Allow or deny specific IP addresses through VPN interface

Installing and Using OpenWrt Network and Wireless Configuration
2

You need to do Policy Based Routing and you have 3 options:

  1. mwan3 package
  2. pbr package
  3. a set of rules/routes for each internet connection.

If it is only one or two devices, you can go with #3, otherwise the easiest way would be #2

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