Draw a network diagram of desired network
Make a plan, and detail the user requirements clearly
a. identify user/server or groups of users, including admin
b. identify what traffic flow they need.
You will need
one wireguard interface on router with an IP address.
All clients get assigned a wireguard IP within the subnet
You will need appropriate firewall rules on input chain and forward chain
You may need IP routes but only if another router is in the mix........
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