shop@shop-ThinkPad-SL500:~/Documents$ sudo ./start-gateway.sh
[sudo] password for shop:
net.ipv4.ip_forward = 1
error: "iptables" is an unknown key
error: "-t" is an unknown key
error: "nat" is an unknown key
error: "-A" is an unknown key
error: "POSTROUTING" is an unknown key
error: "-o" is an unknown key
error: "wlan0" is an unknown key
error: "-j" is an unknown key
./start-gateway.sh: 2: ./start-gateway.sh: MASQUERADE: not found
./start-gateway.sh: 3: ./start-gateway.sh: ACCEPT: not found