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How to prevent dhcp attacks on network?

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Question added by Jino Rajan , Network Administrator , Midmac Contracting Co.wll
Date Posted: 2016/05/26
Mohammed Taher
by Mohammed Taher , Sr Network Security Engineer , Emirates NBD

DHCP snooping and Arp inspection

we can protect dhcp by activating firewall 

Syed Abdul Muqtader Razvi
by Syed Abdul Muqtader Razvi , IT Infrastructure and Cyber Security Specialist , AL Rowad Educational Group

DHCP snooping will mitigate dhcp attack in a network. Using DHCP feature we create trusted and untrusted ports. DHCP response message is allowed only through trusted ports.Ensure that all end point ports are termed as untrusted.

Shams  Tabrez
by Shams Tabrez , IT Administrator , Zenises Dmcc

The DHCP snooping feature on Cisco and Juniper switches can be used to mitigate a DHCP server spoofing attack. With this mechanism switch ports are configured in two different state, the trusted and untrusted state. If a port is configured to be trusted, it can receive DHCP responses. In other way, if a port is untrusted, it is not allowed to receive DHCP responses, and if a false attackers DHCP response attempts to enter an untrusted port, the port will be disabled.

Muhammad sher afridi
by Muhammad sher afridi , SYSTEM ADMINISTRATOR , ALMSHAEL CO.

WITH DHCP snooping feature

Hamid HASSAINE
by Hamid HASSAINE , network enginer , SLC

The DHCP snooping feature on Cisco and Juniper switches

sandeep Bhat
by sandeep Bhat , IT Executive , Woco Tech

The DHCP snooping feature on Cisco and Juniper switches can be used to prevent  DHCP attack

Elfatih Salih
by Elfatih Salih , Support and development manager , Almadina Newspaper

by globally enabling dhcp snooping in all ports of all the switches. but we can also enable it in some Vlans only.

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