I’ve been working a lot on the router problem recently. I’ve determined that it is indeed the DHCP vendor class identifier that is sent to resnet’s dhcp server that causes the routers to be blocked. If I could change DHCP option 60, the “Vendor Class Identifier” from udhcpc’s default to the Windows default of “MSFT 5.0″ then resnet would be none the wiser.
I don’t seem to have the technical know how to do this though. I’ve contacted the busybox guys and the DD-WRT guys to get some more info.
After talking with the busybox dev’s it appears that there is currently no way to specify the vendor class identifier from the command line. I’m working with them now to patch it so that the option can be specified via command line argument. If these patches go through I’ll have to work with the DD-WRT guys to get the new busybox implemented. I’d also like to get a nice web interface for the arguments so that I can pass them without having to write my own custom scripts.