Hi, On Sun, Nov 29, 2015 at 6:26 AM, Leroy Tennison <leroy.tenni...@verizon.net> wrote: > If I'm correctly reading into how OpenVPN works the server is in some > sense stateful in that it has to remember the association of the > original source address of a client with the client's VPN address in > order to route a reply packet back to it. Are there other things it > remembers about the connection?
Yes, a lot more. Like the keys to encrypt your traffic with, or OpenVPN's own 'session id'. > Second question, when using UDP as the protocol, what handles the > reliability function? Do the VPN server and client track packet > transmission and receipt by whatever means or do they simply > transmit/receive packets and let the embedded protocol handle reliability? OpenVPN makes a distinction between control traffic (key/config exchange, etc) and data traffic (actual vpn network packets). For control packets, OpenVPN has a reliability layer that ACKs packets, retransmits, etc. For data packets, OpenVPN does not do any of that. (But, when you're using TCP mode, TCP does that, ofc.) -Steffan ------------------------------------------------------------------------------ _______________________________________________ Openvpn-users mailing list Openvpn-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/openvpn-users
