Hi @nadalfan1984, As far as I know dynamic public IP can be used if both firewall are Meraki, since they are using the SDWAN technology feature called Auto VPN. If ever the one of the firewall is a non-Meraki, I typically require that the non-Meraki has the static IP and supports DMVPN (Dynamic Multipoint VPN). Meraki MX can either have dynamic or static IP. Suggested also that the main branch should have a static IP and the branch can by dynamic. Cheers! Terry
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