[vbox-dev] A future direction... VBox 4.1 and GNS3 users

Perry Halbert phalbert at cox.net
Wed May 25 15:59:09 GMT 2011

Perusing the changeset this was not as trivial as it may have sounded.
Personally I think Klaus deserves a *BIG* thank you for taking the time 
to integrate this as well and as fast as he has.
Not to mention that he was not obligated to do so.

Take the rest of the day off! :-)

On 05/25/2011 03:49 AM, Klaus Espenlaub wrote:
> On 25.05.2011 09:50, Alexey Eromenko wrote:
>>>   VBoxManage.exe modifyvm "Windows XP immu 01" --nicproperty2 
>>> sport="10001"
>>>   VBoxManage.exe modifyvm "Windows XP immu 01" --nicproperty2 
>>> dest=""
>>>   VBoxManage.exe modifyvm "Windows XP immu 01" --nicproperty2 
>>> dport="10002"
>>>   (three separate properties!)
>> This also works: (quotes around dport)
>> --nicproperty2 "dport=10002"
> quotes are not needed if there are no spaces or other funny characters...
>> Thanks.
>> Now after trying this I don't see what has changed, besides moving the
>> UDP driver to a deeper level.
>> (network-->udp became network-->generic-->udp)
> Nothing has changed regarding the driver stacking. Just made things 
> mor modular/generic, and having one property containing several 
> properties was so weird that I split them up.
>> Anyway the current way has several problems:
>> 1. Incorrect parameters result in inability to start VM (VBoxManage
>> needs to filter incorrect parameters somehow)
>> If I type in driver incorrectly or parameter incorrectly, I should get
>> some error from "VBoxManage", if possible.
> This wasn't included in the contribution, and with the generic network 
> attachment driver approach it's right now not possible to do any 
> custom checks before the VM is started. For the VirtualBox API 
> everything is just strings with no particular meaning. Only the driver 
> knows what the properties mean and can do sanity checking.
> Even checking the availability of driver is not helpful, as this would 
> prevent loading/saving configs which refer to drivers which are not 
> (yet) installed, which I find worse than detecting a typo only at VM 
> start.
>> 2. Inability to see vm info:
>> VBoxManage showvminfo must show me sport, dest, dport
> You're right... trying to find some time, but I can't promise that I 
> can squeeze it in this or next week.
>> 3. GUI, the same. I expect to see something like:
>> Generic, UDPTunnel="sport=10001;dest=;dport=10002"
>> -or-
>> Generic, VDE="/tmp/vdeswitch"
>> Currently it is impossible to debug virtual topologies.
> Same as 2.
> Klaus
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