creating templates across multiple networks in a single organization
We have a project to replace our 500 Cisco 5505 ASA firewalls with Meraki MX65 devices. The firewalls are grouped into 11 divisions and the ASA have specific IP addresses for each network. It would be best if we can keep the IP structure the same. Our initial thought was to create a template for each 11 divisions. Let us consider the following questions with that in mind. I am looking for a general answer - I do not at this point need to know specifically how to do it.
Division Template design questions: The IP address would need to be assigned manually so how would we do that if using a template: Can the IP address be blank? Within the division we will have ISP connection of DHCP, PPPoE and Static addresses - DHCP would be the default and the Static and PPPoE locations would need to be manually configured. Can that be done after the template is applied? and can that be done in the central office before shipping.
The big Question: After assigning networks to a template using the above adjustments, can a change to that template be mad to (for example) change the DNS server without overwriting the IP addresses or ISP type?