If possible, assign unique subnets to each remote site to simplify VPN configuration. If you must use overlapping subnets, configure VPN subnet translation (NAT) for each site. There is no alternative built-in method to avoid this complexity if you must connect multiple sites with overlapping subnets. The best practice is to ensure each site uses a unique subnet, but if that's not possible, VPN subnet translation is the supported solution. Note: VPN subnet translation (NAT) is only available for Meraki Auto VPN peers and is not supported for IPsec VPN peers. To ensure successful VPN connectivity, each site must use a unique subnet. If overlapping subnets cannot be avoided, you will need to redesign your addressing scheme or use external NAT solutions outside of Meraki.
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