Telldus Net

Firmware update

Snoop

• Port 30303 (Net found from net), Port 42314 (data transmit) - ????
• The TellStick Net can be auto discovered on the LAN using UDP broadcast. Sending a package to the broadcast address 255.255.255.255 port 30303 will be responded by any TellStick Net on the network. The packet should only contain the single character 'D' (ascii number 68).The response from the device will be sent back to the same host and port as the originated packet. So any dynamically port can be assigned by the host implementing the auto discovery. The returning packet is constructed in the following way: product:mac address:activation code:firmware. Example: echo -n "D" | nc -4u 192.168.97.60 30303
• TellStickNet:ABCDEFGHIJKL:ABDCEFGHIJ:2
• Product: TellStick Net (TSNET)
• Mac address: AB:CD:EF:GH:IJ:KL
• Code for activation: ABCDEFGHIJ
• Firmware version: 2
Use the source ip-address to determine the address to the device
• Communication with TellStick Net is done over UDP on port 42314. The first string sent contains the command to execute. The following python example sends a disconnection command to a TellStick Net. This will reboot the device.
• from socket import *
• UDPSock = socket(AF_INET,SOCK_DGRAM)
• UDPSock.sendto("A:disconnect", ("192.168.0.155",42314))
• Test using 192.168.0.* net --> Tellstick Net found from 192.168.0.51
• Examples/Tests:
• nc -l 42314 -k -u - listens port 42314 using UDP(-u) and no disconnect(-k)
• echo -n "A:disconnect" | nc -u 192.168.0.51 42314 - reboot
• root@gw> tcpdump -n 'udp and src 192.168.50.223' -XX - capture temperature dumps send to Live!
• tcpdump ether host AC:CA:54:01:99:6F -XX -vvvv - capture based on MAC address

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