Well, what a surprise - An original Pentium (P54C) at 100MHz manages about 5Mbps average upload throughput and about 3.5Mbps average download throughput doing both Wireguard tunneling and NAT on said Wireguard tunnel under Linux 6.14.9. Without Wireguard but still doing NAT, it's about 15Mbps down and 22Mbps up, which all in all is a lot quicker than I would've ever expected from that chip! :neocat_surprised: