Kao što svi znamo, kartica mrežnog sučelja je sklopna ploča koja je instalirana u naš sustav tako da se možemo spojiti na mrežu koja na kraju našem stroju osigurava namjensku mrežnu vezu s punim radnim vremenom. Također je važno znati da je svaka NIC povezana s jedinstvenom MAC ( Media Access Control ) adresom koja također uključuje Wi-Fi kartice i Ethernet kartice. Dakle, MAC adresa je 12-znamenkasti heksadecimalni kod veličine 6 bajtova i koristi se za jedinstvenu identifikaciju hosta na internetu.

MAC adresu u uređaju dodjeljuje proizvođač tog uređaja, ali nije tako teško promijeniti adresu, što je uobičajeno poznato kao lažiranje. U srži mrežne veze, MAC adresa mrežnog sučelja pomaže u međusobnoj komunikaciji gdje se zahtjev klijenta prenosi kroz različite slojeve TCP/IPU pregledniku se web adresa koju tražite (pretpostavimo www.google.co.in) pretvara u IP adresu (8.8.8.8) tog poslužitelja. Ovdje vaš sustav traži vaš usmjerivač^(router) koji ga prenosi na internet. Na razini hardvera, vaša mrežna kartica nastavlja tražiti drugi MACadrese za postrojavanje na istoj mreži. On zna kamo uputiti zahtjev u MAC -u vašeg mrežnog sučelja. Primjer kako MAC adresa izgleda je 2F-6E-4D-3C-5A-1B.

MAC adrese su stvarna fizička adresa koja je tvrdo kodirana u NIC -u koja se nikada ne može promijeniti. Međutim, postoje trikovi i načini za lažiranje MAC adrese u vašem operativnom sustavu na temelju vaše namjene. U ovom članku ćete saznati kako promijeniti MAC adresu na Windows, Linux ili Mac^{(how to change MAC Address on Windows, Linux or Mac)}

Promijenite svoju MAC adresu^{(Your MAC Address)} na Windows , Linux ili Mac

#1 Promijenite MAC adresu u sustavu Windows 10

U sustavu Windows 10^{(Windows 10)} možete promijeniti MAC adresu iz konfiguracijskih okna mrežne kartice u Upravitelju uređaja^{(Device Manager)} , ali neke mrežne kartice možda ne podržavaju ovu značajku.

1. Otvorite upravljačku ploču klikom na " Traka za pretraživanje^{(Search bar)} " pored izbornika Start, a zatim upišite " Upravljačka ploča^{(Control Panel)} ". Kliknite^(Click) na rezultat pretraživanja za otvaranje.

2. Na upravljačkoj ploči^{(Control Panel)} kliknite na " Mreža i internet^{(Network and Internet)} " za otvaranje.

3. Sada kliknite na Centar za mrežu i dijeljenje^{(Network and sharing center)} .

4. Pod Centar za mrežu^(Network) i dijeljenje dvaput kliknite^{(double-click)} Â na vašoj mreži kao što je prikazano u nastavku.

5. Pojavit će se dijaloški okvir Status mreže . ^{( Network Status)}Kliknite^(Click) na gumb Svojstva .^{(Properties )}

6. Otvara se dijaloški okvir mrežnih svojstava. Odaberite^(Select) " Klijent za Microsoftove mreže^{(Client for Microsoft Networks)} ", a zatim kliknite gumb Konfiguriraj^(Configure) .

7. Sada prijeđite na karticu Napredno^{(Advanced tab )} , a zatim kliknite na Mrežnu adresu^{(Network Address)} Â pod Svojstvo.

8. Prema zadanim postavkama, odabran je radio gumb "Not Present". Kliknite radio gumb povezan s " Vrijednost^(Value) " i ručno unesite novu MAC^{(enter the new MAC)} adresu, a zatim kliknite U redu^(OK) .

9. Zatim možete otvoriti naredbeni redak (CMD)^{(command prompt (CMD))} i tamo upisati “ IPCONFIG /ALL †(bez navodnika) i pritisnuti Enter . Sada provjerite svoju novu MAC adresu.

Također pročitajte: ^{(Also Read:)} Kako popraviti sukob IP adresa^{(How to Fix IP Address Conflict)}

#2 Promijenite MAC adresu u Linuxu

Ubuntu podržava Network Manager pomoću kojeg možete jednostavno prevariti MAC adresu pomoću grafičkog korisničkog sučelja. Za promjenu MAC adrese u Linuxu^(Linux) morate slijediti korake u nastavku:

1. Kliknite ikonu Mreža^{(Network icon)} na gornjoj desnoj ploči zaslona, ​​a zatim kliknite na ' Uredi veze^{(Edit Connections)} ' .

2. Sada odaberite mrežnu vezu koju želite izmijeniti, a zatim kliknite gumb Uredi^(Edit) .

3. Zatim se prebacite na karticu Ethernet i ručno upišite novu MAC adresu u polje " ^(MAC)Klonirana MAC^{(Cloned MAC)} adresa" . Nakon unosa nove MAC adrese, spremite promjene.

4. Također možete promijeniti MAC adresu na stari tradicionalni način. To uključuje pokretanje naredbe za promjenu MAC adrese okretanjem mrežnog sučelja prema dolje, a nakon što je proces završen, ponovno vraćanje mrežnog sučelja natrag.

Naredbe su^{(The commands are)}

sudo ifconfig eth0 down
sudo ifconfig eth0 hw ether xx:xx:xx:xx:xx:xx
sudo ifconfig eth0 up

Napomena: ^(Note:) Obavezno^(Make) zamijenite izraz eth0 imenom svog mrežnog sučelja.

5. Kada završite, obavezno ponovno pokrenite mrežno sučelje i tada ste gotovi.

Također, ako želite da gornja MAC adresa uvijek stupa na snagu u vrijeme pokretanja, morat ćete izmijeniti konfiguracijsku datoteku pod   /etc/network/interfaces.d/ ili  /etc/network/interfaces. Ako ne mijenjate datoteke, vaša MAC adresa će se resetirati nakon ponovnog pokretanja ili isključivanja sustava

#3 Promijenite MAC adresu u Mac OS X

Možete vidjeti MAC adrese različitih mrežnih sučelja u odjeljku Preference ^{(Preferences)}sustava^(System) , ali ne možete promijeniti MAC adresu koristeći postavke sustava^(System) i za to ćete morati koristiti Terminal .

1. Prvo^(First) morate saznati svoju postojeću MAC adresu. Za to kliknite na Apple logo, a zatim odaberite “ System Preferencesâ^{(System Preferences)} €.

2. Pod System Preferences,  kliknite na opciju “ Networkâ^(Network) €.

3. Sada kliknite na gumb " Napredno^(Advanced) ".

4. Prijeđite na karticu Hardver^{(Hardware )} ispod prozora Wi-Fi Properties Advance .

5. Sada na kartici hardvera moći ćete vidjeti trenutnu MAC adresu vaše mrežne veze^{(see the current MAC address of your network connection)} . U većini slučajeva nećete moći unositi promjene čak i ako odaberete "Ručno" s padajućeg izbornika Konfiguriraj .^(Configure)

6. Sada, da biste ručno promijenili MAC adresu, otvorite ^(MAC)Terminal pritiskom na Command + Space , a zatim upišite €œTerminal,â€^{( “Terminal,” )} i pritisnite Enter.

7. Upišite sljedeću naredbu u terminal i pritisnite Enter:

ifconfig en0 | grep ether

8. Gornja naredba će dati MAC adresu za sučelje ‘en0’. Odavde možete usporediti MAC adrese s onom iz postavki ^{(Preferences)}sustava^(System) .

Napomena:^(Note:) Ako se ne podudara s vašom Mac adresom^{(Mac Address)} kao što ste vidjeli u Postavkama sustava^{(System Preferences)} , nastavite s istim kodom mijenjajući en0 u en1, en2, en3 i dalje dok se Mac adresa^{(Mac Address)} ne podudara.

9. Također, možete generirati slučajnu MAC adresu, ako vam je potrebna. Za to koristite sljedeći kod u terminalu^(Terminal) :

openssl rand -hex 6 | sed ‘s/\(..\)/\1:/g; s/.$//’

10. Zatim, nakon što ste generirali novu Mac adresu^{(Mac Address)} , promijenite svoju Mac adresu^{(Mac Address)} pomoću sljedeće naredbe:

sudo ifconfig en0 ether xx:xx:xx:xx:xx:xx

Napomena: ^(Note:) Zamijenite XX^{(Replace XX)} :XX:XX:XX:XX:XX s Mac adresom koju ste generirali.

Preporučeno: ^{(Recommended:)} DNS poslužitelj ne odgovara pogreška [RJEŠENO]^{(DNS Server Not Responding Error [SOLVED])}

Nadajmo^(Hopefully) se da ćete pomoću jedne od gore navedenih metoda moći promijeniti svoju MAC adresu na Windows, Linux ili Mac,^{(Change Your MAC Address on Windows, Linux or Mac)} ovisno o vrsti vašeg sustava. Ali ako i dalje imate bilo kakvih problema, slobodno ih pitajte u odjeljku za komentare.

Change Your MAC Address on Windows, Linux or Mac

As we all know a network interfaсe card is a circuit board that is installed in our system so that we can connect to a network that eventually provides our machine a dedicated, fυll-time network connection. It iѕ also important to know that each NIC is associated with a unique MAC (Media Access Control) address which includes Wi-Fi cards and Ethernet cards also. So, a MAC address is a 12-digit hex code having size 6 bytes and is used for uniquely identifying a host on the internet.

The MAC address in a device is assigned by the manufacturer of that device, but it is not that hard to change the address, which is commonly known as spoofing. At the core of network connection, it is the MAC address of the network interface that helps in communicating with each other where the client request is passed down through various TCP/IP protocol layers. On the browser, the web address you are looking for (let suppose www.google.co.in) is converted to an IP address (8.8.8.8) of that server. Here, your system requests your router which transmits it to the internet. At the hardware level, your network card keeps searching for the other MAC addresses for lining up on the same network. It knows where to drive the request in the MAC of your network interface. An example of how the MAC address looks like is 2F-6E-4D-3C-5A-1B.

MAC addresses are an actual physical address that is hard-coded in the NIC that can never be changed. However, there are tricks and ways to spoof the MAC address in your operating system based on your purpose. In this article, you will get to know how to change MAC Address on Windows, Linux or Mac

Change Your MAC Address on Windows, Linux or Mac

#1 Change MAC Address in Windows 10

In Windows 10, you can change the MAC address from the configuration panes of the network card in Device Manager, but some network cards may not support this feature.

1. Open control panel by clicking on “Search bar” next to Start menu then type “Control Panel”. Click on the search result to open.

2. From the Control Panel, click on  “Network and Internet” to open.

3. Now Click on Network and sharing center.

4. Under Network and sharing center double-click on your network as shown below.

5. A Network Status dialogue box will pop-up. Click on the Properties button.

6.  A network properties dialogue box will open. Select “Client for Microsoft Networks” then click on the Configure button.

7. Now switch to the Advanced tab then click on the Network Address under Property.

8. By default, the “Not Present” radio button is selected. Click the radio button associated with “Value” and manually enter the new MAC address then click OK.

9. You can then open the command prompt (CMD) and there, type “IPCONFIG /ALL” (without quote) and hit Enter. Now check your new MAC address.

Also Read: How to Fix IP Address Conflict

#2 Change MAC Address in Linux

Ubuntu supports Network Manager using which you can easily spoof the MAC address with a graphical user interface. To change MAC address in Linux you need to follow the below steps:

1. Click the Network icon on the top right panel of your screen then click on “Edit Connections”.

2. Now select the network connection which you want to alter then click the Edit button.

3. Next, switch to the Ethernet tab, and type a new MAC address manually in the “Cloned MAC address” field. After entering your new MAC address, save your changes.

4. You can also change the MAC address in the old traditional way. This involves running a command for changing the MAC address by turning the network interface down, and after the process is complete,  again bringing the network interface back up.

The commands are

sudo ifconfig eth0 down
sudo ifconfig eth0 hw ether xx:xx:xx:xx:xx:xx
sudo ifconfig eth0 up

Note: Make sure you replace the term eth0 with your network interface name.

5. Once finished, make sure to restart your network interface and then you’re done.

Also, if you want the above MAC address to always take effect at the boot time then you will need to modify the configuration file under   /etc/network/interfaces.d/ or the /etc/network/interfaces. If you don’t modify the files then your MAC address will be reset once you restart or turn off your system

#3 Change MAC Address in Mac OS X

You can view the MAC address of different network interfaces under System Preferences but you can’t change the MAC address using System preference and for that, you will need to use the Terminal.

1. First, you have to find out your existing MAC address. For this, click on the Apple logo then select “System Preferences”.

2. Under System Preferences, click on the “Network” option.

3. Now click on the “Advanced” button.

4. Switch to the Hardware tab under the Wi-Fi Properties Advance window.

5. Now in the hardware tab, you will be able to see the current MAC address of your network connection. In most cases, you won’t be able to make changes even if you select “Manually” from the Configure drop-down.

6. Now, to change the MAC address manually, open Terminal by pressing Command + Space then type  “Terminal,” and hit Enter.

7. Type the following command into the terminal and hit Enter:

ifconfig en0 | grep ether

8. The above command will provide the MAC address for the ‘en0’ interface. From here you can compare the MAC addresses with that of your System Preferences.

Note: If it doesn’t match your Mac Address as you saw in System Preferences then proceed the same code while changing en0 to en1, en2, en3, and further until the Mac Address matches.

9. Also, you can generate a random MAC address, if you need one. For this, use the following code in Terminal:

openssl rand -hex 6 | sed ‘s/\(..\)/\1:/g; s/.$//’

10. Next, once you have generated the new Mac Address, change your Mac Address by using the below command:

sudo ifconfig en0 ether xx:xx:xx:xx:xx:xx

Note: Replace XX:XX:XX:XX:XX:XX with the Mac address you generated.

Recommended: DNS Server Not Responding Error [SOLVED]

Hopefully, using one of the above methods you will be able to Change Your MAC Address on Windows, Linux or Mac depending on your system type. But if you still have any issues then feel free to ask them in the comment section.

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