Question : Configure Router Behind Cable Modem IP for Remote Desktop

I have a router/modem with IP address. (Which has internal IP address as 192.168.1.1)

Now cable modem has cable going into wireless router.(Which has internal IP address as 192.168.15.1)

I have computer on my network with IP address as 192.168.15.99 with is joined with wireless router.

Now the setting is like this :
Modem/Router (192.168.1.1) ---> wireless router (192.168.15.1) ---> Computer (192.168.15.99)

How can I set up my routers that when I have request to connect on cable modem/router's live IP it forwards the remote desktop request to my computer?

Answer : Configure Router Behind Cable Modem IP for Remote Desktop

The only information I could find on converting the SmartAX MT882 to bridge mode was the following link starting at the bottom of page 13. You likely want Bridged + DHCP mode.
http://www.talktalkmembers.com/images/downloads/manuals/SmartAXMT882_ADSL_Router_User_Manual.pdf

The other option would be as per suggestion 1, configure port forwarding on the MT882 as per:
http://www.portforward.com/english/routers/port_forwarding/Huawei/SmartAX-MT882/Remote_Desktop.htm
and then configure port forwarding on the Netgear as per:
http://www.portforward.com/english/routers/port_forwarding/Netgear/WGR614/Remote_Desktop.htm