If the MAC address of your cable connection and wireless network cards

 The answer to the "Media Access Control
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 In recent weeks I have several e-mails over Ethernet card, cable and wireless, and particularly the Media Access Control (MAC) addresses. I think the main reason that I raised many questions about Ethernet cards and the MAC addresses is people trying their networks without thread and their desire, with unemployment MACIRECCIÓN Filtthere. This type of filtering in wireless networks can be configured to allow or use a computer or connect to wireless networks based on MAC address.

 My first thought was, only a portion of the Ethernet and wireless MAC addresses. After more than that, I decided to go and develop more information on these and Kartenwie Ethernet communications.

 Several possibilities punching your MAC address and More
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 There are several ways to make your communications and Ethernet protocol. Many Ethernet card manufacturer's have proprietary software, this information, but that works differently, depending on the supplier. To use Windows 2000 and XP "ipconfig" utility is now verfügbarDie most Windows operating systems.

 First, ga to Startr -> Run and type "cmd" ohsans quote. Then press Enter. On the command line, type "ipconfig / all" again sinr quotes. Indeed, not only entering the command ipconfig / all work, but give you information about your NIC abbreviated. An example of what you can by clicking on the "ipconfig / all" under cadzur outlets with comments in green:

 High availability and fault systems getolereerdnce
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 There are several ways to make your communications and Ethernet protocol. Many Ethernet card manufacturer has proprietary software, this information, but that works differently, depending on the supplier. To use Windows 2000 and XP "ipconfig" a tool is now available in most Windows operating systems.

 First, go to Start -> Run and type "cmd" sans quotes. Press the Enter key. On the command line, type "ipconfig / all" without quotes. After all, not just enter the command ipconfig / all, works only with leabreviado information on network cardsat. An example of what you can by clicking on the "ipconfig / all" in the command:

 Time performance 'ipconfig / all "command
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 Windows IP Configuration


 Host Name. . . . . . . . . . . . : Home Computer
 This is the name of the computer, ordich when installing Windows. It can be adjusted after installation.

 Primary DNS Suffix. . . . . . . : Domain.com
 If the team participates in a networkrk, as a Microsoft Windows on this subject, you can rename rule.

 Node. . . . . . . . . . . . : Unknown
 The button can say, is not known whether peer-to-peer, or dance some cases "hybrid". It is an adjustment to make, Windows Internet Name Service for certain types of Windows domain networks.

 IP routing enabled. . . . . . . . : No
 This setting determines whether Windows XP or 2000, is regarded as an IP router. If you have two or more networkand your system, such as a router, an application for sending messages from one network to another. Windows 2000 can be configured to do so in a relative simple, Windows XP, an amendment of records.

 WINS Proxy Enabled. . . .. . . . : No
 WINS proxy is another parameter, which focus on the "knot" we discussed earlier. In general, no adjustment is necessary, a home or small office network or new types  Microsoft Windows.

 Ethernet adapter Wireless Network Connection 2:
 If you have multiple Ethernet (network) cards in their systems, as I in this gold portable computer, you have more messages. This done, the second Ethernet card, a wireless Ethernet card internal

 Description. . . . . . . . . . . : Broadcom 802.11b / g WLAN
 This is the description of the Ethernet card, usually the name / manufacturer and type of Ethernet card. In this case, an Ethernet card in myBroadcom Wireless regazosuperior.

 Physical address. . . . . . . . . : 00-90-4B-F1-6E-4A
 And here we have the MAC address. L'eenMAC is a 48-bit hexadecimal code and quite a unique address. It is 48 bits, nousil each number or letter in hexadecimal represents 8 bits. Hexadecimal numbers 0,1,2,3,4,5,6,7,8,9, A, B, C, D, E and F. There are 6-alpha-numeric codes, 6 * 8 = 48 (bits). The first 3 of the Code of dialogues, the producers of the map and other codes  to a unique number. In theory should not even have a card with same MAC address on one or late to water. There are some exceptions. There are tools that allow cesCode change. Indeed, it is a step some hackers attack other machines on a LAN. I say this because the LAN MAC addresses are not router between network segments. The address of the phishing attack, the identity of another machine on the network. Transport, the objective backgift of the redirect, so that hackers machine. This is the address, also be used for a physical address or MAC address table when configuring your wireless access point for MAC address filtering.

 DHCP enabled. . . . . . . . . . . : Yes
 DHCP or Dynamic Host Control Protocol, wennaktiviert means your computer's IP address from a DHCP server on your network. The DHCP server, you can access wireless Cable / DSL, cable modem or a server on your network. In addition Siuga DHCP server is not enabled on your network, information exploitationm automatically an IP address in a randomly selected field. This means that the network can be a series of systems and without alsunwissend IP manually.

 IP address. . . . . . . . . . . . : 192.168.0.117
 This setting allows your current IP address. The above address is what is a "private" address. There are certain types of IP addresses were used for ASIDelectrónico private. This means, For her, premises or private network at home or office. These addresses are not, or router to the Internet. Internet lines called "valid" IP addresses. Cable / DSL or cable modem has an IP address assigned to the external network interface. The external interface, you can phone or cable TV cable.

 Subnet Mask. . . . . . . . . . . : 255.255.255.0
 The subnet mask is a number, or gewissem sense Dees filters interrupts the IP address, in which case the private IP ad -procedures in certain groups. IP addresses and subnet masks, a complicado and an article, ga go.

 Default Gateway. . . . . . . . . : 192.168.0.254
 The default gateway IP address is specified, the IP address of the device to your request as an attempt by a website via the Internet. It is a bit more complicated than that, but as gateways ofRodada router may be different from the transport network, including other private networks. In your home or small Büron that is meis likely that the cable / DSL modem or router.

 DHCP server. . . . . . . . . . . : 192.168.0.49
 The DHCP server, I remember we talked a bit about these precedents, the device is that the computer has an IP address and other information. DHCP server, all kinds of information, for example, default gateway, Domain Name Server (DNS), IP address, subnet mask, server time and mrans.

 DNS server. . . . . . . . . . . : 192.168.0.49, 64.105.197.58
 DNS server is hand internal or external server, the solution for the fully qualified domain name (FQDN) of www.defendingthenet.com IP addresses. This happens because the computer, they do not, your request with the domain name, IP address, FQDN. For most home and a small Office users, the primary DNS server for the IP address of your connection Clages / DSL Router. The Cable / DSL Router preguntasun external DNS servers on the Internet to resolve the IP address of FQDN. 192.168.0.49 Is a private address on my network device that 64.105.197.58 is an external Internet DNS server and my router has problems with DNS resolution.

 Retrieved leasing. . . . . . . . . . Sunday, March 19, 2006 6:38:16 PM
 This Informationenón you know if your computer's IP address and other information from a server DHCPservidor. You see the message "Lease obtained", that is because most of the servers that the DHCP IP address lease to a group of addresses to youw decision. For example, the pool may be 192.168.1.1 to 192.168.1.50. So, the DHCP server has 50 IP addresses in the selection for the award of the IP address of your computer.

 Expiry of the lease. . . . . . .. . . : Wednesday, March 29, 2006 9:38:16 PM
 If the IP address of the DHCP lease is to try it, lease or otraexiste the same IP address. This can be a general rule, in the DHCP server. For example, some fully functional DHCP server, you can change the lease that never expires, or after the expiry of a period of 1 day and so on.

 Why the MAC addresses are also important, and so that the function
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 Go back to the MAC address a little bit. They believe that the IP addresses are most important when it comes to network communication. The reality is, addresses MACson very important, because without a computer, it would not be able to communicate on Ethernet networkrken. If a team wants another computer in a local network, a request to issue, or pregnancy, Grease, an IP address. For example, the computerator can say, "Who is 192.168.0.254. With the help of Obese above, my default gateway is 192.168.0.254 and answers" I "00-90-4B-F1-6E-4A" 192.168.0.254 ". It provides its MAC address. addrearts MAC, what happens in a kind of ARP (Address Resolution Protocol) on your computer. You can access this information, see opdrachtregel above and you enter "arp-a". If you have information, including:


 Adrese internet Physical Address Type
 192.168.0.49 00-12-17-5C-A2-27 dynamiqueisch
 192.168.0.109 00-12-17-5C-A2-27 in a dynamic way
 192.168.0.112 00-0C-76-93-94-B2 dynamic
 192.168.0.254 00-0E-2E-2E-15-61 dynamic

 If an intruder, the MAC addresses in an attack
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 You can see IP addresses and to the right of the MAC address. Shamer this information, ohneMAC address, it would not be reading this article now. The MAC does not advertentieresses router, such as IP addresses. Work locally or priv ate network. However, the tools of the Internet on the same functions. Routers and switches, a list of pairs of devices, such as the MAC address of your computer and devices to your home or office network. I mentioned above, the MAC addresses can be changed to redirect. Achsemplo if I have a network of handsensors and has an internal web server, cs enter personal data, I could tell her team for all my laptop on the site of my MAC address as part of the dissemination of real web server IP address. I want the team to the question "Who is the" Real Web Server ". Fake, a Web server, similar to the original, and the collection of Information Tion that the real web server for the collection of the rule. You can see how this can be dangerous.

 Conclusion
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 The There are simple ways to get your MAC address, but can a bit confused, if more than one internal network card. Most external USB or PCMCIA wired Ethernet and wireless cards have their MAC address. If the cable or wireless network card in your computer, portable zBArbeitgeber, sometimensaje MAC address at the bottom of the laptop. In addition, the Bureau of the systems in the PCI cards on the MAC address of the Ethernet card.

 VU may reproducePublish this Article or free, as the author of the line.

 Original URL (the web version of the article)
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 http://www.defendingthenet.com/NewsLetters/FindingYourMACAddressOnWiredAndWirelessNetworkCards.htm

 About the author
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 Darren Miller is an advisor to the security of information technology more than seventeen years experience. He has many articles on technology and security, which some national DEJA publishedpublished in newspapers and magazines. If you wish, you can contact Darren E-Mail-him@Darren.Miller defendingthenet.com. To learn more about computer security, visit https: / / www.defendingthenet.com.