Solved

Measuring bandwidth usage per computer on network

Posted on 2008-11-02
5
1,078 Views
Last Modified: 2016-10-28
I have a windows server 2003 machine as my NAT server. It has two NICs in it, one for lan, one for internet. How can I keep track of my network's monthly internet usage? In particular, identify which computers / IPs on the local area network are consuming how much bandwidth?
0
Comment
Question by:Frosty555
  • 3
  • 2
5 Comments
 
LVL 11

Expert Comment

by:packetguy
ID: 22865491
Get PRTG Network Monitor 7 (http://www.paessler.com) They have a 30-day trial version. It can sniff all the traffic passing through your server and generate all the usage stats you could possibly imagine. Paessler has a free version that supports up to ten sensors, but I can't remember if that include the traffic sniffing feature. In any event, it's no very expensive (~$500), and you can likely find all kinds of other uses for it's network monitoring abilities.

I've attached a screen shot showing just one of its many reports. It can track total traffic by IP address, Ethernet switch port, IP protocol, or any of several other criteria. The screen shot is from the older version 6; the current version 7 has even more features.


PRTG-Sample-Screenshot.jpg
0
 
LVL 31

Author Comment

by:Frosty555
ID: 22868450
I am currently using PRTG Traffic Grapher to accomplish some basic monitoring. It does include the packet sniffer which I can connect to the WAN/PPP protocol to monitor internet usage.

But it only sees outside IPs. Meaning it can tell me which websites I download the most from (just like the screenshot you included), but it can't tell me which computers on my LAN are using the most bandwidth.
0
 
LVL 11

Accepted Solution

by:
packetguy earned 500 total points
ID: 22868558
That's because you're sniffing the server's WAN interface. Switch to the LAN nic and you willbsee the traffic before it's NATted.
0
 
LVL 31

Author Comment

by:Frosty555
ID: 22874048
I'll give it a try, but wouldn't I also see all the regular LAN traffic between any computer and the server as well? E.g. remote desktop sessions, local transfer of files etc?
0
 
LVL 31

Author Comment

by:Frosty555
ID: 22913621
okay, i can setup filters in prtg traffic grapher to filter out traffic between the server and the other hosts, and only listen to traffic that goes from external IPs to internal, or vice versa.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Join & Write a Comment

#Citrix #Citrix Netscaler #HTTP Compression #Load Balance
ADCs have gained traction within the last decade, largely due to increased demand for legacy load balancing appliances to handle more advanced application delivery requirements and improve application performance.
This video gives you a great overview about bandwidth monitoring with SNMP and WMI with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're looking for how to monitor bandwidth using netflow or packet s…
In this tutorial you'll learn about bandwidth monitoring with flows and packet sniffing with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're interested in additional methods for monitoring bandwidt…

744 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now