Need some help using miniupnp

Hey guys!
I have 2 routers:
Lan 1: 10.0.0.1 (Openwrt)
go through
Lan 2: 192.168.100.1 (Dont know)
I need ask the 'forward' to upnp server in 192.168.100.1.
192.168.100.1 uses a custon port 3333 and i cant change it.

I try on 10.0.0.1:

upnpc -m eth0.2 -a 192.168.100.1 9093 9093 TCP
No IGD UPnP Device found on the network !

Perhaps because the port is not deafult.
Some hint?
Many thanks!

Does 192.168.100.1 even have UPnP capability, and is that feature enabled? If 10.0.0.1 asks 192.168.100.1 to forward a port dynamically, but 192.168.100.1 doesn't have UPnP available or enabled, it's unlikely to work as desired.