How to Setup SoftEther in Ubuntu

download then install

tar xzvf softether-vpnserver-v2.00-9387-rtm-2013.09.16-linux-x86-32bit.tar.gz
cd vpnserver
make

command line

./vpnserver start
./vpncmd
ServerPasswordSet
HubCreate VPN
Hub VPN
SecureNatEnable

use port 992 to connect with Server Manager from windows

Client

/etc/sysctl.conf : net.ipv4.ip_forward=1

ip addr show vpn_vpn
sudo dhclient vpn_vpn
ip addr show vpn_vpn
ip neigh
sudo ip route add 51.254.87.79/32 via 192.168.43.1 dev wlp3s0
sudo ip route del default
sudo ip route add default via 192.168.30.1 dev vpn_vpn

References
https://www.digitalocean.com/community/tutorials/how-to-setup-a-multi-protocol-vpn-server-using-softether
http://lukeluo.blogspot.fr/2013/11/how-to-set-up-softehter-vpn-client.html
https://blog.harshillodhi.co.in/softether-vpn-ubuntu-linux-client-configuration-behind-http-proxy/