NetComm NB6 - Manual (Page 29)

YML854 Rev1 NB6, NB6W, NB6Plus4W NB6, NB6W, NB6Plus4W User Guide
www.netcomm.com.au 
4. On the General tab, check out the list of installed network components.
Option 1: If there is no TCP/IP Protocol, click Install.
Option 2: If you have TCP/IP Protocol, skip to Step 7.
5. Highlight Protocol and then click Add.