Airport WiFi and other public networks operate on the “Limited Time Access” rule when it comes to gifting free internet to their clients.A firewall or router has been used to block your original MAC address to deny you access to a specific network.You do not trust the public network you are using and therefore don’t want your MAC address to be exposed as it can be used to permanently identify your machine whenever you are on a network.Three prime reasons as to why you might need to temporarily change your MAC address stand out: If you restart your machine it will default to its original manufacturer’s value. Therefore, an IP address can be permanently changed whereas changing a MAC address is only temporary. The MAC address is different from an IP address such that it is hardware-oriented whereas an IP address is software-oriented. In this case, the MAC address acts as a reference manual for networking devices like the router so that these devices know the identity of the other network devices they are communicating with or, in this case, assigning IP addresses. MAC serves a unique role in identifying these network interfaces through system protocols and programs.įor example, through DHCP ( Dynamic Host Control Protocol), a network interface is assigned an IP address by a network router automatically. The wireless and Ethernet network modules are examples of commonly used network interfaces on a Linux operating system. Check if Macchanger is actually working on your systemīefore creating a systemd unit to automatically change the MAC address on every reboot, check if Macchanger can actually change your MAC address (I have seen cases where it does not work for some reason).Every network interface on your Linux operating system distribution is associated with a unique number called MAC ( Media Access Control). Make a note of the network interface 3 whose MAC address is to be spoofed. for the wired interface, and wlan0, 1st class wireless). Here, the wired network interface is enp10s0 The wireless network interface is wlp3s0 (Previously, eth0, 1 etc. Link/ether 1d:21:da:ab:1d:71 brd ff:ff:ff:ff:ff:ffģ: wlp3s0: mtu 1500 qdisc mq state UP mode DORMANT group default qlen 1000 TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0Įther 1e:14:57:1c:66:11 txqueuelen 1000 (Ethernet)ġ: lo: mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 Your network interface should now display as follows:
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