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10.4: One way to get two MAC addresses for Parallels Apps
My employer only will assign one IP per MAC address. This has prevented me from using Parallels/XP while at work. At home, everything works fine. There are solutions from people in the Parallels forums for setting up NAT, etc., but I wanted something easier (for me). I got a cheap wireless USB adapter (Netgear WG111 - $15 on Woot!). Now, my Mac connects wirelessly when at work, and when I plug in the USB adapter, the XP side does the same thing -- using a different MAC address.

I also was able to connect at work using wired for one connection and wireless for the other, but this allows two simultaneous wireless connections with no changes in my network configuration. When I'm done, I just pull out the adapter...quick and relatively painless.
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10.4: One way to get two MAC addresses for Parallels | 9 comments | Create New Account
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10.4: One way to get two MAC addresses for Parallels
Authored by: bex on Aug 31, '06 08:17:49AM

Everyone should be careful before following this hint. Many employers prohibit wireless routers being added without permission (secured or not) and it is often a terminating offense.



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10.4: One way to get two MAC addresses for Parallels
Authored by: kyngchaos on Aug 31, '06 08:34:38AM

er, this is talking about a wireless adaptor, not a router.



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10.4: One way to get two MAC addresses for Parallels
Authored by: audioaquatic on Sep 01, '06 08:58:39AM

bex's scientific precis appears to have come directly out his ass, sans router



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10.4: One way to get two MAC addresses for Parallels
Authored by: monickels on Aug 31, '06 08:29:18AM

But Parallels has its own MAC address, too, albeit faked. In the container preferences window, click on the Edit button and then choose "Network Adapter." Click on the Advanced tab. You'll see the Type of adapter and the MAC address.

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two wireless cards simultaneously may be physically risky
Authored by: j-beda on Aug 31, '06 09:05:38AM

I seem to recall warnings about using two wireless cards in close proximity - they may get damaged by the strong signal of the close transmitter. Then again, what do I know?



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10.4: One way to get two MAC addresses for Parallels
Authored by: mike3k on Aug 31, '06 10:30:58AM

A much better way is to use Parallels Host-only networking. Go to the Sharing panel, switch to Internet Sharing and share your connection from built-in Ethernet or Airport to Ethernet Adapter en2.



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10.4: One way to get two MAC addresses for Parallels
Authored by: ocpete on Sep 01, '06 04:13:20AM

I have a situation at my job where that won't work for me. In order for me to be able to login to our Novell network and admin our DHCP servers (still netware), I've got to have a real IP and not a 10. that ICS gives you.
Sometimes ICS won't do. As for the original tip, either way the netadmin is giving out 2 ips, whether it comes from the same nic or not is ridiculous.
P



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10.4: One way to get two MAC addresses for Parallels
Authored by: dayhox on Aug 31, '06 12:57:04PM

Dude, If your IT guy didn't give it to you, it has no excuse to be used on an at work network (router, adapter, etc.). I spend half my week telling people not to bring in that CR@p they bought at Best Buy to work.
d



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10.4: One way to get two MAC addresses for Parallels
Authored by: robdew on Sep 01, '06 07:37:25AM
Yet another mac post about how to get around your IT staff's rules and guidelines. This isn't doing the Mac community any good.

Fortunately this is a pretty stupid rule or policy.

It would have been very helpful know why you needed two IP addresses, because there might have been another solution, such as one in software on OS X or XP.

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