He is probably talking about this one:
![Greenberet_0-1613344691113.png Greenberet_0-1613344691113.png](https://community.meraki.com/t5/image/serverpage/image-id/16521i2099DE9D9A94B26E/image-size/medium?v=v2&px=400)
On the third party VPN settings the remote destination must be an IP address. DNS names are currently not possible.
So if the remote site has a dynamic IP address, you would have to change it every time manually/via script instead of using the dns service which gets updated automatically