In many provider environments, RADIUS is being used for billing. Don‘t know if Meraki devices are able to provide the needed information. Wouldn‘t count on it though.   Apart from that, @PhilipDAth has provided a very useful other option...as always 😉 ... View more

For the normal IPsec VPNs you'd need to use some kind of DynDNS but the good news is that Meraki MX's automatically have a build-in DynDNS service. You don't need any external services for that: https://documentation.meraki.com/MX/Other_Topics/Dynamic_DNS_(DDNS)#Enabling_Dynamic_DNS   But AutoVPN would be easier if you're building tunnels between MX's in the same organization.   Edit: I forgot you can't use FQDN when configuring IPsec Site-to-Site VPN in MX's. ... View more