Jan
6
2009
Cisco Press Conference at CES 2009

Cisco will unveil new consumer products and initiatives during a press conference at the 2009 International Consumer Electronics Show (CES) in Las Vegas on Jan. 7, 2009. Cisco Chairman and CEO John Chambers will be joined by key Cisco executives responsible for the company’s consumer strategy to discuss how Cisco is enabling the connected life through a new class of compelling communication and entertainment experiences that are more visual, more social and more personal.

Jan
5
2009
Protecting against MAC flooding attack
mac_flooding_attack_2

In a typical MAC flooding attack, a switch is flooded with packets, each containing different source MAC addresses. The intention is to consume the limited memory set aside in the switch to store the MAC address-to-physical port translation table. The result of this attack causes the switch to enter a state called failopen mode, in which all incoming packets are broadcast out on all ports (as with a hub), instead of just down the correct port as per normal operation. A malicious user could then use a packet sniffer running in promiscuous mode to capture sensitive data from other computers, […]

Dec
28
2008
New Cisco Certification Logo’s

Cisco are deciding to update their certification logo’s; below the proposals: First logo  

Dec
25
2008
Merry Christmas and Happy New Year

I wish everyone a very Merry Christmas and Happy New Year. Fabio – The admin

Dec
23
2008
How to create a VPN server using SDM

As I explained in the article “Security Device Manager aka SDM“, SDM is a Web-based device-management tool for Cisco routers that can improve the productivity of network managers, simplify router deployments, and help troubleshoot complex network and VPN connectivity issues. What is a virtual private network? A virtual private network (VPN) is a computer network in which some of the links between nodes are carried by open connections or virtual circuits in some larger network (e.g., the Internet) instead of by physical wires. The link-layer protocols of the virtual network are said to be tunneled through the larger network when […]

Dec
21
2008
Cisco launches dedicated channel with green.tv

Cisco has created its own channel on the green.tv platform. The channel launches with a series of films focused on Cisco’s Connected Urban Development initiative, which looks at how to reduce carbon emissions through improvements in the efficiency of the urban infrastructure made possible by information and communications technology (ICT) such as Cisco(R) TelePresence. Future programs will focus on creating sustainable cities, virtual collaboration, mobility solutions and smart energy solutions. green.tv has partnerships with some of the world’s leading environmental organisations, including the United Nations Environment Programme and Greenpeace.

Dec
18
2008
Cisco 2008 Annual Security Report

The Cisco® Annual Security Report provides an overview of the combined security intelligence of the entire Cisco organization. Encompassing threat and trends information collected between January and October 2008, this 49-page document provides a snapshot of the state of security for that period. The report also provides recommendations from Cisco security experts and predictions of how identified trends will continue to unfold in 2009. There was an enormous amount of activity related to data and online security during the past year. Although no single, overwhelming attack—such as the spread of Melissa, Slammer, or Storm malware in previous years—turned into the […]

Dec
13
2008
IOS Scripting with Tcl

Discovered during Cisco CCNP course, Tcl (originally from “Tool Command Language“) is a scripting language created by John Ousterhout and introduced from IOS version 12.3(2)T. But what is Cisco Tcl? The Cisco IOS Tcl shell was designed to allow customers to run Tcl commands directly from the Cisco IOS CLI prompt. Cisco IOS software does contain some subsystems such as Embedded Syslog Manager (ESM) and Interactive Voice Response (IVR) that use Tcl interpreters as part of their implementation. These subsystems have their own proprietary commands and keyword options that are not available in the Tcl shell.

Dec
10
2008
What do you want for Christmas?

Surfing the web, I have found this video. It’s quite old, but… no comment -.-” And you, what do you want for Christmas?

Dec
8
2008
Cisco C-Scape 2008

Cisco’s C-Scape Global Forum 2008 brings industry analyst and press communities together with John Chambers, his executive team and guest technology leaders for discussion, debate and dialogue on the industry’s prevailing issues and trends. This year’s interactive forum will focus on the process of building the Next Internet – a much richer user experience on a global scale – and feature discussion around key market transitions in video, collaboration and data center/virtualization.