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How to use mrtg to monitor traffic on your wireless and wired network

MRTG. 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.

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How to use mrtg to monitor traffic on your wireless and wired network

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

  2. 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

  3. How do you know what your customers are doing?

  4. 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

  5. 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

  6. 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

  7. 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

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

  9. 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

  10. Now for some examples

  11. 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://wispconv.mia.net/ppt/mrtg.ppt a bella mia company

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