, Cisco 888W, etc) with multiple encrypted SSIDs (WPA…

Domain Name System (DNS)

The DNS Protocol - Part 2: DNS Queries & Resoluti…

This section will help you understand how the DNS queries work on the Internet and your home network. There are two ways to use the domain name system in order to resolve a host or domain name to an…

Windows Servers

How to Install and Configure Windows 2012 DNS Ser…

Our previous article covered introduction to the Domain Name System (DNS) and explained the importance of the DNS Server role within the network infrastructure, especially when Active Directory is in…

Cisco Wireless

Easily Convert Cisco Autonomous - Standalone AP t…

This article explains how to convert a local or remote Autonomous / Standalone Cisco Aironet Access Point to Lightweight and register it to a Cisco WLC Controller. Included are detailed steps, comman…

Linux - Unix

Why Use Linux?

The first question is - what are the benefits of using Linux instead of Windows? This is in fact a constant debate between the Windows and Linux communities and while we won't be taking either side…

Routing

OSPF - Part 2: How OSPF Protocol Works & Basic Co…

This article covers basic OSPF concepts and operation. We explain how OSPF works, how OSPF tables are built on an OSPF-enabled router and their purpose (Neighbour Table, Topology Table, Routing Table…

Ethernet Protocol, CSMA/CD, Collisions

Late Ethernet Collisions

Late collisions, on the other hand, are not normal and are usually the result of out of spec. cabling or a malfunctioning adapter. A late collision is defined as any collision that occurs after 512 b…

OpManager - Network Monitoring & Management

Free Webinar - Dealing with Remote VPN Challenges…

With a lot of enterprises switching to a work-from-home model, it is critical for admins to have a strategy in place to avoid poor performance and ensure secure access. This webinar will help you und…

Cisco CallManager-CCME

Risk Management for Cisco Unified Communication S…

As technology has advanced, things have become simpler yet more complex. One prime example is that of today’s communication networks. With the evolution of VoIP, the most obvious convergence is that…

Cisco Wireless

Understanding, Configuring & Tweaking Web-based C…

Cisco Aironet Access Points, just like most Cisco devices, provide a web interface from which we are able to configure the device. It is often we are presented with a number of options and settings…

TCP - UDP Protocol Analysis

UDP Protocol - Header

This article covers the UDP protocol. We examine the structure of the UDP header, the protocols that use UDP as a transport plus a lot more. Some common protocols which use UDP are: DNS, TFTP, ARP…

Cisco Wireless

Cisco Wireless Controllers (WLC) Datasheets Avail…

We would like to inform our readers that Firewall.cx has just made available as a free download all of Cisco's Wireless Controller Datasheets. The datasheets provide valuable infomation for all curr…