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[>_] ROOM · Networking
DHCP Administration and Security
Master the DHCP DORA process, scope configuration, and learn to defend against rogue DHCP servers and starvation attacks.
Room tasks
1What Is DHCP and Why Does It Matter
2DHCP Lease Process (DORA)
3Configuring DHCP Scopes & Reservations
4DHCP Relay Across Subnets
5Guided Lab: Configuring DHCP with Relay for a Multi-VLAN Network
Frequently Asked Questions
What is the DHCP DORA process?
DORA stands for Discover, Offer, Request and Acknowledge, the four messages a client and server exchange so the client receives an IP address and settings.
What is a rogue DHCP server?
A rogue DHCP server hands out malicious settings, such as a fake gateway or DNS, enabling traffic interception. DHCP snooping on switches blocks untrusted servers.
How does a DHCP starvation attack work?
The attacker requests all available addresses with spoofed MAC addresses, leaving none for real clients. Port security and rate limits help prevent it, as this free Codelivly room explains.