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Since you didn't specify a topology in the server config file, Openvpn works in net30 mode, which is the default. In this mode, every client will be assigned an IP from a /30 subnet, the other usable IP in the subnet will be allocated for the p2p address of that tunnel. The parameters of the ifconfig and route commands in this mode are "local-ip peer-ip&...


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When OpenVPN client is started on the web server, the default route for outgoing traffic is changed to point to the OpenVPN tunnel. After that, when visitors try to connect to the web server, the following happens: Visitor's browser tries to open TCP connection by sending SYN packet to 55.64.64.77. The server replies with SYN/ACK packet, and the response is ...


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I found that the problem was in the OpenVPN Access Server configuration. The iptables configuration did not allow traffic from external subnets to the VPN clients. I solved this by adding the subnet behind the IPSec client to Routing under VPN Settings in OpenVPN Access Server.


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