Hi I just tested a bit more what is possible with DOS networking and VirtualBox.
I always wondered why I need to choose "Bridged Adapter" in the guest network settings to establish a FTP connection between host and guest. Because that means the connection needs the physical router in my LAN. It should be possible to make a connection between the host and the FreeDOS guest only locally, even when I am not connected to a physical network. Normally this is possible by choosing "NAT" in the guest network settings. Then you need to activate port forwarding. Either in the GUI, choosing the guest, choosing "Network" - "Advanced" - "Port Forwarding". Or by using the terminal and commanding: VBoxManage modifyvm "nameoftheguest" --natpf1 "guestftp,tcp,,2121,,21" (This forwards all TCP traffic from the host port 2121 to the guest port 21.) If I do this, the following happens: FreeDOS 1.1 boots and the network is up. mTCP dhcp gets network address 10.0.2.15 I start mTCP ftpsrv I connect with Mac OSX terminal ftp client. I login. Then, when I try to list the directory, there is a timeout of 1 minute and 17 seconds. After that it tells me "PORT command successful" and everything seems to work. Here the log. ftp> open 127.0.0.1 2121 Connected to 127.0.0.1. 220 mTCP FTP Server Name (127.0.0.1:uhansen): user 331 User OK, send Password Password: 230 User logged in Remote system type is UNIX. Using binary mode to transfer files. ftp> ls 227 Entering Passive Mode (10,0,2,15,8,82) ftp: Can't connect to `10.0.2.15': Operation timed out 200 PORT command successful 150 Sending file list drwxrwxrwx 1 ftp ftp 0 Dec 28 1980 DRIVE_C Is it possible, the client is trying to connect to 10.0.2.15 instead of 127.0.0.1 2121 ? But from there on everything seems to work. Unfortunately I had no success with Filezilla and Forklift (my favorite filemanager on the Mac). If I connect with Filezilla and try to list the directory I get: "425 Cant open connection - please try again". Then the connection is closed. Status: Verbinde mit 127.0.0.1:2121... Status: Verbindung hergestellt, warte auf Willkommensnachricht... Antwort: 220 mTCP FTP Server Befehl: USER user Antwort: 331 User OK, send Password Befehl: PASS ******** Antwort: 230 User logged in Befehl: SYST Antwort: 215 UNIX Type: L8 Befehl: FEAT Antwort: 211-mTCP FTP server features: Antwort: MDTM Antwort: SIZE Antwort: 211 End Status: Der Server unterstützt keine Nicht-ASCII-Zeichen. Status: Verbunden Status: Empfange Verzeichnisinhalt... Befehl: PWD Antwort: 257 "/" is current directory Befehl: TYPE I Antwort: 200 Type set to I Befehl: PASV Antwort: 227 Entering Passive Mode (10,0,2,15,9,244) Befehl: LIST Antwort: 425 Cant open connection - please try again Fehler: Verzeichnisinhalt konnte nicht empfangen werden Fehler: Verbindung vom Server geschlossen There are some other modes for networking in VirtualBox: "NAT network" and "Host-only Adapter" seemed promising. Unfortunately in both cases the VirtualBox internal DHCP server (that works great in "NAT" mode) isn't working with mTCP dhcp and WATTCP programs that use dhcp. If I use Debian 7 as guest instead of FreeDOS 1.1 the Host-Only adapter works as expected. Any ideas? Perhaps there is a simple explanation? Thanks!! Have a good night. ------------------------------------------------------------------------------ Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/ _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
