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Ticket Resolution Summary Owner Reporter
#18 fixed [feature-request] VirtualBox Networking Model - new idea Technologov
Description
  • Why is the TAP driver is "so needed"?

You say that Linux has something like this already, so you provide it only for Windows.

  1. Actually, all Windows NT-based systems has something like this included.

The MS loopback can be added via Control Panel/Add Hardware/New Hardware/Manual/Network Adaptors/Microsoft. It is treated as just another NIC. Does your TAP driver provide you with features that you *absolutely* must-have? If not, then it's better to use the MS one, because it's signed. (and gives no stupid driver signature warnings during adding of an extra NIC)


Actually, I think we can get much more far *without* any such TAP drivers at all.


  1. I think that the current networking model needs new revision: (if I

understood your networking model correctly) : it can be much more scalable, if it will be done the "Microsoft Virtual PC 2004"-way; (or if you hate MS way, then look at the Open-Source emulator "Dynagen"-way)

that is: I think that we don't have to use any such TAP driver at

all. We can use the host network interface directly - of course we need some way to enumerate them - two ways exists: Windows Registry or WinPCap. (BTW: Open-Source Wireshark, while not an emulator, also uses this technique)

With this approach hubs will be created automatically, without any need to define bridges manually. Windows 2000 host will be supported much better this way (because AFAIK it doesn't have bridging) and Windows XP host won't be limited to one bridge as it is now.

As a bonus, the Linux host networking will become piece-a-cake - instead of manually creating TAP interfaces and then bridging them to real host interfaces (manually again, all via command-line), this new approach will enable to integrate it all nicely within a GUI so click-click-click will solve it all. Basically a Linux user, working with a GUI-only, will be able to achieve host-networking effect under Linux very easily !

The possible downside costs is an extra dependency: libpcap/WinPCap (to make things cross-platform).

Please be patient, because I might be incorrect in some cases; after-all I looked at your software for only one day. Please tell me where I'm right and where I'm not.

-Alexey Eremenko (CCNA, Cisco Certified Network Associate)

(originally sent :vbox-users@…

date Feb 7, 2007 10:49 PM)

#19 fixed VirtualBox crash when cancel mounting ISOs on XP host Technologov
Description

my first bug: (leads to VirtualBox crash on XP host) Software: Windows XP Pro SP2 Eng (no additional patches), VirtualBox 1.3.2. Full.

step to reproduce: (occurs always) VM settings->CDROM->mount ISO image->Virtual Disk Manager->CD/DVD Images->remove all ISOs in list->Add ISO->press "cancel" (during File Open dialog)

Additional Info: when I start: "File->Disk Manager" manually, this doesn't happen on XP. Also, it doesn't happen on openSUSE 10.2 Linux host.

-Alexey Eremenko

(original sent: vbox-users@…

cc hasenmueller@… date Feb 7, 2007 3:57 PM)

#20 wontfix [feature-request] Win9x (95/98/98SE/Me) support as Guest OS Technologov
Description

Please support Win9x as a guestOS (primarily 98 is needed).

Plz do so for the folowing reasons:

a) Those OSes are still widely used b) Virtualization software (such as this) is heavily used for software QA purposes of backward-compatibility. Win9x is a supported platform for large number of software (both commercial and OSS), so it cut costs considerably. This is very big market that both VMware and VirtualPC supports well. c) It's still needed by legacy software that cannot be run on newer OSes that isn't updated anymore. d) For Windows-networks simulation, Win9x has lower memory and CPU requirements. This also helps if you have not-so-powerful host. e) help desks - consumer support for Win9x is still a requirement for many corporations and ISPs. Virtualization really helps here.

Currently, it installs, but fails to run, in both normal and safe modes it crashes on first boot. I would like to see this issues resolved, and later see Guest OS integration for Win9x.

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