You need two NICs
From: [email protected] [mailto:[email protected]] On Behalf Of It Manager Sent: Wednesday, October 12, 2016 11:23 PM To: [email protected] Subject: [Ntop] Help with setting up Hi All, I am the network manager for a large high school in Melbourne, Australia. I'm currently evaluating ntopng to try to see how well it will help me manage my network. I have installed Ubuntu 16.04LTS on a new desktop computer and have installed the latest ntopng according to the instructions. It seems to be installed and working well. However, since the laptop is not "inline" with my network, I don't see too much traffic. I have plugged the computer into my main switch. However, every time I put the switch into "port-mirror" mode, I lose connection with the ntopng computer completely. I don't really know much about port-mirroring, and am wondering if this is normal? I tried adding another network card (albeit an old USB network card) with a second connection and IP address, but that also loses connection when I put the switch port into mirror mode. Any help would be appreciated. Regards, Chris Stebbing, Network Manager, Lilydale High School. _____
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