[cisco-bba] RE: [c-nsp] Static ip address info

Jon Lewis jlewis at lewis.org
Thu Nov 17 08:39:31 EST 2005

On Thu, 17 Nov 2005, Oliver Boehmer (oboehmer) wrote:

> Mark,
> you need to enable Netflow on your virtual-access interfaces as well as
> on the GigE interface, i.e. where you see the "raw" IP traffic, not the
> L2TP-encapsulated traffic..

And assuming you have a unix box, look for the flow-tools package.  You 
can use that to collect netflow exported from the router(s) and generate 
reports showing you what your IPs are up to...or which ones are generating 
traffic and which are not.

You'll probably only be interested in traffic with your IPs as the source 
address, since all the IPs are likely the destinations of everpresent 

  Jon Lewis                   |  I route
  Senior Network Engineer     |  therefore you are
  Atlantic Net                |
_________ http://www.lewis.org/~jlewis/pgp for PGP public key_________

More information about the cisco-bba mailing list