Informasi dr'Gue

I. About
This tutorial will teach you how to change your ip address to any other one on your ip range instead of having your DHCP Server pick one for you. This is very usefull because you can change your ip when you are getting DDoS'ed or if you wish to piss off someone running a webserver (or other service) on your ip range, it is also usefull to get around a bans as long as the ban only covered your ip not your whole ip range.

As usualy anything illegal you do while reading this tutorial or after reading this tutorial is not my fault, your actions are your own so don't blame me. I do not claim that the things I teach are legal, so concider that everything i mention here is illegal if you are not sure your self.

II. Needed Information
Before you can change your ip you need some information. This information includes your ip range, subnet mask, default gateway, dhcp server, and dns serv.

1. Getting your IP range - Getting information about your ip range is not difficult, I recomend using Neo Trace on your own ip. But for our test just look at your ip address, say it's 24.193.110.13 you can definetly use the ip's found between 24.193.110.1 < [new ip] < 24.193.110.255, dont use x.x.x.1 or x.x.x.255. To find your ip simply open a dos/command prompt window and type ipconfig at the prompt, look for "IP Address. . . . . . . . . . . . : x.x.x.x".

2. Subnet Mask, Default Gateway, DHCP Server - These are very easy to find, just open a dos/command prompt window and type 'ipconfig /all' without the ' '. You should see something like this.


Windows IP Configuration

Host Name . . . . . . . . . . . . : My Computer Name Here
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : xxxx.xx.x
Description . . . . . . . . . . . : NETGEAR FA310TX Fast Ethernet Adapter (NGRPCI)
Physical Address. . . . . . . . . : XX-XX-XX-XX-XX-XX
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 24.xxx.xxx.xx
Subnet Mask . . . . . . . . . . . : 255.255.240.0
Default Gateway . . . . . . . . . : 24.xxx.xxx.x
DHCP Server . . . . . . . . . . . : 24.xx.xxx.xx
DNS Servers . . . . . . . . . . . : 24.xx.xxx.xxx
24.xx.xxx.xx
24.xx.xxx.xxx
Lease Obtained. . . . . . . . . . : Monday, January 20, 2003 4:44:08 PM
Lease Expires . . . . . . . . . . : Tuesday, January 21, 2003 3:43:16 AM

This is all the information you will need for now, I sugest you either keep your dos/command prompt window open or copy & paste the information somewhere, to copy right click the window and select text and click once.


III. Changing your IP Address
To change your ip address first pick any ip you like out of your ip range and remember it or write it down. It is usualy a good idea to make sure the ip is dead (except for what we are going to do later on) so just ping it via "ping x.x.x.x" and if it times out then you can use it. Now go to My Computer, then Control Panel. In Control Panel select Network Connections and pick your active connection, probably Local Area Connection or your ISP name. Open that connection by double clicking on the icon in Network Connections, then select Properties under the General Tab. In the new window that pops up select Internet Protocol (TCP/IP) and click properties, it's under the general tab. In this new window select the General tab and choose "Use the following IP address" and for the IP address enter the ip you would like to use (the one you picked from your subnet earlier) and for the Subnet Mask enter the subnet mask you got when your ran ipconfig /all, same goes for the Default Gateway. Now select "Use the following DNS server addresses" and enter the information you got earlier. Now just click OK. Test that it worked, try to refresh a website and if it works you know everything is okay and you are connected. To make sure the change worked type ipconfig agein and the ip address should have changed to your new one.


IV. DDoS & DoS Protection
If your firewall shows that you are being ddosed, this is usualy when you are constantly getting atempted UDP connections several times a second from either the same ip address or multiple ip addresses (ddos), you can protect your self by changing your ip address via the method i described above


V. Webservers & Other Services
If you know someone on your ip range is running a webserver and he or she has pissed you off or you just like messing around you can "steal" their ip address so any dns going to that ip will show your site instead because you would be running a webserver your self.


To "steal" an ip is to basicaly use the changing ip address method above and picking an ip that someone that is running a webserver has in use. Often you will be able to keep that ip at least for some time, other times you wont be able to use it so just keep trying untill it works. You your self will need to have a web server on the same port with your message. You can do this with other services too. You can also DoS or DDoS the ip address you are trying to steal to kick him off the net, but I dont recomend as its pretty illegal, your isp will get pissed and feds may go ape-shit.

Edit:
How-To: Methods To Changing Your IP Address

Theory:
Your public IP address is connected to the MAC address of your network card in your computer. If you shut off the power to your cable modem for just 30 seconds and then reconnect you will obtain in most cases the same IP address as before. This because it remembers your MAC address in your computer. When you change your MAC address you will obtain a different IP address beacause the DHCP server of the telnet server thinks you connected another computer.

CASE 1: I'm directly connected to my modem

HOW TO:

1.Dowload 'SMAC' from http://www.livedesign.be/smac.rar
2.Install SMAC and open the executable.
3.Select the network card that is connected to your modem.
4.At the center you can change your MAC address.
5.You don't have to change the whole address, just change for example "E4" to "E5" or "D1" to "D2". But remember the original address!
After you've changed it, click *update MAC*
6.Now unplug the power cord from your modem for 30 seconds, after 30 seconds plug it back in. Wait till the modem is started up.
7.Right click on your network card icon and choose the first option to disable the network connection.
8.Right click again on your network card icon and choose the first option to enable the network connection.

If everything went fine you will have a new IP address.

Repeat from step 5 to change your IP address.
After everything is complete you can give your original MAC address back.

CASE 2: I'm behind a broadband router

Method 1 (recommended method):

1.Directly connect your cable modem with the network card of your computer.
2.Now start from step 1 in CASE 1

Method 2:

This will only work if you have a router with a build in switch (LAN ports)
1. Pull out the network cable that is connected to the WAN port in your router.
This cable is comming from your modem.
2. Plug this cable into one of the LAN ports on your router.
The other computer(s) must also be connected to these LAN ports (default!).
3. Now start from step 1 in CASE 1.

To use your router as before you must pull out the power cord to your router for 30-60 seconds and then reconnect it.