Jitsi authentication only for external (WAN) IP adrresses

we’re using a Jitsi server for our internal communication, which does not require authentication. I have another Jitsi Server using the secure domain setup and it works fine for authenticating via our LDAP. I was just wondering, if it would be possible to have both on the same server - meaning if a connection from an internal IP comes in it would simply assume the user is authenticated (and not prompt for username/password) and if the connection comes from the outside it would ask for the LDAP username/password.