Network Traffic Monitor

[TidyTrax]

Does anyone know of a tool to monitor IP traffic over a network??? I have two networks that are joined via a VPN, the VPN is there to fascilitate a route for our VoIP system. Now im thinking that the amount of traffic on the network is interfering with the VoIP system and during busy parts of the day the calls can break up. I need something to check the traffic, preferable with some sort of graphical output to show my client. Anyone got an ideas???

 

[macetali]

try looking at mrtg (multi router traffic grapher). it's a tool that basically monitors traffic over networks. i know the name says router. it just started with network devices such as router but the mrtg has grown to include monitoring of different devices such as servers as well.

what mrtg gives you is the ability to monitor utilization of different components of a device on the network (cpu, network, etc). this means that if you need to look at the ip traffic, you should look at the utilization of a lan port on the switch or router or hub or server.

mrtg will give you graphical utilizations of the different components. it will give you daily, weekly and monthly graphs.

you install mrtg on a machine then install/enable snmp (simple network monitoring protocol, it's widely used monitoring protocol) agents on the different devices. the mrtg machine talks with the devices to get information through snmp.