CWMP question

[Sergio Fernández]

Hi!

I would like to know how GenieACS works when it has to send some 
setParameters to some specific CPE behind a NAT.

What do CPEs do? Create a UPnP service to redirect that request to the 
CPE? I've read that this is supported by TR-330, but does GenieACS 
supports it? How about this support on CPEs?

I've asked me such questions because we are working with IP phones from 
GrandStream. Some IP phones doesn't appear in GenieACS listed, but they 
are correctly configured. Sometimes, one magically appears. I don't know 
if this is a NAT problem, because in the laboratory we have only 1 IP 
behind a lot of CPEs. And maybe that's the problem, but I don't know for 
sure.

Thank you!