VLANs started
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<p class="fragment fade-in-then-out">ipv6?</p>
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<p class="fragment fade-in-then-out">tcp?</p>
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<p class="fragment">Allows connections between computers</p>
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<aside class="notes">
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<p>We are going to mostly focus on Ethernet and IPv6</p>
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</section>
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<section><h2>Managed network?</h2>
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<p class="fragment"><img src="3tier.png" /><p>
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<aside class="notes">
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<p>Most of us probably work in a managed network</p>
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<p>Most of us probably have a pretty flat edge network at home</p>
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<p>Diagram is nice, but hides complexities at each layer.<p>
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</aside>
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</section>
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<p class="fragment">For the purposes of this talk, we can ignore a lot of complexity</p>
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</section>
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<section><h2>An easy one</h2>
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<p>VLANS</p>
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<p class="fragment">Ethernet layer</p>
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<p class="fragment">Designed to limit broadcast storms</p>
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<p class="fragment">Can also separate IP networks on the same Ethernet</p>
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<p class="fragment">Tagged and Untagged or Default</p>
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<aside class="notes">
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<p>beware of
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</section>
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<section><h2>VLANs in linux</h2>
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<p>Are pretty easy!</p>
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<pre class="fragment">code data-trim data-noescape>
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ip link add link enp0s2 name enp0s2.2501 vlan id 2501
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ip -6 addr add 2001:db8:2501::10/64 dev enp0s2.2501
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ip link set dev enp0s2.2501 up
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</pre>
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<section><h2>What even is a router?</h2>
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<p class="fragment">Two or more interfaces</p>
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<p class="fragment">Some logic to determine where a packet goes</p>
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