Not sure I recall this particular conversation, but I am making (slow) progress on a user mode DECnet router that runs on Windows and Linux and which I intend to make friendly to those who do not have a fixed IP address (like me). Not sure if that is what you were referring to. Right now I have the Ethernet Initialization sublayer about done for actual Ethernet connections. I still need to do an interface that will interop with Johnny's bridge program, this should be easy when I get to it, when I do it I will add a periodic check that the IP address is still valid by checking against DNS (you would need to be registered on a dynamic DNS service like DynDNS). I believe Johnny does not do this in the bridge because of the temporary halt in packet processing this entails. Personally, this is a price I am willing to pay. I could make it asynch I suppose, but it is harder to do this in a portable manner. Regards Rob On 6 August 2012 16:35, Sampsa Laine <sampsa at mac.com> wrote: I remember there being some discussion about a bridge that would work over TCP (only requiring the server to have a port forward / static IP).. What's the status on this? My ISP (a 3G network that's blazing fast but short on IPs, which means I'm NAT'd on the outside of my network, thus not portwards are possible). Ideally I would like to just point at the server without them knowing anything about my originating IP, perhaps with some form of authentication. Sampsa