Netsplit - Pocket-Sized Passive Ethernet Tap

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  • Regular price SFr. 20.00
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Meet the Swiss pocket knife of network traffic inspection

Netsplit is a passive Ethernet tap device, making it easy to sniff packets across Ethernet links. Place the Netsplit between two devices and monitor network traffic on the tap ports.


Refer to the diagrams in the pictures for a visual description.

What's included?

  • Netsplit
  • Plastic cover (green)

How it works

This works by forcing the devices into 10/100 mode (prohibiting gigabit-speed comms) also known as "Fast Ethernet", which is well suited for passive monitoring. The two ports at the ends of the Netsplit are wired together normally as would a standard cable. However, their respective transmission lines are mirrored to the center "tap" ports.

Silent monitoring

Because only the transmission lines are mirrored to the center "tap" ports, there is no risk of inadvertently sending out packets which would trip up some IDS or NMS. No need to worry about carefully disabling all transmissions from the "listening" host, as these will simply be filtered out by the Netsplit.

Fully passive operation

Operating at "Fast Ethernet" (10/100) speeds allows fully passive monitoring, implying no batteries are required. This makes the Netsplit a perfect little gadget to always have handy, ready to whip out at any moment to start sniffing some packets.

Print your own cover

The STL file for the back cover is available for download here:

Feel free to modify it and/or print your own version for a custom look!

IMPORTANT NOTE: THIS IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED.

IF YOU ARE PURCHASING THIS, IT IS ASSUMED YOU KNOW HOW TO USE IT AND WHAT YOU ARE DOING.

THAT BEING SAID, YOU ARE REQUIRED TO OBEY THE LAW AND ARE PROHIBITED FROM USING RINGTAIL PRODUCTS FOR ANYTHING OTHER THAN LEGITIMATE PURPOSES.

RINGTAIL WILL NOT BE HELD RESPONSIBLE FOR ANY DAMAGE CAUSED AS A RESULT OF USING OUR PRODUCTS.

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