Comment changer le network range pour installer une connexion VPN ?

Bonjour,

je voulais installer une connection VPN à mon mac à la maison, mais je ne réussis pas à connecter au serveur via le VPN. Selon notre spécialiste IT, le problème est comme suit:

"The Office network has the same range of addresses (192.168.0.xxx) as your home network.
The main consequence is that the computer is not sending local traffic through the VPN software since it’s local: the RDS server’s IP address is 192.168.0.10, so it is supposed to be on your local network but it is not. Therefore the traffic between your mac & the vbb network cannot pass through the vpn software.
There is an easy way to solve this. change the network range from 192.168.0.xxx into something like 192.168.1.xxx .. .this will fix your issue. "

Par contre, je ne réussis pas de changer le 'network range' qu'un pourrais m'aider?

merci d'avance!