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#1 2020-04-16 10:19:52

dext
Member
From: Poland, Kraków
Registered: 2008-02-01
Posts: 98

IP Forwarding performance

Hi,

I have a problem w setting up a VPN server (Wireguard if it's relevant).

This is my test setup:
client  <- vpn -> vpn_server_with_nat <- internet -> test_destination_server

When I try to copy files (or do iperf test) between client and vpn_server_with_nat, the connection is perfect (max and stable bandwidth). Same goes for between vpn_server_with_nat and test_destination_server.
But when I try between client and test_destination_server, it's bad, goes up and down, 50% available bandwidth on average.

I've cover the bases. Nothing is overloaded, connections are stable, no packet loss.

I don't expect a magic solution, but I've run out of ideas and Google quries. Could you please suggest what can I test, try, etc? I'm willing to go deep, because I expect the solution for this to be exceptionally interesting.

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