How to use mrtg to monitor traffic on your wireless and wired network a bella mia company

A Little Background Josh Easton CTO at Bella Mia, Inc. Been an ISP for 8 years In our 4th year as a WISP Part-15 WISP of the Year WISPCON III Part-15 Member Regular Speaker at WISPCON. Located in South East Wisconsin

How do you know what your customers are doing?

Why should I monitor traffic? To determine how much of your network capacity is left Collect statistics on what your average customer needs for bandwidth Allows you to tell customers when they should buy more bandwidth from you Helps when diagnosing problems

How does mrtg work Collects data via SNMP Record`s an interface`s traffic counters every 5 minutes Places data in a fixed-size log Creates graphs, updates web page

What is SNMP? Simple Network Management Protocol UDP based, port 161 Community name functions as a password Many implementations allow access control via IP address

What do I need to run mrtg Under Windows NT/2000: Mrtg itself ActivePerl FireDaemon Under Unix: Mrtg package or source code Perl, standard on almost all systems

What else do I need? Devices that support snmp A web server to host the page generated by mrtg

How to set it up Set up devices you want to monitor Configure community names, allow machine running mrtg to monitor it Install mrtg and support software Create a configuration By hand with a text editor Using cfgmaker script Or a combination of both Test out configuration Setup automated process to run mrtg periodically Create a cron job or background process

Now for some examples

Presentation presented and created by Questions? Presentation presented and created by Josh Easton Thank you for your attention! A PPT copy of the presentation can also be found online at: http://wispconVII.mia.net/ppt/mrtg.ppt a bella mia company Copyright 2005 bella mia, inc.