That is an impressive diagram, I'm going to have to spend some time working through it - thank you.
-----Original Message----- From: Pippin <pippin...@protonmail.com> To: Leroy Tennison <leroy.tenni...@verizon.net> Cc: openvpn-users <openvpn-users@lists.sourceforge.net> Sent: Mon, Nov 11, 2019 6:33 am Subject: Re: [Openvpn-users] Communicating to OpenVPN Hi, Maybe this diagram can help: https://www.synology-forum.nl/index.php?action=dlattach;ts=1553627617;topic=32044.0;attach=44587;image W.k.r. Pippin Sent with ProtonMail Secure Email. ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ On Monday 4 November 2019 05:16, Leroy Tennison via Openvpn-users <openvpn-users@lists.sourceforge.net> wrote: I previously believed that all IP network communication was done at layer 2 via arp and transmitting to the MAC address of the system responding for it's IP address. Then I realized that OpenVPN doesn't have MAC addresses, so how does communication coming into an OpenVPN server from a non-OpenVPN interface get to OpenVPN's tun interface? Is there a Linux facility to examine the routing table and transfer the inbound packet to the interface irrespective of MAC address? If so, can you tell me what it is or point me to some documentation about it? Thanks for the help.
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