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Windows 7: Belkin router... An unfamiliar address

18 Mar 2011   #31
FliGi7

XP / Win7 x64 Pro
 
 

I'm not sure, but if you're running a Virtual Machine on an HP machine, it could be using that HP's MAC address to acquire an IP for the virtual machine rather than the virtual machine's adapter MAC.


My System SpecsSystem Spec
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18 Mar 2011   #32
simono1

Windows 7 Pro- 32bit.
 
 

The name "ours" is the name of the computer... is this correct?
My System SpecsSystem Spec
18 Mar 2011   #33
FliGi7

XP / Win7 x64 Pro
 
 

The host name is the name of the computer in full. So, it would be "ours-ay4j91epjq" as stated before. The hyphenated portion is a part of the full computer name. This computer name is sometimes automatically generated by the OS at install from the account name which could have been "ours" and then the machine likes to add a hyphen and a random set of characters to create a hopefully non-conflicting full name for the computer.
My System SpecsSystem Spec
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18 Mar 2011   #34
simono1

Windows 7 Pro- 32bit.
 
 

I'm on the drive with windows 7 now. I have 2 virtual machines, I think.... Windows virtual PC for XP mode, and VMware for that virtual 7 on the external drive. Am I correct at right clicking on each of these after expanding them in all programs, then properties, and looking for the name under the details tab? I see computer name and name there. Looking at both of them this way... I do not see that name "ours" or the other after the hyphen. I am going to restart into the Vista drive to also look.... I'll check back here to see if my idea was the right one... and again, thank you for your time.

Todd
My System SpecsSystem Spec
18 Mar 2011   #35
FliGi7

XP / Win7 x64 Pro
 
 

Just right click on My Computer in any of the virtual machines to get to the full computer name.
My System SpecsSystem Spec
18 Mar 2011   #36
RayFinkle

Windows 7 Pro 64bit
 
 

Fligi7, that was a pretty good idea to consider the possibility of a VM, but I don't think (I am pretty d*mn sure of this) a VM would use the MAC address of a specific hardware vendor, unless you intentionally set it that way. My VirtualBox VMs use a MAC address that comes back Cadmus Computer systems when I do a MAC address lookup. I googled, and apparently, VirtualBox never registered an official MAC prefix. VMWare apparently has its own MAC address prefixes:

Prefix Vendor
000569 VMWARE, Inc.
000C29 VMware, Inc.
001C14 VMware, Inc
005056 vmware, inc.


Anyway, if you do an ipconfig /all, it will show ALL of your interface MAC addresses, including your virtual interfaces. Look for that MAC address in there.

Also, I just remembered something else. I believe the default network configuration for VMware is NAT. If this is correct, then the VM's MAC will not show up on your router because the NAT virtual machine sets up an internal network (inside your PC), separate from your LAN. Network Address Translation is done inside your PC, and your router never even has a clue of the VM.
My System SpecsSystem Spec
19 Mar 2011   #37
simono1

Windows 7 Pro- 32bit.
 
 

Sorry... I had to leave for awhile. This is what happened, after I went to both drives and fired-up VMware. I now have a new address added to the 3, making it 4 now, and the new address is the external drive with windows 7 on it. The host name (on the Belkin page) is the name I see while in the virtual machine, it's the computer name on the system page. Using the ipconfig /all, I can see my local connection- physical address with Belkin, and can see the same in the Belkin address page, but it's not the mac address. Down a-ways I see vmware network adapter vmnet1: the address after the host name is not the same as the one on the belkin page. the physical address on the ipconfig is different than the mac address on the belkin page. Is this what you mean by it not showing up.....

Any way... this has me thinking that I must of plugged in..... wait a minute.... I lost the virtual external windows 7 download the first time after I had used it on this PC. I think I had just threw a name in there the first time when we downloaded it because me and another were behind on the lab.... that's why I thought that "ours" kinda looked familiar after all these hours. I'll bet that's where that unfamiliar address is from. This is the first time I've plugged in the drive sense downloading the second windows 7.... and there's were 16 different disks going around the class at the time. It's a whole different disk and name... is that why i'm seeing a new address added?

What do you think... I plugged it into the other pc once, to upload some pictures but didn't use 7... that would be the HP pc I'm talking about. I'm still wondering why the address looks to be from HP?
My System SpecsSystem Spec
21 Mar 2011   #38
FliGi7

XP / Win7 x64 Pro
 
 

Quote   Quote: Originally Posted by RayFinkle View Post
Fligi7, that was a pretty good idea to consider the possibility of a VM, but I don't think (I am pretty d*mn sure of this) a VM would use the MAC address of a specific hardware vendor, unless you intentionally set it that way. My VirtualBox VMs use a MAC address that comes back Cadmus Computer systems when I do a MAC address lookup. I googled, and apparently, VirtualBox never registered an official MAC prefix. VMWare apparently has its own MAC address prefixes:

Prefix Vendor
000569 VMWARE, Inc.
000C29 VMware, Inc.
001C14 VMware, Inc
005056 vmware, inc.


Anyway, if you do an ipconfig /all, it will show ALL of your interface MAC addresses, including your virtual interfaces. Look for that MAC address in there.

Also, I just remembered something else. I believe the default network configuration for VMware is NAT. If this is correct, then the VM's MAC will not show up on your router because the NAT virtual machine sets up an internal network (inside your PC), separate from your LAN. Network Address Translation is done inside your PC, and your router never even has a clue of the VM.
This would explain everything. Sounds like we figured out the machine was/is a VM and there's nothing to worry about. If you're running these VM's with NAT, then their host names are gonna show up in your list of DHCP clients while using your local machine's (your HP) MAC.
My System SpecsSystem Spec
21 Mar 2011   #39
simono1

Windows 7 Pro- 32bit.
 
 

Thank you so much for your time. Even if it takes awhile to figure it out.... it's worth it. The knowledge gained is not only a big help to me for future experiences... It also helps the next guy that might run into the same confusing situation.

I love this site.... Take care until next time,

Todd
My System SpecsSystem Spec
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 Belkin router... An unfamiliar address




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