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If FreedomBox becomes a widely used andĮffective system, certain authorities might develop a strong interest in
#MAC ADDRESS VENDOR CODES LIST MAC#
Of the location from which specific network activity has been generated.įinally, there is the matter of that manufacturer identification numberįound in every MAC address. John also pointed out that it is often trivial to determine which IPĪddress is assigned to a device it is often just a matter of sending a DNS Information is maintained by other parties - Google, for example. In place and can simply say where that device is to be found. Just a matter of asking Apple, which has a widespread surveillance network In other words, a hostile entity might not have to drive around a city inĪn attempt to detect a device with a specific MAC address instead, it is It's easy for hackers to query thatĭatabase of MAC addresses and locations, by pretending to be an Phones often report their GPS position and any nearby MAC addressesīack to Apple servers. This is used to more rapidly cause the GPS algorithm toĬonverge on a position, and also used when GPS isn't working. These to Apple, and Apple uses them to return a physical positionįix. Quoting John:Īpple iPhones record the MAC addresses that are nearby, report Over time and the monitoring of specific devices.Ĭurrent technologies make things worse. That allows the correlation of activities So, while aįreedomBox device might move around, a suitably informed observer willĪlways know which device it is.
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Most interfaces never operate withĪnything but the vendor-supplied address if a hostile party learns thatĪddress, they can quickly identify the system it belongs to. One obvious problem is that a static MAC address is a unique number Is well worth reading in its entirety it forms the basis of this summary. Many of those were outlined in this lengthy message from John Gilmore, which The hardware will come with an address provided by the manufacturer, ofĬourse, but that address can be changed by the kernel and there may well be Pondering the question of how a FreedomBox should set its MAC address. The contrary), no other Ethernet interface on the planet should have thatįreedomBox developer Nick Daly recently started If Dell has done its job properly (and there is no evidence to This MAC address identifies the relevant system as having been manufacturedīy Dell. The MAC address for the Ethernet interface on the system where this article
#MAC ADDRESS VENDOR CODES LIST SERIAL#
Manufacturer while the other half are meant to be a unique serial number. Ethernet-style MACĪddresses are six-byte quantities half of those bytes identify the Interface - shows how tricky this problem space can be.Īn interface's MAC address is a unique number identifying the interface toĪny other devices it may communicate directly with. Overcome, one of which - the choice of MAC address for the network The resulting configuration should "just work" for nontechnical users in The initial plan is toĬreate a version of the Debian distribution that can be installed on a Is working toward the creation of an inexpensive, in-home device that canīe used for secure and private communications.