Usage of vtun:
  -S  server mode
  -c string
      tun interface cidr (default "172.16.0.10/24")
  -c6 string
      tun interface ipv6 cidr (default "fced:9999::9999/64")
  -certificate string
      tls certificate file path (default "./certs/server.pem")
  -compress
      enable data compression
  -dn string
      device name
  -f string
      config file
  -g  client global mode
  -host string
      http host
  -isv
      tls insecure skip verify
  -k string
      key (default "freedom@2023")
  -l string
      local address (default ":3000")
  -mtu int
      tun mtu (default 1500)
  -obfs
      enable data obfuscation
  -p string
      protocol udp/tls/grpc/quic/utls/dtls/h2/http/tcp/https/ws/wss (default "udp")
  -path string
      websocket path (default "/freedom")
  -privatekey string
      tls certificate key file path (default "./certs/server.key")
  -psk
      enable psk mode (dtls only)
  -s string
      server address (default ":3001")
  -sip string
      server ip (default "172.16.0.1")
  -sip6 string
      server ipv6 (default "fced:9999::1")
  -sni string
      tls handshake sni
  -t int
      dial timeout in seconds (default 30)
  -v  enable verbose output

scripts/build.sh

sudo ./vtun-linux-amd64 -s server-addr:3001 -c 172.16.0.10/24 -k 123456

sudo ./vtun-linux-amd64 -s server-addr:3001 -c 172.16.0.10/24 -k 123456 -g

sudo ./vtun-darwin-amd64 -s server-addr:3001 -c 172.16.0.10/24 -k 123456 -g -sip 172.16.0.1

.\vtun-win-amd64.exe  -s server-addr:3001 -c 172.16.0.10/24 -k 123456 -g -sip 172.16.0.1

sudo ./vtun-linux-amd64 -S -l :3001 -c 172.16.0.1/24 -k 123456

  # Enable ipv4 and ipv6 forward
  vi /etc/sysctl.conf
  net.ipv4.ip_forward = 1
  net.ipv6.conf.all.forwarding=1
  sysctl -p /etc/sysctl.conf
  # Masquerade outgoing traffic
  iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
  iptables -t nat -A POSTROUTING -o tun0 -j MASQUERADE
  # Allow return traffic
  iptables -A INPUT -i eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT
  iptables -A INPUT -i tun0 -m state --state RELATED,ESTABLISHED -j ACCEPT
  # Forward everything
  iptables -A FORWARD -j ACCEPT

docker run  -d --privileged --restart=always --net=host --name vtun-client \
netbyte/vtun -s server-addr:3001 -c 172.16.0.10/24 -k 123456

docker run  -d --privileged --restart=always --net=host --name vtun-client \
netbyte/vtun -s server-addr:3001 -c 172.16.0.10/24 -k 123456 -g

docker run  -d --privileged --restart=always --net=host --name vtun-server \
netbyte/vtun -S -l :3001 -c 172.16.0.1/24 -k 123456