Connect to volumio by 4g modem

At first, hello and thank you for the great product!

I need to connect to volumio by 4g modem, pluged into raspberry, over web.
I think i’ll do it it by NOIP, and found this solution volumio.github.io/docs/Good_to_ … e_LAN.html

Is it right syntax?
return res.json({ host: ‘http://’+‘myweb.noip.com’});

That’s enough or necessary to install Dynamic Update Client?
noip.com/support/knowledgeb … te-client/

Thanks in advance!