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<!--replace-end-7--><!--replace-end-4--><!--replace-end-1--></head><body><div class="ui fluid container universe"><!--replace-start-2--><!--replace-start-3--><!--replace-start-6--><div class="ui text container" id="zettel-container" style="position: relative"><div class="zettel-view"><article class="ui raised attached segment zettel-content"><div class="pandoc"><h1 id="title-h1">MAC addresses</h1><p>A Media Access Control (MAC) address is a physical address in contrast to, say, an IP address which is logical.</p><p>Each device on a <a href="./Link_Layer_of_Internet_Protocol.md">local network</a> has a MAC as a unique identifier. It is a hardware-based, physical attribute of the device, typically permanently encoded onto a non-volatile memory chip attached to the <img alt="network_card" src="/static/Network_card.md" />.</p><p>MAC addresses consist of 6 bytes (48-bits) represented as 12 <span class="zettel-link-container cf"><span class="zettel-link" title="Zettel: Hexadecimal number system"><a href="Hexadecimal_number_system.html">hexadecimal_digits</a></span></span>.</p></div></article><nav class="ui attached segment deemphasized backlinksPane" id="neuron-backlinks-pane"><h3 class="ui header">Backlinks</h3><ul class="backlinks"><li><span class="zettel-link-container cf"><span class="zettel-link"><a href="Link_Layer_of_Internet_Protocol.html">Link Layer of the Internet Protocol Suite</a></span></span><ul class="context-list" style="zoom: 85%;"><li class="item"><div class="pandoc"><p>Each device on a link has a network address that uniquely identifies it. For most Link Layer Protocols this is a <span class="zettel-link-container cf"><span class="zettel-link" title="Zettel: MAC addresses"><a href="MAC_addresses.html">Media Access Control (MAC) address</a></span></span>.</p></div></li></ul></li><li><span class="zettel-link-container cf"><span class="zettel-link"><a href="Example_scenario_internet_data_transfer.html">Example scenario of data transfer accross the internet</a></span></span><ul class="context-list" style="zoom: 85%;"><li class="item"><div class="pandoc">At the <span class="zettel-link-container cf"><span class="zettel-link" title="Zettel: Link Layer of the Internet Protocol Suite"><a href="Link_Layer_of_Internet_Protocol.html">Link Layer</a></span></span> of the client device, the IP packet is encapsulated in a frame with the <span class="zettel-link-container cf"><span class="zettel-link" title="Zettel: MAC addresses"><a href="MAC_addresses.html">MAC_address</a></span></span> of the local router in its header. The frame is wirelessly transmitted by the client device’s WiFi hardware.</div></li></ul></li></ul></nav><nav class="ui attached segment deemphasized bottomPane" id="neuron-tags-pane"><div><span class="ui basic label zettel-tag" title="Tag">networks</span></div></nav><nav class="ui bottom attached icon compact inverted menu blue" id="neuron-nav-bar"><!--replace-start-9--><!--replace-end-9--><a class="right item" href="impulse.html" title="Open Impulse"><i class="wave square icon"></i></a></nav></div></div><!--replace-end-6--><!--replace-end-3--><!--replace-end-2--><div class="ui center aligned container footer-version"><div class="ui tiny image"><a href="https://neuron.zettel.page"><img alt="logo" src="https://raw.githubusercontent.com/srid/neuron/master/assets/neuron.svg" title="Generated by Neuron 1.9.35.3" /></a></div></div></div></body></html> |