How to Troubleshoot and Verifying OSPF Configuration?
There are several ways you can verify and troubleshoot OSPF configuration and operation, listed below are the necessary command to do this: How to verify OSPF Configuration: Show IP route…
EIGRP on a Cisco ASA Firewall Configuration
The Cisco Adaptive Security Appliance is an integrated security equipment that can perform a variety of functions like firewall, intrusion prevention, VPN, content security, unified communications, and remote access. Among…
What is Cisco ASA CX Security Module?
The new series of Cisco ASA devices (ASA 5500-X models which include 5512-X, 5515-X, 5525-X, 5545-X, 5555-X and 5585-X) have the capabilities to support Next Generation Firewall Security Services. They…
How to Set up a Cisco ASA 5505 Firewall with a Wireless Router?
This article is written by Lauren Malhoit talking about setting up a Cisco ASA 5505 firewall with a wireless router focuses on things you might encounter when doing the setup…
Cisco ASA5510 Vs ASA5512-X or Cisco 5515-X
Cisco released its announcement of EoL and EoS dates for the Cisco ASA 5500 Adaptive Security Appliances, including Cisco ASA 5550, Cisco ASA 5540, Cisco ASA 5520, Cisco ASA 5510…
Configuring a Cisco Wireless Network
In this article it will walks you through how to configure a Cisco wireless network. Modern business wireless networks are complicated, so configuration of the actual network should happen after…
How to Reset a Cisco Router Back to Factory Defaults?
There are two main methods to return a Cisco router to its original factory defaults. These two methods are described below. First Method This method uses the config-register 0×2102 command in global…
Use Layer-3 Switch or Router?
In general, you want to use a router when most of the time the device does routing. Likewise, you want to use a switch when when most of the time…
Most Frequent Interview Questions for Network Engineers
In the last article we listed 100 interview questions for network engineers. May be some of them are not often asked. Again, here we gathered most frequently asked interview questions for network engineers…
Cisco, Google Top Greenpeace IT Ranking 2013
In the middle and late of April (April 22 is the Earth Day) is every year, Greenpeace will release the latest version of its Cool IT Leaderboard, which remind us…
Secure SNMP in Cisco Switches and Routers
This article focus on the ways how we can secure SNMP access in Cisco Switches and Routers Simple Network Management Protocol (SNMP) uses the default UDP port 161 for general SNMP messages and UDP port 162…
Top 100 Interview Questions for Network Engineers
What interview questions for a network engineer is going to prepare? Maybe we can list a lot of basic questions, such as the administrative distance of EIGRP, eBGP, iBGP, what…
Main Differences between Lines of Cisco 3750 Series Switches
What are the MAIN differences between Cisco’s highly successful lines of 3750 series switches? There is a brief overview of the biggest differences between the 3750 V2, 3750-E, and the…
How to Configure SNMP on Cisco IOS-based Router/Switch?
SNMP is an application-layer protocol that provides a message format for communication between SNMP managers and agents. The SNMP manager is the system used to control and monitors the activities of network hosts using SNMP; this…
Cisco 3750 Stacking Configuration
Process for replacing a failed master switch in a Cisco 3750 switch stack 1. Upgrade or downgrade the software on the replacement switch to match the rest of the switch…
The Way to Activate Your Cisco ASA 5500
We will show the Latest to activate the Cisco ASA 5500 firewall. Detailed info you can check as follows (Taken from Cisco’s Forum) CiscoASA# show activation-key Serial Number: ************ Running…
How to Connect to Cisco ASA?
Although Cisco ASA by default ships with a configuration that already includes 2 preconfigured networks, (Outside network and Inside network configured to 192.168.1.0 subnet with configured DHCP server), which provides an easy…
EoS and EoL Announcement for the Cisco Aironet 1260 Series
Cisco announces the end-of-sale and end-of-life dates for the Cisco Aironet 1260 Series. The last day to order the affected product(s) is October 7, 2013. Customers with active service contracts…
Make Our Network Green, Love Our Earth
Earth Day is observed on April 22 each year, which reminds us of protecting our world in every way we can do. Nowadays, we hardly live without modern technology, electrical…
Exciting, the State Of Social Ads
Social media advertising is big business–Facebook, LinkedIn and Twitter combined for well over five billion dollars in ad revenue in 2012. But while spending on social media ads continues to rise–81 percent…
EoS and EoL Announcement for the Cisco Aironet 1140 Series & Cisco Aironet 1040 Series
Cisco announces the end-of-sale and end-of-life dates for the Cisco Aironet 1140 Series & the Cisco Aironet 1040 Series. The last day to order the affected product(s) is October 1,…
Cisco ASA 5520 Basic Configuration Guide
The bellow is a quick start to get your Cisco ASA off the ground by the means of a few print screens It provides an easier way of explaining how…
