If Vodafone is your ISP you should know you have a ddns, for some reasons it' s not easy to find, so here we are.
First of all you should toggle expert mode
Then open settings > configuration and click "save your settings on a local machine" (it' s gonna take some time)
Now you should have downloaded a XML configuration file, search now for
vox, you are gonna find something like this:
<ParameterValueStruct> <Name>InternetGatewayDevice.X_JUNGO_COM_RemoteAccess.DnsAlias</Name> <Value xsi:type="xsd:string">voxXXXXXXX</Value> </ParameterValueStruct>
Of course XXXXXXXX is a dummy value,
http://voxXXXXXXX.mynet.vodafone.it/ is your ddns, enjoy! You might need a TLS certificate, certbot is your friend :)