You have to have a compatible version of the networking code. The best way is to compile the x86_64 version from the sources bundled with the dingoo build. I suggest the PC is the server, it's more reliable for this task.
they connected (PC version and Dingoo version), but Dingoo version act like gamepad for pc version. When I put buttons on dingoo -> i play duke on dingoo and on PC in one time....
I'd try compile on PC eduke32 (Changelog: Release #3 08/11/2010 updated the game to svn1724) version svn1724, but they can't connected, PC version say that dingoo's version is too old (duke is a hystory) ...
may be u have normal versions or try somehow do it itself? And tell me and to other how play multiplayer with dingoo and PC?