GUIDE 1

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-sh*t.



GUIDE 2

First thing you have to know is that the system I will be describeing is Comcast.net since I only know about that particular one.

Comcast uses the MAC address of the ethernet adapter pluged into the modem to decide what the IP will be(anything other then this will be rejected.)

If somehow you could change this MAC address you would be assigned a new IP(there is no way to control what that IP will be).

The ways that are easy and simple to change your MAC address are as follows.

#1. change your ethernet card (if you dont have a router network setup)

#2. change the MAC spoofing on your router.(Be carefull with this one, MAC addresses are specific like a fingure print, if you were to somehow accidently get someone elses MAC address that is on the same network as you then you would cause an IP conflict and likely be disconnected by your Service Provider untill they could figure out what the hell you did to them). Normally if you have a router hooked up then you likely have 2+ computers hooked up behind the router. You own the MAC address of the router and any ethernet cards in your possesion, and are allowed to spoof these on your router at your will. In theory this would allow you at least 3 different IPs to use for your swapping pleasure.

If you want to know the MAC address of your ethernet card on winNT based OS go into a command prompt.... start->run->cmd->"enter", once inside the command prompt type "ipconfig /all" It will be labed "physical address"

If you want to know the MAC address of your ethernet card on win9x based OS go into start->run->winipcfg->"enter" then select the more info button and you will be able to see your MAC address.



GUIDE 3

Method 1:

This may not work for all network cards but it should for most modern network cards. You dont need special hardware for this.

The DHCP server uses the MAC address on your network card to determine the ip address to allocate to you. Changing your network card's MAC address would allow you to "convince" the DHCP server to assign a new ip address for you.

Right click my computer then choose properties, click hardware tab, choose device manager, right click your network card and select properties, the advanced tab and change your network address. Note that if your MAC address is 00-AA-BB-CC-DD-EE, make sure that you enter 00AABBCCDDEE without the dashes into the Network Address box.

To obtain a valid MAC address, you can just copy from another PC that you are sure is on a different LAN or ISP. To check a computer's MAC address, just type ipconfig /all at the cmd dos prompt and note the "Ethernet Physical Address".

Reboot after changing your PC's MAC address. When you boot up you should have a new ip address.

Method 2:
Change your network card. This would, of course, change your MAC address and thus, "convince" the DHCP server to assign you a new ip address.

Method 3:
Have 2 or more network cards on your PC. Each network card has its own MAC address. You can disable and enable them as you please. Changing your active network card (also MAC address) would "convince" the DHCP server to assign you a new ip address.

To change your IP when you are using a router
====================================================

If you are behind a router with a NAT (Network Address Translator) functionality, you have to change your router's MAC address instead of your PC's.

How do you know if you are behind a NAT? Your PC would have an ip address similar to this 192.168.1.x, which is NOT a true internet ip address. Your NAT router should change its MAC address because it needs to acquire a new internet ip address from your ISP's DHCP server. This internet ip address is what is seen and recognized from the servers that you connect to on the internet.

Here's how you can do it on some LinkSys routers:

Go to http://192.168.1.1, type in your admin password to your router.

Then choose Advanced->Mac Clone and change your router's MAC address. You may also use the MAC address of your PC or any PC within your router for your router's external MAC address. Since none of the PCs are holding on to any true internet ip addresses and have only the fake 192.168.1.x addresses, it should be safe for your router to use their MAC address to obtain an internet ip address from your ISP DHCP.

Go to the "Status" tab, do a "DHCP Release" then a "DHCP Renew" after changing its MAC address.