From: "Rob Jarratt" <robert.jarratt at ntlworld.com> If you want to peer with me using DMC11 let me know. I will need to know your IP/DNS address and a port you want to listen on. You can download a Windows executable of the VAX780 emulation with DMC11 support here: http://sdrv.ms/Lmg33s I am hoping that the DMC11 will be in the next release of SIMH, and perhaps in the PDP11 emulation too. To configure your side you need the following commands: So, does the DMC11 emulation just send DDCMP messages in UDP datagrams, or is it more complicated than that? I've been meaning to add DMC/DMR emulation to Ersatz-11 for centuries, and obviously I'd want to make sure it interoperates with SIMH. (There are already undocumented ASSIGN/DEASSIGN/SET/SHOW XM: commands since ages ago, but the resulting device doesn't actually work.) Thanks, John Wilson D Bit