I just have checked my ipsec tunnel to a friend, he has a pfsense firewall. I get on average around 35-40 Mbit/s, my internet provider gives me 75 Mbit. What I see is during transfer the rates are changing from second to second, sometimes I get nearly 75Mbit, then it goes down to 10, then up again to 60 etc. Pings are usually around 15 ms, but every other second they go up to 350ms (without load on the tunnel). Very strange behaviour and nothing in the logs explaining that. The VPN tunnel is rock solid otherwise. Im puzzled, too. As I wrote earlier in this thread, I had no such problems with a virtual machine running UTM. I got full 75 Mbit via ipsec. Maybe the Realtek drivers are to blame?
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