Hi, I'm trying to get a list of export names from the server so I'm sending NBD_OPT_LIST (3) and the server replies with an option type of 0x3000000 instead of 3. I think the problem lies in nbd-server.c:send_reply(). The opt value given is in host byte order but must be send in network byte order. So the code is missing a opt = htonl(opt); Right? MfG Goswin