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Learn Cisco Network Administration in a Month of Lunches by Ben Piper

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Chapter 8. IP address assignment by using Dynamic Host Configuration Protocol

In the last chapter, you got your two virtual LANs (VLANs) talking to each other by coming up with two IP subnets and configuring two switched virtual interfaces (SVIs), one for each VLAN. Configuring an SVI for a VLAN is something you typically have to do only once per VLAN because each subnet needs only one default gateway to reach other subnets.

But when it comes to devices within a VLAN—computers, printers, security systems, and so on—manually assigning IP addresses one by one as you did in the last chapter is too tedious and prone to error. You need a way to automatically assign IP addresses from a subnet to devices in any given VLAN.

Dynamic Host Configuration ...

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