Re: Simple network monitoring software?
- From: Kurt <kurtl@xxxxxxxxxxxxxxxxx>
- Date: Tue, 23 Sep 2008 20:52:24 -0700
In order to monitor a network you have to have a point where you can see all of the traffic. This generally means a switch that can be configured with a mirror port that will monitor one or more (or all) of the other ports. If you want to monitor on the WAN side, you could get a hub (not a switch) which echos all traffic to every port. Then you need some software that can sniff. Ethereal (now WireShark) does a great job of capturing and analyzing traffic, but won't show you how the bandwidth is being distributed (who the hogs are). If you have a Linux box, you could run bandwidthd or ntop, which will show you the bandwidth hogs by IP address. bandwidthd draws graphs, ntop breaks the usage down in many ways and can be sorted by host. Both will use reverse lookups to translate ip addresses into hostnames if you have a reverse zone in your local DNS. If you want to pay, PRTG is a Windows program that does what bandwidthd does plus tons of more functions. It's all point and click to set up, where bandwidthd requires some configuration file editing (and is only available as source, so must be compiled on your Linux/Unix box).
scooterspal wrote:
Can anyone recommend a shareware or freeware program that will let me.
monitor or test my small office network (8 W2K Dell computers running off a couple of Lynksis routers) to see if there are hangups causing reduced performance?
Thanks!
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- From: scooterspal
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