When configuring a site-to-site PKI (SSL) OpenVPN setup, an internal route must be configured for the client subnet on the Client Specific Overrides tab set for the client certificate’s common name, using either the IPv4/IPv6 Remote Network/s boxes or manually using an iroute statement in the advanced settings. Each network listed in the IPv4 Remote Network/s and IPv4 Remote Network/s boxes will have an iroute created automatically.