My modem is 150M Wireless-N ADSL2 + Router
Model No.: iB-WRA150N
with firmware :2.0.0 Build 120626 Rel.13023.
In this device there are 4 LAN ports(RJ45) and 1(RJ11) port for telephone cable.
THERE IS NO WAN PORT WITH RJ45.
I want to connect the internet cable with RJ45.
How can I do this? Is there any way to convert any LAN port to WAN port? Is the device need firmware update?