Hi Dave,
thanks for the response. I have added a second NIC but have the same
problem. Every time I enable port-mirroring on the port connected to
enp2s0f0, both network cards stop responding. This is my configuration at
present.
enp1s0 Link encap:Ethernet HWaddr 98:de:d0:00:d4:b5
inet addr:10.174.64.71 Bcast:10.174.79.255 Mask:255.255.240.0
inet6 addr: fe80::9ade:d0ff:fe00:d4b5/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:473954 errors:0 dropped:1856 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:69961253 (69.9 MB) TX bytes:648 (648.0 B)
enp2s0f0 Link encap:Ethernet HWaddr f4:4d:30:46:7b:cf
inet addr:10.174.64.72 Bcast:10.174.79.255 Mask:255.255.240.0
inet6 addr: fe80::f64d:30ff:fe46:7bcf/64 Scope:Link
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:475281 errors:0 dropped:1856 overruns:0 frame:0
TX packets:1389 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:70100540 (70.1 MB) TX bytes:383981 (383.9 KB)
Cheers,
Chris.
On 14 October 2016 at 02:23, Dave Davis <[email protected]> wrote:
> You need two NICs
>
>
>
>
>
> *From:* [email protected] [mailto:ntop-bounces@
> listgateway.unipi.it] *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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