Look which ip adress is connected on working ports

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Tuning4you

Look which ip adress is connected on working ports

Post by Tuning4you »

Hi,
I'm new with networking. We have an omniswitch 6850 and want an inventory of the network components connected to this switch.

With the commando show interfaces status i know which port is online.
With the commando show mac-address-table i know which mac address is connected on the ports.

For computers I can retrieve the ip by nbtstat - a <<mac-address>>. Some other components are medical apparatuses and this doesn't work.

Is it possible to know the ip addresses connected to the switch?

Kind regards,
Andy
benny

Re: Look which ip adress is connected on working ports

Post by benny »

You can try "show arp" but this will only work properly if the switch is routing for those boxes.

You could also use LLDP but I have some doubts if the medical equipment supports this kind of stuff already.

-benny
MWLosRios

Re: Look which ip adress is connected on working ports

Post by MWLosRios »

With 6.3.1, you can set up sflow to sample traffic on all ports and send it to a collector. Watch it long enough, and you should get a good idea of what systems are flowing traffic through that switch

sflow receiver 1 name collector address a.b.c.d
sflow sampler 1 port-range receiver 1 rate 512 sample-hdr-size 128
sflow poller 1 port-range receiver 1 interval 30
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