The result of route -n (**server**)
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.5.1 0.0.0.0 UG 0 0 0 eth0
10.8.0.0 0.0.0.0 255.255.255.0 U 0 0 0 tun0
10.15.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0
192.168.1.0 10.8.0.2 255.255.255.0 UG 0 0 0 tun0
192.168.2.0 10.8.0.2 255.255.255.0 UG 0 0 0 tun0
192.168.2.0 0.0.0.0 255.255.254.0 U 0 0 0 eth0
192.168.5.0 0.0.0.0 255.255.254.0 U 0 0 0 eth0
192.168.5.66 0.0.0.0 255.255.240.0 U 0 0 0 eth0
The result of route -n (**client1**)
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 10.8.0.1 128.0.0.0 UG 0 0 0 tun0
0.0.0.0 192.168.2.1 0.0.0.0 UG 0 0 0 enp0s3
10.8.0.0 0.0.0.0 255.255.255.0 U 0 0 0 tun0
128.0.0.0 10.8.0.1 128.0.0.0 UG 0 0 0 tun0
192.168.1.0 10.8.0.1 255.255.255.0 UG 0 0 0 tun0
192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 enp0s3
192.168.5.0 10.8.0.1 255.255.255.0 UG 0 0 0 tun0
192.168.5.66 192.168.2.1 255.255.255.255 UGH 0 0 0 enp0s3
The result of route -n (**client2**)
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 10.8.0.1 128.0.0.0 UG 0 0 0 tun0
0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 wlp4s0
10.8.0.0 0.0.0.0 255.255.255.0 U 0 0 0 tun0
128.0.0.0 10.8.0.1 128.0.0.0 UG 0 0 0 tun0
192.168.1.0 10.8.0.1 255.255.255.0 UG 0 0 0 tun0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 wlp4s0
192.168.2.0 10.8.0.1 255.255.255.0 UG 0 0 0 tun0
192.168.5.0 10.8.0.1 255.255.255.0 UG 0 0 0 tun0
192.168.5.66 192.168.1.1 255.255.255.255 UGH 0 0 0 wlp4s0