The 6LoWPAN IoT gateway functions as a border router in a 6LoWPAN network, connecting a wireless IPv6 network to the Internet. The use of NAT64 allows to address IPv4 servers from any 6LoWPAN node. Therefore, e.g. sensor data from the radio network can be transmitted to servers located anywhere in the internet. In addition to the 2.4GHz radio interface , an extra sub - GHz transceiver (CC1200) also allows the use in the frequency band 868 or 915MHz. The connection to the Internet takes place via a 10BASE-T Ethernet interface, implemented using a Microchip Ethernet Controller (ENC28J60). The software for this platform is based on the open source operating system “Contiki” and is available on Github. The gateway is available in a version without casing for development purposes.