EN104 - Hub IP is on which Port does learn?

We want to use a Hub EN104 to monitor our network traffic and analyze packets with Wireshark.

We connected the hub between two network devices and connected a laptop with the hub so that the hub can do what it is suppoesed to do and send all packages to all connected devices.

One day, he worked, the next day, he doesn't.

We tried everything from the update for Wireshark to unplug all cables from the Hub and plug them back in a different order.

The only thing that helped was to move the laptop to another has never been connected to the hub.

When we reconnected the first laptop on the fouth port it did not work either.

It's as if the hub learns what address Mac is connected to which Ip address - and on which Port, so that it does not work as a true hub all the time.

* IMPORTANT NOTICE *.

Until someone complains, it's 100% legal, because we have two devices and we wrote at the time software that send data via the network cable.

In a machine that is running on a site of our customers, we have difficulties to receive the data we sent in the correct order, if we are setting up a hub and a laptop allows to scan the network to our customers in order to find the part of the network that is causing the loss of information.

Thanks in advance

A brief update on the subject,

We understood that he works in system properly when we do not given DHCP addresses but use addresses that are resolved in all the devices that are connected to the hub.

He works correctly. If we use devices that have addresses given by DHCP, it ceases to function as a hub out of control, sometimes it works for an hour, sometimes more, and most of the time less. It is always searched data, but not to all devices as it should do.

The topic can be closed, we found a solution.

Thanks to all contributors.

Tags: Netgear

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