Netflow protocol analysis helps determine whether there is a security risk. It also helps to decipher unusual traffic patterns and unexpected network activity, which could be a source of cyber security threats.
The standard behavior of the NetFlow collector is that it gathers information about traffic from a variety of sensors on the network and keeps it for some period of time; this data will show us almost everything about communications between nodes in that network.
You can collect data protocols, addresses, hosts, domains etc. from different network data sources using NetFlow in conjunction with special software. With this data available you can answer the questions “who”, “where” and “when” used your network. With NetFlow solutions you can even classify the IP and get an alert when something goes wrong.
This information also helps to find the source of intrusion when it was revealed. If this happens, you have to make a decision quickly and all the information has to be gathered at once: which workstation was involved, which address was used and much more.
We should look at today’s a cyber security problem more sensibly. The most effective way to protect your network is by monitoring it from the inside. Most importantly, we should start with collecting and analyzing NetFlow’s data and that way eliminating any threats.