DHCP Attacks and Defense Strategies 

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In this video, you'll see how an attacker might launch a DHCP attack against your network, and you'll learn how to defend yourself. For example, an attacker might flood your DHCP server with thousands of DHCP Discover messages, which can very quickly deplete your DHCP server's pool of IP addresses.
You'll see how an attacker might launch such an attack using a utility called Yersinia, and then you'll see how to configure Port Security to prevent such an attack.
However, that still doesn't prevent an attacker from adding a rogue DHCP server to the network and possibly handing out incorrect IP address information to clients. So, we'll then dive into the configuration of DHCP Snooping, which can block DHCP Offer messages from any untrusted DHCP server.
These topics are covered both on the Certified Ethical Hacker (CEHv11) exam blueprint, and they're also helpful in your Cisco CCNA and CCNP Enterprise studies.
Enjoy the training!
NOTE: This channel does not endorse or encourage malicious or illegal activity using hacking tools.
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Kevin Wallace, CCIEx2 #7945 Emeritus (Collaboration and R&S)
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DHCP Attacks and Defense Strategies
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