Changing a Cable Modems IP :)

[Thyspy]

Alright in this topic I am going to show you how to change your IP address for a DHCP IP(Cable modem IP).

Alright at first I was told that this is a simple process; and its actually very true. But the way that I was told to do it was not :(. "Unplug your modem for 15 mins and it will reset". Nope didnt reset for me. I waited for like a day still nothing. So then I got angry and figure it out.

Alright this is how it is done.

If you go to Start-Run-CMD for the command in Run. This will bring up a MsDos.
Then in MSDOS type ipconfig/all. This will bring up info about your connection. What we are worrying about is basically the Physical Address this is known as your MAC address. Now I use Comcast and what they do is something called a "Lease" IP meaning my IP never changes unless something stupid happens. That "Stupid Happening" Is what I call "Changing MAC Address".

Once you have your Physical Address(MAC Address) Copied or Written down(Just in case anything happens) exit out of MSDos and then go to.
Start-ControlPanel-Switch to classical view on the left-InternetOptions.

Now you should see all the connections you use for the internet. Right click on the one you use for internet. Go to properties then click on Configuration. After that go the Advanced Tab. Now you should see something called; Network Address. This is where the MAC Address is aqquired from. Click on it and then go to value.

Remember the MAC address you wrote down? Yea say my mac address is.
0013A2EAB67C(No -'s). What you want to do now is paste it here in the Value box and change 1 letter and or number. 0012A2EAB67C. In this case I changed only 1 number. The 13 to a 12. once that is done click ok. Your internet will go down. Now this is the "Unplug your modem" Part. Once your connection says "This internet access has little or no access" Is when you want to unplug for 15 secs and then plug in. Once that happens your IP should be changed! And if it doesnt go back there and put you value to the original MAC Address you had in MSDOS.

Good luck and thats it.

[Kenji]

hmmm, maybe I'll try it :-)

This has been explained tons of time to me, but I never really did it -_-

[jaketo]

Good effort Thyspy, and whilst not wishing to sound contradictary or dismissive, here's some reasons why this won't work or is a bad idea -

1. A MAC address is not a variable, each IP enabled device globally has a unique one (in theory it's possible that there's some duplication but this is unlikely given the methodology used for allocating MAC address ranges to NIC manufacturers) and this uniqueness is very important as it controls the physical layer of networking. For this reason, trying to change it is not a good thing.

2. Using the method described above is only telling Windows to spoof the MAC address, it is not actually changing it. Having two MAC addresses on the same system node is not a good thing also.

3. Leasing IP addresses how most ISPs function, using DHCP (I've already discussed this in huge detail, go read all about it here (http://www.phoenixrising.at/forums/showthread.php?t=13736) (I'll tidy that thread out at some point!)). In very simple terms, the ISP assign you an IP address temporarily and bind it to your MAC address. Spoofing a new MAC address would potentially force the ISP to assign you a new IP address but only because the ISP considered you as a new connection. Technically this would work, but some ISPs have measures in place to ensure only legitimate users are assigned IP addresses, this is predominantly to stop users attaching more than one system to a broadband connection for example (NTL in the UK do this for example). So what might happen is that you spoof your MAC address and then get refused a new IP address. In all reality the IP lease to your old MAC address would still be in place so you could just restore your original MAC address and everything would be fine, albeit with the same IP address, but I wouldn't guarantee it. You may end up with no connection.

4. Unless you are confident with what you're doing (or have a very generous friend who is), fiddling with stuff like this is a really good way to bugger up your computer.

5. Why would anyone actually want to do this? The only KoC-related reason is so someone could click through the list on CW more than once per day, and just in case you weren't aware or had forgotten, using multiple IP addresses to boost numbers of clicks is illegal -

Prohibited - 'Using any process which enables clicking of a unique link more than once per day by the same person' (http://www.kingsofchaos.com/help.php#)

Caveat clickor!

Cheers

Jake

[Kalki]

Moved into technical discussion.

[jaketo]

And closed.