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Windows Forum / Virtual PC / May 2008

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VPC2007 Network Issue

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Leaky - 19 May 2008 17:25 GMT
Hi people,

I have got a real strange issue here.  I have VPC running fine and dandy on
one machine and it is able to connect to the network fine.  However, I have
another identical machine (hardware wise) which I am trying to run the same
vpc (Windows XP SP2) on it and connect to a network, and it is failing.

The strangest thing about it is that the vpc gets assigned its IP settings
properly from the network DHCP, but then after that, I cannot ping anything
apart from the local host.  I cant even ping the DHCP server that I just got
my IP settings from!?

Any ideas?

Cheers
Colin Barnhorst - 19 May 2008 17:45 GMT
Are you running a copies of the same vm on both?  Unless you change the MAC
on one of them you would get a conflict.

> Hi people,
>
[quoted text clipped - 12 lines]
>
> Cheers
Leaky - 20 May 2008 09:54 GMT
Im not running them at the same time.  I have tried removing the mac address
out of the vmc file so it regenerates it.

This is very strange!

> Are you running a copies of the same vm on both?  Unless you change the
> MAC on one of them you would get a conflict.
[quoted text clipped - 15 lines]
>>
>> Cheers
Leaky - 20 May 2008 10:16 GMT
Even more odd, is that I have just shared out the image and added it to ms
vpc on another machine (same spec) and started it up there and it works
fine.

Ive been told that there isnt any funky switches here that only allow 1 IP
address per port, so it must be something specific to that machine.

Cheers

> Im not running them at the same time.  I have tried removing the mac
> address out of the vmc file so it regenerates it.
[quoted text clipped - 20 lines]
>>>
>>> Cheers
SaGS - 20 May 2008 15:12 GMT
> Even more odd, is that I have just shared out the image and added it to ms
> vpc on another machine (same spec) and started it up there and it works
> fine.

When you use the 'New Virtual Machine' wizard to add an existing VM, it
automatically changes the MAC address (at least VPC2007 does this).

> ...
Leaky - 20 May 2008 15:25 GMT
Well, i ran it up and it had the same mac address as when it is ran on the
offending PC, so it isnt the mac address.

>> Even more odd, is that I have just shared out the image and added it to
>> ms vpc on another machine (same spec) and started it up there and it
[quoted text clipped - 4 lines]
>
>> ...
Bo Berglund - 20 May 2008 17:25 GMT
>>> Even more odd, is that I have just shared out the image and added it to
>>> ms vpc on another machine (same spec) and started it up there and it
>>> works fine.
>>
>> When you use the 'New Virtual Machine' wizard to add an existing VM, it
>> automatically changes the MAC address (at least VPC2007 does this).

>Well, i ran it up and it had the same mac address as when it is ran on the
>offending PC, so it isnt the mac address.

You should always create a new guest when you copy your virtual
machine to another host. At the disk step just select the copied vhd
file and you will have a guest running with the appropriate hardware
emulation and a unique MAC address. Don't copy the vmc file.

Bo Berglund
 
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