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Hyper-V: Protection against malicious DHCP with DHCP Guard

enable_dhcp_guard

Note: this option is available on Windows Server 2012

The service DHCP is ever present in networks of companies to distribute a network configuration to clients’ computers and even servers. Generally, multiple servers are present in order to make sure the availability and stability of the service. These servers manage a lot of things along with synchronization and avoid duplication.

Now just imagine that unknown DHCP server just connects to your network for malicious activity, without knowing its presence you may distribute the bad IP configuration and that will greatly disrupts your network. Especially, the operation of the DHCP protocol, a client negotiates with the first DHCP server that therefore address him simply responds as malicious DHCP server before yours and before you know it. read more

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