11/13/2022 0 Comments Mac address ubuntu 18.04![]() ![]() Step 2: stop network driver sudo /etc/init.d/networking stop )įor example, I choose my new MAC address as b4:d5:bd:93:3d:99. Otherwise, the wifi router could not recognize your device and use the wrong protocol at a low-level network layer (physical layer, network layer. You should change the latter 24-bit, and should not change the first 24-bit OUI. MAC address is 48 bits (6 bytes) long, which includes 24-bit OUI (Organizational Unique Identifier) and 24-bit vendor-assigned address. The interface name here is wlp4s0, current MAC address is b4:d5:bd:93:3c:99.įrom this MAC address, you can choose any new MAC address you want. TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ![]() ![]() My current ubuntu version via lsb_release -a is as follows No LSB modules are available.Ĭodename: bionic Step 1: check interface name and current MAC address sudo ifconfig As a result, if you want to do the change in smartphone devices, technically, it requires your smartphone to be rooted. Usually, default network driver is provided by operating system.Ĭhanging MAC address requires sudo (root) privilege. Network driver is a "soft"ware, programmed, thus it can be changed, configured via software. For example, to provide device information (MAC address) to wifi router, encode/decode data to physical layer signal data. This wifi card requires a driver (so called network driver) to be used. On each device that supports a wifi connection, there is a wifi card. Non-free wifi is usually cheap and it is not worth to pay too much effort to avoid such a small amount of payment. And I do not recommend using this way to avoid a have-to-pay bill. I write this post for technical purposes. ![]() Cookie can be used, however, cookie is too easily to be manipulated by end-user. Thus, if the MAC address is changed, technically, the wifi router has no idea on the tracking device. Technically, the only way a wifi router can track a device and check if the device has finished the free session or not is by MAC address. To continue the access, an extra payment is requested. There, wifi is free only in the first session. It happens to me when I traveled to other countries, stayed in an environment which limits wifi connection. After the connection expires, you have to connect to the wifi again and obtain a new access session. Usually, the wifi connection here is limited to a specific time range (e.g. airport, convenience store, train stations. ![]()
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