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i've put together some notes and a pair of screenshots describing
a method we used to add network traffic (and net4801 enviromental
data - Temperature, Vcc, Vpower) graphs to m0n0wall.

full details here:
http://www.squires-eng.com/graphinfo.html

the data is collected (via cron job) using SNMP for the network
interfaces, and some parsing of env4801 program output for the
enviromental data. it is stored in a fixed size "round robin"
database.

lots of different custom graphs could be used to pull up the
data - the ones i made show hourly, daily, weekly, monthly,
and yearly data.

the data is persisted across power cycles by periodically copying
the database to /cf (and using that if it exists at startup).

i thought all of you m0n0wall users might be interested and see some
ways of doing things - see the web page for all the details - have fun!

regards,
jay w.
squires engineering
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