One of the features of Access Control Lists on Cisco ASA firewalls (available also in IOS routers), is that you can schedule when a particular ACL entry is activated. That is, a specific access-list statement will remain disabled until a specific time range is reached. This is useful in cases where you want to allow […]
Administrative Distance of Routing Protocols
Cisco Routers support many dynamic routing protocols for learning routes in a complex network topology. The routing protocols supported are the following: RIP OSPF BGP IS-IS IGRP EIGRP Each routing protocol has its own Administrative Distance (AD), which is a value representing the trustworthiness of the specific routing protocol. If a router learns a destination […]
Average Salary of Cisco Engineers in UK for 2008
According to the site http://www.itjobswatch.co.uk , IT Jobs in 2008 that have requested Cisco Experience and skills for recruitment, are offering an average salary of £41,802 UK Pounds per year. During the same period last year, the average salary was £43,462 (-3.82 % decrease in 2008). This shows that recession is hitting the IT industry […]
How to Recover the Password on a Cisco PIX Firewall
There are going to be several situations whereby you or a customer of yours may forget the password of a Cisco PIX firewall appliance. The following procedure will show you step by step how to recover the lost password. This works for all PIX models running versions 6.x. Note: For password recovery on the newer […]
Aironet 1242 AG Access Points dropping up and down
The following is taken from the Cisco NetPro discussion forum, regarding cisco wireless access points which are dropping clients randomly. I thought it might interest somone so I repost the issue here: Problem: I have anywhere from 5-20 access points drop up and down throughout the day out of a total of around 200. I am […]
Using Interfaces with Same Security Levels on Cisco ASA
Most Cisco ASA firewall models allow you to have a maximum number of VLANs greater than 100 (e.g 150, 200, 250). Each Layer 2 VLAN on the ASA is essentially a different security zone, with its own Security Level number. As we know, security levels can range from 0 to 100 (i.e we have 101 […]
Cisco Aironet Wireless for Challenging Environments
If you need a rugged wireless access point device for challenging RF environments (such as warehouses, factories, large establishments etc) then the Cisco Aironet 1240 AG series is the ideal product for your situation. This device takes into account antenna support versatility as well as environment/physical security (broad range of operating temperatures and secure mounting bracket). The […]
Cisco is no 6 in the 100-Best-Companies-to-Work list
FORTUNE magazine published a list with the “100 Best Companies to work” for 2008, and Cisco Systems is no. 6 in the list. Specifically, Cisco is recognized as a company that keeps the balance between work and modern life, offers many choices and innovation in the field of communications, and provides competitive salaries and has low rate of withdrawal […]
IOS Packet Capture and Auto Upgrade
IOS Packet Capture Finally there is a feature that was missing from IOS in the past. This is the ability to easily capture packets travelling through the router, and export the captured data to PCAP format so that you can view it with third party tools (like Wireshark). This feature is useful also when doing […]
Next Generation Wireless – Wireless Mesh Solution
The Next Generation Wireless technology came into play with the introduction of the new 802.11n Wi-Fi standard which delivers unprecedented reliability and up to five times the throughput of current 802.11a/b/g wireless networks. Some of the key advantages of the new 802.11n standard are the enhanced data rate of up to 300 Mbps and the adoption of […]
Password Security for Cisco IOS Devices
The use of password protection in any Cisco device is of paramount importance since passwords provide the first level of defence against unauthorised access to our Cisco networks. Especially on terminal lines (either console line or VTY lines), the use of passwords is a fundamental element of security. The following techniques enable you to control […]
Cisco 800 Series Router Models
The Cisco Integrated Services Router (ISR) technology concept, that was initially implemented on 1800, 2800, 3800 series, is now available on the small office and small business models in the 800 series routers. The ISR technology integrates several networking and security features on one device, such as wireless networking, security firewall, virtual private networks, quality […]
Cisco Best Overall Home Networking Design
Today’s Internet is quickly becoming as much a part of daily life in the home as water, gas, and electricity. A high-speed, always-on Internet connection is now a fundamental utility in the home, enabling a broad range of applications, solutions, and services that save people time, increase family convenience and security, and build and helps […]