ifconfig eth1 192.168.0.2
ifconfig wlan2 192.168.100.2
hostapd -B /etc/hostapd_wlan2.conf
iperf3 -s
iperf3 -c 192.168.100.2
[SUM] 0.00-10.00 sec 2.27 GBytes 1.95 Gbits/sec 0 sender
[SUM] 0.00-10.00 sec 2.27 GBytes 1.95 Gbits/sec receiver