I am currently evaluating a commercial netflow analyser but with the current eco climate I wondered whether anyone had experience of a free or open source alternative ?
I have tried a couple but they dont seem to collect all the data I think I should get.
The catos on my 6500s are older and disparate versions and I dont seem able to coerce them into exporting version 5 flows some of them seem to only want to do version 7.
I have looked at scrutiniser aswell which will only retain data for 24 hours, in addition there is the quandry of using a free version of a commercial software which isnt really on for me as I work for a uk government agency.
I think that NetFlow version 7 is not problem for most of netflow analyzers. 99% of all supports version 5, 7 and 9. In the version 5 and 7 you can get a static list of fields - more information you cannot get, because it is a static format. You can check the fields on the: http://netflow.caligare.com/netflow_format.htm
But you have right, that some analyzers don't report all fields (but usually you need only IP addresses, ports ...). Which information do you need to see?
On 6500 in hybrid mode, you need to configure netflow on both parts (MSFC and supervisor)... see netflow pages for configuration.
I'm working for a Caligare company. So I can offer you our product Caligare Flow Inspector (http://www.caligare.com), or I can recommend you other free tools (for example nfsen or ntop), but I think that they doesn't met all your requirements.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.