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How To Change Your IP Address How To Change Your IP

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					How To Change Your IP Address



How do I change my IP? There are MANY methods to change your IP. Some methods will work
for you but may not work for someone else and vice versa.

If your IP is static, then you CAN’T change it without contacting your ISP.

If you have a long lease time (explained in this article) on your IP then you won’t be able to
change your IP without cloning your MAC address, which I’ll explain later in this article.

It definitely helps if you know how the IP is being assigned to you.

You can read our DHCP definition to get a better understanding.

What is an IP lease time? IP lease time is the amount of time your ISP determines you’ll be
assigned a particular IP. Some IP lease times are just a few days and other IP lease times could
be set for a year or more. This setting is completely up to your ISP.

One of the easier methods to change your IP is to turn off your modem/router/computer
overnight. Then turn it back on the following morning. This method WILL NOT work if your
ISP has a long lease time set for your IP.

The following method will ONLY work if your computer is being assigned your external IP and
not a router.

How to determine if your computer is being assigned the external IP

If your connection is direct to your computer and your computer gets the public IP and not a
router, you can try this:
For Windows 2000, XP, and 2003
1. Click Start
2. Click Run
3. Type in cmd and hit ok (this opens a Command Prompt)
4. Type ipconfig /release and hit enter
5. Click Start, Control Panel, and open Network Connections
6. Find and Right click on the active Local Area Connection and choose Properties
7. Double-click on the Internet Protocol (TCP/IP)
8. Click on Use the following IP address
9. Enter a false IP like 123.123.123.123
10. Press Tab and the Subnet Mask section will populate with default numbers
11. Hit OK twice
12. Right click the active Local Area Connection again and choose Properties
13. Double-click on the Internet Protocol (TCP/IP)
14. Choose Obtain an IP address automatically
15. Hit OK twice
16. Go to What Is My IP to see if you have a new IP address

For Vista
1. Click Start
2. Click All Programs expand the Accessories menu
3. In the Accessories menu, Right Click Command Prompt and choose Run as administrator
4. Type ipconfig /release and hit enter
5. Click Start, Control Panel, and open Network and Sharing Center. Depending on your view,
you may have to click Network and Internet      before you see the Network and Sharing Center
icon
6. From the Tasks menu on the left, choose Manage Network Connections
7. Find and Right click on the active Local Area Connection and choose Properties (If you’re hit
with a UAC prompt, choose Continue)
8. Double-click on Internet Protocol Version 4 (TCP/IPv4)
9. Click on Use the following IP address
10. Enter a false IP like 123.123.123.123
11. Press Tab and the Subnet Mask section will populate with default numbers
12. Hit OK twice
13. Right click the active Local Area Connection again and choose Properties
14. Double-click on Internet Protocol Version 4 (TCP/IPv4)
15. Choose Obtain an IP address automatically
16. Hit OK twice
17. Go to What Is My IP to see if you have a new IP address

Some people have inquired about manually assigning their IP address. This IS possible, but you
run a very high risk of your ISP banning you from connecting to the internet. To manually
change your IP, follow the steps above for your Operating System. In step 9 or 10, depending on
your O/S, enter an IP similar to the one displayed in the command prompt window. For example,
if the IP displayed in the command prompt window is 75.1.2.3, change yours to 75.1.2.4. You’ll
also need to manually enter the Subnet, Gateway and DNS Server IP addresses as well. If the
new IP you give your computer doesn’t work, chances are someone else on the ISP network has
already been assigned that IP. You’ll need to move on to the next one and keep trying until you
find an open one. However, some ISPs match up your MAC or modem data to the IP that’s been
assigned. If those 2 things don’t match up, you won’t be able to connect no matter what. If your
router gets the IP and not your computer, you’ll need to http in to your routers interface and
manually assign the IP there. It’s pretty much the same method as assigning the IP to your
computer. The method that varies is in how you reach your routers interface. You can get the
instructions from your manufacturer’s website.

MAC Cloning. What is a MAC address? A MAC address is a physical hardware address
assigned to each device that has the capability of connecting to a network. The internet is nothing
more than a large network. The MAC address is something that is assigned in the chip on the
device and is not something the user can change. MAC cloning can only be done at your router
providing it has those capabilities. Most ISPs assign their IPs based on the MAC address in your
equipment. If the MAC address of your router is 00-11-22-33-44-55 and you connect to your
ISP, the DHCP server records your MAC and assigns an IP. If you disconnect from the ISP, you
lose your IP address. The next time you connect, the DHCP server sees your MAC, looks to see
if it has assigned an IP address to you before. If it has and the lease time has not expired, it will
most likely give you the same IP address you had before disconnecting. Why clone a MAC
address? New MAC address most likely equals new IP. How to clone your MAC and if your
router has this feature is dependent on the router itself. You’ll need to find the instructions on the
manufacturer’s website. We offer a Quick Reference List on our Router Support page.

				
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