When it comes to capturing packets traversing an Ethernet switch, Cisco’s Switched Port Analyzer (SPAN) feature is an invaluable tool. However, replicating traffic across router interfaces poses a problem: SPAN can’t be used on routers, as the underlying hardware doesn’t support it. Additionally, the variety of interface types can complicate packet capturing on routers; how do we sniff a serial interface with Wireshark running on a laptop, for example?
Capturing serial traffic on Ethernet with RITE by Jeremy Stretch
November 12, 2009Cisco’s NAC hardware explained by David Davis (Techrepublic)
June 9, 2009Cisco Network Admission Control (NAC) is a system to enforce the security policy of your company on all devices attempting network access. The Cisco NAC solution is made up of many different pieces of hardware, software, and services; this article will explain its many pieces.
Secure your Cisco Network Time Protocol with these tips – Techrepublic Article
May 29, 2009Network Time Protocol (NTP) is a client-server, UDP-based protocol used to synchronize time clocks among network devices. Time synchronization is critical for some feature functionality such as VPNs, time-based ACLs, and authentication and is also a critical element for event correlation, problem debug, and security.
Stopping security threats at the network layer by Paul Mah (Techrepublic)
May 21, 2009Cybercriminals are turning to the use of peer-to-peer network technology in order to control their botnets, says FBI agent J. Keith Mularski. Mularski should know, having spent two years as an undercover agent in order to infiltrate an underground Internet forum. The stint culminated in September 2008 with the arrest of 60 criminals around the globe involved in cybercrimes that ranged from hacking to trading of credit card data and manufacturing of fake credit cards.
Configure Cisco routers to use AD Authenticaion (Router side) by David Davis CCIE (Techrepublic)
May 19, 2009In organizations that use Windows, employees use their Active Directory (AD) username and password to access their PCs every day. So why do you need separate credentials on your routers? You don’t — you can use the Windows AD database to log in to your Cisco routers and switches.
AAA and how to configure it in Cisco IOS? by David Davis CCIE (Techrepublic)
May 19, 2009You probably use Authentication, Authorization, and Accounting (AAA), in some form, every day. But what is AAA in terms of network security? David Davis tells you what you need to know about AAA and the basic configuration for it in the Cisco IOS.
Hello World
May 18, 2009Hello and Welcome to my Tech notepad on cyberspace. This is my maiden post announcing entry into blogosphere. Encoragements are welcome and sarcasm discouraged. Also do tolerate shortcomings if any and suggest corrective steps. Hope my jottings add some vlue to the already overcrowed blogging circles.
Bye for now