NMS LAB4

Transcript NMS LAB4

NMS LAB4
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WEB based SNMP monitoring with MRTG
Basic SNMP config to router Allow SNMP only from
server computer
MRTG
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Free
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easy to use to monitor few router interfaces
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With many routers and switches some other tool might
be better (cacti etc)
MRTG Multi Router Traffic Grapher
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Easy to use www-based router interface traffic grapher
(Config creator creates ready interface monitoring config)
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Can be used to graph other SNMP variables as well
Requirements
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Server with:
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WWW-server (Apache installed on server computer)
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Www-root c:\program files\apache
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Perl (Active Perl installed on server computer)
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MRTG .zip package from
http://people.ee.ethz.ch/~oetiker/webtools/mrtg/pub/
(Check c:\downloads)
MRTG Usage
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Unzip mrtg to c:\temp\mrtg (If directory exist delete it)
Use configmaker to create initial config from SNMP-device
(perl configmaker in Windows) (Workdir to www-servers
webroot/mrtg -folder (Remember to create folder)
Edit config (Check workdir and options)
Use MRTG to create graphs from config (perl mrtg
config.conf
Use indexmaker to create nice index-page (perl
indexmaker)
Needed options and commandline parameters are in
mrtg:s documentation
MRTG ALLWAYS MONITORS TWO VALUES
MRTG conf(1 interface)
### Interface 1 >> Descr: 'Cisco-PIX-Security-Appliance-'outside'-interface' | Name: 'outside' | Ip:
'194.100.201.110' | Eth: '00-06-53-36-83-c9' ###
Target[192.168.254.254_1]: 1:[email protected]:
SetEnv[192.168.254.254_1]: MRTG_INT_IP="194.100.201.110" MRTG_INT_DESCR="Cisco-PIXSecurity-Appliance-'outside'-interface"
MaxBytes[192.168.254.254_1]: 12500000
Title[192.168.254.254_1]: Traffic Analysis for EVTEK Internet connection
All this is
PageTop[192.168.254.254_1]: <H1>Traffic Analysis for EVTEK Internet connection</H1>
needed to
<TABLE>
monitor 2
<TR><TD>System:</TD> <TD>pix.evtek.fi in Espoo-konehuone</TD></TR>
<TR><TD>Maintainer:</TD> <TD>[email protected]</TD></TR>
SNMP
<TR><TD>Description:</TD><TD>Cisco-PIX-Security-Appliance-'outside'-interface </TD></TR>
variables
<TR><TD>ifType:</TD> <TD>ethernetCsmacd (6)</TD></TR>
<TR><TD>ifName:</TD> <TD>outside</TD></TR>
<TR><TD>Max Speed:</TD> <TD>100.0 Mbits/s</TD></TR>
<TR><TD>Ip:</TD>
<TD>XXX.XXX.XXX.XXX</TD></TR>
</TABLE>
Key word
Community
Router IP
Unique identifier
MRTG
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More information on web
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http://oss.oetiker.ch/mrtg/
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http://oss.oetiker.ch/mrtg/doc/index.en.html

NMS LAB4

Transcript NMS LAB4

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