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31 Days Before Your CCENT Certification by Scott Bennett

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Day 15: DHCP Operation

A client that needs an IP address follows these steps to obtain an IP address on a DHCP network:

Step 1. The client sends a DHCP Discover message with a destination IP address of 255.255.255.255 and a destination MAC address of FF-FF-FF-FF-FF-FF.

Step 2. This DHCP Discover message broadcasts over the network, and the DHCP server replies with a DHCP Offer, including a suggested IP address.

Step 3. The requesting client sends a DHCP Request to use the IP address suggested in the DHCP offer.

Step 4. The DHCP server responds with a DHCP Acknowledgment.

Table 1-15 outlines the configuration commands and parameters necessary to implement and verify DHCP.

Table 1-15. DHCP Configuration and Verification

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