[Freeswitch-users] external ip and Nat

Hello I am working on freeSWITCH 1.10.2 with webRTC. I have a private address on my server, that is translated on a static public IP in order to reach webRTC/FS through Internet. In the vars.xml, i have then indicated this public IP as *external_sip_ip* and *external_rtp_ip *and everything is working. Now, I also want to be able to reach webRTC with its private IP, so what is the value to configure in vars.xml external_sip and external_rtp ? I can not put both public and private IP. thanks for your helpful answers Joe