With the NBN,
You plug a ethernet cable (most Telstra modems come with a Yellow or Grey cable - it is also used to connect the modem to a computer directly) from the Uni-D 1 port until the red WAN port in the back of the modem. This will share the connection from the NTD to the modem.
You plug a ethernet cable (most Telstra modems come with a Yellow or Grey cable - it is also used to connect the modem to a computer directly) from the Uni-D 1 port until the red WAN port in the back of the modem. This will share the connection from the NTD to the modem.