Take the 2-minute tour ×
Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

I am somehow able to analyze netflow packet using my own netflow collector (build in python). It works for certain ip and CIDR(Classless Inter Domain routing), definitely not overlapping. What is the best way to support VRF(Virtual Routing and Forwarding) in netflow? I guess there is no any metadata in netflow packet for distinguishing either its VRF or not.

share|improve this question

migrated from stackoverflow.com Oct 2 '12 at 10:23

This question came from our site for professional and enthusiast programmers.

    
VRF aware Netflow is available in IOS starting with 12.4(11)T. What's your IOS version? –  favoretti Sep 12 '12 at 18:03
    
You can add vrf input name collection by adding collect routing vrf input to your flow-record. Not sure on top of my head how it will arrive in a packed, but I suppose some sort of tcpdump can help determining that. –  favoretti Sep 12 '12 at 18:09

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.