Windows Networking
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PRTG Graphs
Hi,
I have noticed that usage of my bandwidth is high during the night. My PRTG traffic graph always was show minimum activity during night but now i have equal spikes.
Do you know how to find out what host is using the bandwidth ?
Thanks
Untitled-5.jpg
I have noticed that usage of my bandwidth is high during the night. My PRTG traffic graph always was show minimum activity during night but now i have equal spikes.
Do you know how to find out what host is using the bandwidth ?
Thanks
Untitled-5.jpg
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Dear aucklandnz,
please check the link :
http://download-cdn.paessler.com/download/prtgmanual.pdf
Good Luck
There are two ways that you might consider:
1) Since you have SNMP running already.... you didn't say how/where you get the data shown. If you have managed switches that reasonably isolate the various devices then you might monitor port traffic using PRTG and see which one matches the traffic you're seeing. That's good for looking at traffic patterns.
2) Again, if you have managed switches then you can mirror port-by-port onto a monitoring computer - need a cable for this. I usually use a 2nd NIC with a nonsense private IP address manually entered and connect it to the mirror port on the switch. Then, use Wireshark to sniff/capture the packets at the firewall or modem or gateway. Look at Statistics / Endpoints of the data collected. You want to grab the packets during a peak to see where the traffic is coming from and where it's going to. Alternately you might temporarily insert a tap or a hub for the same purpose.
1) Since you have SNMP running already.... you didn't say how/where you get the data shown. If you have managed switches that reasonably isolate the various devices then you might monitor port traffic using PRTG and see which one matches the traffic you're seeing. That's good for looking at traffic patterns.
2) Again, if you have managed switches then you can mirror port-by-port onto a monitoring computer - need a cable for this. I usually use a 2nd NIC with a nonsense private IP address manually entered and connect it to the mirror port on the switch. Then, use Wireshark to sniff/capture the packets at the firewall or modem or gateway. Look at Statistics / Endpoints of the data collected. You want to grab the packets during a peak to see where the traffic is coming from and where it's going to. Alternately you might temporarily insert a tap or a hub for the same purpose.
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Windows Networking
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The Windows operating systems have distinct methodologies for designing and implementing networks, and have specific systems to accomplish various networking processes, such as Exchange for email, Sharepoint for shared files and programs, and IIS for delivery of web pages. Microsoft also produces server technologies for networked database use, security and virtualization.