Cisco Systems NetFlow Analyzer s manual

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Table of contents for the manual

  • Page 1

    OmniPeek NetFlow Analyzer User’s Guide Introduction We know, you love th e OmniPeek UI (we all do), and you would like to use it to analyze p acket based traffic as well as NetFlow statistics from the various Cisco Routers that are spread all over the network. Well g uess what? Now you can do just that with the WildPackets NetFlow Anal yzer for t[...]

  • Page 2

    the NetFlow Analyzer is listening on. Cha nging the NetFlow Analyzer listen port is done by goin g to Tools -> Options -> Analysis Modules -> NetFlow A nalyzer, hitting the Options button, and then changing the port as shown in the screenshot. Router Configuration It is important to note th at in order to receive NetFlow data, a router m u[...]

  • Page 3

    Capturing Other NetFl o w P a cke ts As mentioned earlier, the NetFlow Anal yzer can also capture NetFlow packets that are being sent to other devices, analyze the packets and display the NetFlow statistics. To capture and analyze NetFlow pac kets, create and enabled an Advanced Fil ter on the NetFlow Capture Analysis Module. This is d one by creat[...]

  • Page 4

    Also, this technique creates packet s on the fly from NetFlow statisti cs that can represent very large numbers of packets. Becau se of this, best practices must be used in order f or the NetFlow A nalyzer to scale. At lower volumes the Ex pert can be used to display conversations. How ever, at higher volumes the Expert diagnoses should be disabled[...]