How to Write a Simple Route

Linux : 

Here what you need to do just open terminal or you can use shortcut (Ctrl+Alt+T) then type :

sudo ip route add ${SUBNET} via ${GATEWAY_IP}

sudo ip route add 172.16.0.0/16 via 10.5.11.1

but if you restart your system its all gone just open the file in "/etc/rc.local" and insert it there without the sudo.

Windows:

Open your cmd(command Prompt) and to the following: 

C:\Windows\system32>netsh.exe

netsh>interface

netsh interface>ip 

netsh interface ipv4>show interface

Idx Met MTU State Name

--- ---------- ---------- ------------ ---------------------------

1 4275 4294967295 connected Loopback Pseudo-Interface 1

27 20 1400 connected VPN Connection

11 4245 1500 connected Local Area Connection

15 4245 1400 disconnected Kerio Virtual Network

netsh interface ipv4>add route 192.168.0.0/16 11 10.5.11.1

Ok.

netsh interface ipv4>add route 172.16.0.0/16 11 10.5.11.1

Ok.

netsh interface ipv4>exit

if you wanted to check your where your routing goes issue the command below : 

netsh interface ipv4>show route