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My ISP has now put me behind NAT. I no longer get a Public IP assigned to me. Earlier with Public IP I was able to seamlessly do remote desktop to my PC from the internet.

Now my Internet Setup is something like…

A dynamic Public IP at ISP end, a Dynamic Private IP assigned to my router (Dlink DIR 615) or my desktop PC (Windows 7) whichever I connect to ISP’s LAN cable.

A private IP now prevents inbound access.

If I register for IPv6 thru IPv4 Tunnel Broker and configure my PC as per their inputs (I am still learning about IPv6 thru IPv4) will I be able to make an inbound RDP connection over the internet to my Windows 7 PC that is now behind ISP’s NAT where I get Dynamic Private IP and ISP has its Dynamic Public IP?

In case it’s possible, what are the other considerations or enablers for making it happen e,g, does it need any specific ports to be opened by ISP?

Dlink DIR router also has relevant options therein to setup IPv6 in IPv4.

Thanks.

mmp
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1 Answers1

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Yes, but only if you can get the tunnel set up in the first place.

Out of the remaining IPv6 tunnel providers, both HE (Tunnelbroker) and NetAssist only offer raw 6in4 which does not work that well with NATs. While 6in4 can work behind residential NAT, it is going to be very unreliable behind CGNAT, as (unlike UDP or GRE) it's a raw IP-IP tunnel and the ISP's NAT boxes would be unable to distinguish between different people's tunnels.

If you have a few dollars a month to spare, you could rent a server from a VPS hosting company and set up a personal tunnel using a more convenient protocol (e.g. using OpenVPN or ZeroTier). That way you'll get IPv6 and a dedicated public IPv4 address, with ability to port-forward stuff.

Some commercial VPN providers (the kind which lets you connect to the internet) also offer a public IP address and allow incoming connections. (Though usually they only support IPv4 and deliberately block IPv6.)

grawity
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