Go to Security SD-WAN > Configure > Site to site VPN > Local Networks. You should see you local subnets there. Select which ones you want to participate in the vpn
Darren O'Connor | uccert.co.uk
https://www.linkedin.com/in/darrenoconnor/
I'm not an employee of Cisco/Meraki. My posts are based on Meraki best practice and what has worked for me in the field.