Mac spoofing

My University residential network requires you to 'validate' your computer when using it for the first time. Basically it ties your login details to your computer.

I'm guessing it does this by looking at your MAC address. However, I've just got a new laptop and it won't let me validate this - I'd like to be able to use the network from my room on either my original computer or my desktop, but it seems you can only have one computer validated.

I'm assuming that by spoofing the MAC address of my laptop to that of my desktop I could connect. However, I was told MAC spoofing could be detected (this is a wired network).

Any ideas/suggestions before I'm forced to go and consult the "Student Helpdesk" who know only how to print and use Word :rolleyes:

Quote:

---

I'm assuming that by spoofing the MAC address of my laptop to that of my desktop I could connect. However, I was told MAC spoofing could be detected (this is a wired network).

---

It's not really spoofing more like MAC address cloning. You can 'clone' your desktops MAC address since it's already registered on the network. Your basically doing this so that they can

'Verify that your MAC address is registered with DHCP' is what it sounds like to me. ;)

Theres several tools available that will modify your NIC's mac address.

A few google searches should let you find some.

You'd have to spend some money, but the other option is to get a cheap home router, plug that in to your schools network then change the MAC on that to your desktops MAC address.

I know linksys routers let you do that.

There is a simple way you can change your comps mac on windows. No program needed.

go to start >> connect to >> show all connections or to any thing that allows you to see your network connections.right click on local area connection. Then click on properties. You should be on client for microsoft Networks. Click configure for connect using. Then click on the advanced ta. The click on locally administered address. Put the mac address you want the machine your own to have. In your case this would be the computer that actually has access to the network.

Now, you won't be able to have both comps on the network at the same time but you can connect with that comp now.

If you need the other comps mac address go to start >> run type cmd and then type ipconfig./all

The physical Address is the mac address.

And cheyenne is correct a router will work, only problem with them tends to be that most schools don't want you to have them.

Or you can just do the legitimate thing and have the campus IT department give you access with the new PC. Now there is an idea....

There's always one isn't there.

As I said in my original post, I thought that it was only possible to have one computer validated for my account. Since then, this has been confirmed - validating a new computer unvalidates the old one.

If validating a new computer unvalidates another comp that is part of the network design.

What I told you wouldn't validate another machine it would use the validation that you have on the other machine. Thus allowing you to use your desktop. And no this process won't be noticed by your IT dept. Not that they would even care.

Yes, my reply was to kruptos

Buy a router. I recommend the Linksys WRT54G. (<$60)

Go to the configuration screen... Tell the router to use your PC's MAC address.

Renew DHCP.

Use both computers at once.

Quote:

---

Originally posted here by Synful
Buy a router. I recommend the Linksys WRT54G. (<$60)

Go to the configuration screen... Tell the router to use your PC's MAC address.

Renew DHCP.

Use both computers at once.

---

What a ****ing brilliant idea. +ap.

Quote:

---

by: kruptos
Or you can just do the legitimate thing and have the campus IT department give you access with the new PC. Now there is an idea....

---

You're no fun. -ap.

Quote:

---

Buy a router. I recommend the Linksys WRT54G. (<$60)

Go to the configuration screen... Tell the router to use your PC's MAC address.

Renew DHCP.

Use both computers at once.

---

I agree to purchase a router yes. However, I do not recommend linksys WRT54G This is the same exact model (depending on firmware) I was having problems with it the doctors office. Took it home hooked up in 2 minutes.

Or you could just throw a second nic in the first computer and use it as a gateway to your new one. Set up ICS or DHCP or some other system.

Quote:

---

Or you could just throw a second nic in the first computer and use it as a gateway to your new one. Set up ICS or DHCP or some other system.

---

How do you install 2 nics in a notebook? ;)

Quote:

---

I'm assuming that by spoofing the MAC address of my *laptop* to that of my desktop I could connect.

---

The router is a really good idea. But if you want to try it, you can use SMAC. I've been using it for a few months and it's pretty good.

Enforcer

Quote:

---

How do you install 2 nics in a notebook?

---

Maybe I'm reading it wrong, but didn't djhuk say his desktop MAC is already validated and he's trying to add the laptop?

edit -- he's not real clear on which computer is already validated. If it's his laptop already validated, he could have the net admin pull his laptop validation and have his desktop's MAC validated after he's added a second nic, eh?

Here's a rundown on XP's built in ICS:

http://www.practicallynetworked.com/sharing/xp_ics/