Network uptime and bottom line go hand in hand for enterprises dependent on online sales. According to an online DoS attack cost calculator 1 , an enterprise with annual revenue of $10 Million USD, of which at least 10% comes from online sales, can lose up to $100K USD per DoS attack! The year 2011 came to be known as the “Year of the Hack”, a time when we saw small and big enterprises falling victim to network security breaches, advent of industrial malwares like Duqu (Based on Stuxnet ) which can lay dormant for months and attack when needed (That was not the outline of an alien invasion movie), zero day malwares, increased DDoS attacks and more. As per some reports, it is estimated that around One Thousand DoS attacks occur 2 every single day and there are around Three Thousand active Command and Control (C&C) centers 3 which can carry out DoS attacks.
NetFlow configuration for Vyatta router
One of our customers wanted to know the configuration for NetFlow for the Vyatta router. For the benefit of many others who may need it, here it is: Please configure NetFlow on your Vyatta router as mentioned below: set system flow-accounting interface // This command should be issued for each interface you want to monitor set system flow-accounting netflow server port 9996 // Specifies a NetFlow collector to which to export Netflow data set system flow-accounting netflow sampling-rate rate // Specifies the rate at which packets are sampled for statistics. set system flow-accounting netflow version 9 // Specifies the Netflow format that data will be exported in
Enhanced Cisco ASA NSEL Reporting in NetFlow Analyzer
NetFlow is a Cisco proprietary protocol the primary purpose of which is to collect all IP traffic on and send the traffic as UDP packets to NetFlow collector server(or NetFlow Analyzer). It helps Administrators to analyze network traffic and generate reports on bandwidth usage, traffic volume, conversations etc
Cisco Mediatrace Reports in NetFlow Analyzer
After configuring the Initiating Router and Responders for Mediatrace monitoring, as the next step we would now get into report generation. The data is represented in the form of easy to understand charts and graphs. The reports can be generated individually for each session.
ISP and Enterprise Billing in NetFlow Analyzer-Part 2
The previous blog dealt with Billing and as a continuation here is a brief account of IP group billing which is one of the unique features of NetFlow Analyzer. IP Group Billing:- Consider a scenario where billing has to happen across different users from different departments sharing the same link. This scenario is very typical in large enterprises where a given project is handled by different departments & they have their unique ways of using the bandwidth to handle the project
Viewing your LAN IP Addresses in NetFlow Analyzer from NAT enabled routers
NAT (Network Address Translation) helps to map many Private IP address into a single public address and send the information to the internet.
Customizing ASAM module in NetFlow Analyzer
The previous blog was on ASAM will have given you an idea about the class “Scan and Probes” available with NetFlow Analyzer. Now that we know how the events are triggered we need to narrow it down, that the specific events or unwanted events can be ignored. When I say unwanted events, I mean the events that are deemed trusted or allowed network activities for certain resources and problems
Cisco 3K Switches now supports NetFlow export
A very good news for Network Administrators using Cisco 3K switches on their network and for administrator who are going to procure new Cisco 3K series. Let us start with networks which already have Cisco 3K switches. In the past, we used to get a lot of emails and support calls to check if NetFlow export is supported in Cisco 3K series switches we had to unfortunately say
Configuring Alcatel Omni Switches to Export sFlow
The number of customers using sFlow technology is increasing by the day. NetFlow Analyzer supports sFlow technology apart from NetFlow, J-Flow, IPFIX etc.
Got enough bandwidth for tomorrow? Ensure that through Capacity Planning
When enterprises plan their growth, ensuring sufficient room for infrastructure and budget is very essential. This covers every aspect ranging from capital to bandwidth to resource allocation. And our focus will be on bandwidth.