Possible to exclude internal IPs on graph

[RobInMtl]

Hello all, my first post here so be gentle please... i have an
internal network of 192.168.1.x I have MRTG setup to monitor a 48 port
switch. I would like to only care about traffic from or to the outside
world nothing internally.... IE; if a user transfers a file form the
local server to his pc, and this fil is a couple gigs, it shows up on
the mrtg graph, but this type of transfer i do not care about i am
interested if the same guy/gal downloads a 2 gig file from the net or
is doing something to hog the bandwidth...

Any ideas?

Thanks to all

Rob...
Montreal

[Andy Davidson]

Post by RobInMtl
Hello all, my first post here so be gentle please... i have an
internal network of 192.168.1.x I have MRTG setup to monitor a 48 port
switch. I would like to only care about traffic from or to the outside
world nothing internally....

Hi, --

Thats going to involve quite a bit of work. Possibly :

- a mirror port on switch connected to a sensor device which accounts
internal but not external traffic
- netflow analysis on your router (if supported)

The interface stats on your switch (which snmp on your mrtg server is
querying) will not know which traffic is internal and which is external.

best wishes,
Andy