OpenVPN w/BR500 and Static IP

Check  ifconfig-push

„Push virtual IP endpoints for client tunnel, overriding the –ifconfig-pool dynamic allocation.” https://openvpn.net/index.php/open-source/documentation/manuals/65-openvpn-20x-manpage.html

===

–ifconfig-push local remote-netmaskPush virtual IP endpoints for client tunnel, overriding the –ifconfig-pool dynamic allocation.The parameters local and remote-netmask are set according to the –ifconfig directive which you want to execute on the client machine to configure the remote end of the tunnel. Note that the parameters local and remote-netmask are from the perspective of the client, not the server. They may be DNS names rather than IP addresses, in which case they will be resolved on the server at the time of client connection.

This option must be associated with a specific client instance, which means that it must be specified either in a client instance config file using –client-config-dir or dynamically generated using a –client-connect script.

Remember also to include a –route directive in the main OpenVPN config file which encloses local, so that the kernel will know to route it to the server’s TUN/TAP interface.

OpenVPN’s internal client IP address selection algorithm works as follows:

1 — Use –client-connect script generated file for static IP (first choice).
2 — Use –client-config-dir file for static IP (next choice).
3 — Use –ifconfig-pool allocation for dynamic IP (last choice).

===