invalid MACAddress

[ciapecki]

I have a following issue,
I need to set a MACAddress to my MAC address that begins with 1D-00-.......

but I cannot do that because:
MACAddress is not accepted by the pattern

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 '[0-9A-Fa-f][02468ACEace][0-9A-Fa-f]{10}'

as you can see I cannot put D on the second place.

I already tried to change this value in .xml config file (the eror from above about the pattern)
and as well:

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VBoxManage modifyvm xp_obi_40new --macaddress1 1D0012345678 

which results in:

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ERROR: Invalid MAC address format
Details: code NS_ERROR_INVALID_ARG (0x80070057), component NetworkAdapter, interface INetworkAdapter, callee nsISupports
Context: "COMSETTER(MACAddress)(Bstr(macs[n]))" at line 1607 of file VBoxManageModifyVM.cpp

whereas this works fine with A instead of D on second place:

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chris@chris-ub:~/.VirtualBox/Machines$ VBoxManage modifyvm xp_obi_40new --macaddress1 1A0012345678
VirtualBox Command Line Management Interface Version 3.0.0
(C) 2005-2009 Sun Microsystems, Inc.
All rights reserved.

chris@chris-ub:~/.VirtualBox/Machines$ 

Is there a reason for that? or any possible workaround?

thanks,
chris

[vbox4me2]

What if you edit the xml manually?

[ciapecki]

What if you edit the xml manually?

As already written before i tried that.
When changing in .xml file I get:

MACAddress is not accepted by the pattern '[0-9A-Fa-f][02468ACEace][0-9A-Fa-f]{10}'

[Sasquatch]

I don't remember where I read it, but I do remember that virtual machines are bound by certain rules for virtual NICs when it comes to MAC addresses. You can't use just any address.
Why do you need that specific MAC address anyway? You can change the MAC address in the OS itself too in the properties of the NIC, if the driver allows it.

[ciapecki]

I don't remember where I read it, but I do remember that virtual machines are bound by certain rules for virtual NICs when it comes to MAC addresses. You can't use just any address.
Why do you need that specific MAC address anyway? You can change the MAC address in the OS itself too in the properties of the NIC, if the driver allows it.

I tried changing in guest windows xp (to 1D00....) and I see it changed in ipconfig /all, but then I receive no packages through it.
when I change in geust windows xp to 1A00..... then networking works fine (but this does not solve my MAC issue see below)

I really do not understand why the pattern that is checked by VB is:
'[0-9A-Fa-f][02468ACEace][0-9A-Fa-f]{10}'

and why it's not
'[0-9A-Fa-f]{12}' => why some values on second place are forbidden

and one of our corporate applications associates your account based on the MAC address.
(I don't want to provide to our iT department any other MAC address because there's a possibility that the conflict occurs when 2 same MAC addresses will be in our LAN)