. .168. They work on your local or private network. : No WINS Proxy is another setting that is related to the "Node Type" we discussed earlier. . This means for your internal, local, or private network at home or office. . There are software tools that allow you to change this code. . . . . It sends back its MAC address.168. The reality is, MAC addresses are very important because without them computers would not be able to communicate over Ethernet networks. . . Traffic that was bound for the intended target can be redirected to the hacker's machine. .0. However, devices on the Internet perform the same tasks. .

This one happens to be the second Ethernet card, an internal wireless Ethernet card. : domain.255. . . . .168. In cases where the wired or wireless network card are inside your computer, such as in laptops, the MAC address is sometimes printed on the bottom of the laptop. . : Home Computer This is the name of your computer, typically defined during the windows installation. The DHCP server could be your wireless access point, cable/dsl router, cable modem, or a server on your network. . . After thinking about it I decided to expand on this and go over some specific information about Ethernet cards and communication. . . MAC addresses are not routable like IP addresses.

An example of what you might see by typing the "ipconfig /all" command is below: OutPut Of The "Ipconfig /All" Command - Windows IP Configuration Host Name . . Your cable/dsl router or cable modem has a valid IP address assigned to its "external" network interface. . DNS Servers . This is done because computers don't actually transmit your requests using the domain name, they use the IP address assigned to the FQDN.168.0. .0. Actually, just typing ipconfig without the /all will work but will only provide you with abbreviated information regarding your network cards. Using the information above, my default gateway is 192. . First, go to "start" -> "run" and type "cmd" without the quotes.

The external interface may be your phone line or cable TV cable. . By spoofing this address, you can impersonate another machine on the local network. . I mentioned above that MAC addresses can be changed in order to redirect requests. . . . .168. .49 is an internal private device on my network whereas the 64. . . Hexadecimal numbers range from 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E, F. So we will use the Windows 2000 and XP "ipconfig" utility since this is available in the majority of Windows Operating Systems. . . . . Then hit the enter key. . . Many Ethernet card manufacturer's have proprietary software that can reveal this information but they work differently depending on the manufacturer. : Wednesday, March binding wire 29, 2006 9:38:16 PM When the IP address, assigned by the DHCP server, lease expires it will attempt to lease you the same or another IP address. :