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Sub-Interfaces and Secondary IP addresses

Well, we've used these quite a few times in our topology builds but it is time to provide a little more detail about sub-interfaces and why we use them. In addition, we will look at a close cousin called the secondary IP address. Both provide two or more IP addresses on a single physical interface but unlike the secondary IP address, sub-interfaces use a trunk and VLAN tags. This video also includes a short Packet Tracer demo on the sub-interfaces. For more VLAN content on the channel: VLAN and trunk build series part 1:    • VLANs, trunks, routing, pruning and taggin...   VLAN and trunk build series part 2:    • VLANs, trunks, routing, pruning and taggin...   VLAN and trunk build series part 3:    • VLANs, trunks, routing, pruning and taggin...   For more Packet Tracer or Routing/Switching, take a look at these playlists:    • Packet Tracer      • Routing and Switching   Books and other products for networkers Packet Guide to Core Network Protocols: https://www.oreilly.com/library/view/... Packet Guide to Routing and Switching: https://www.oreilly.com/library/view/... Packet Guide to Voice over IP: https://www.oreilly.com/library/view/... Network Engineering Fundamentals: https://www.oreilly.com/videos/networ... Advanced Network Engineering: https://www.oreilly.com/videos/advanc... Virtualization, Networking, and Storage: https://www.oreilly.com/videos/virtua...