Windows 10 - NAT - Port forwarding & IP masquerade

I'm looking for a way to get iptables functionality in windows 10. I enabled IP routing and I need to forward tcp data to another host (port 8080) and then forward his response while masquerading IP. In linux I was able to do this using the following (Where $1 = < internal IP >, $2 = 80, $3 = 8080, $4 = tcp)

iptables -t nat -A PREROUTING -p $4 --match multiport --dports $2 -j DNAT --to-destination $1:$3 
iptables -A FORWARD -p $4 --match multiport --dports $2 -d $1 -j ACCEPT
iptables -t nat -A POSTROUTING -j MASQUERADE

Is there a way to achieve similar functionality in Windows 10?

Solution 1:

Windows netsh can setup a proxy to allow administrators to proxy ipv6 traffic over ipv4. Netsh also has an option to configure a proxy for ipv4 to ipv4.

For your setup use netsh interface portproxy add v4tov4 listenport=80 connectaddress=127.0.0.1 connectport=8080 replacing the 127.0.0.1 with the address you wish to proxy to.

here's a little breakdown on the command.

netsh interface portproxy selects interface that handles the tunnels. add v4tov4 to create a ipv4 to ipv4 tunnel. listenport=80 for the port you want the clients to connect. connectaddress=127.0.0.1 is the remote address that the clients will be proxied to. connectport=8080 is the remote port.

you can also use listenaddress= if you only want the proxy to be available on one interface.

For more info https://technet.microsoft.com/en-us/library/cc731068(v=ws.10).aspx

Solution 2:

At least for test purposes I was able to use the following utility to forward both TCP and UDP

https://sourceforge.net/projects/pjs-passport/

It's for XP, but it works on Win10 also.