DHCP Snooping Insights

What is DHCP Snooping?

DHCP snooping is a security feature implemented on network switches to prevent malicious or unauthorized DHCP servers from providing IP addresses to clients. It works by inspecting DHCP traffic and filtering out unauthorized DHCP server messages. It builds and maintains a DHCP snooping binding table (or database) which contains information about legitimate DHCP leases on the network. This table is then used to validate subsequent DHCP requests and responses, preventing attacks such as DHCP starvation and rogue DHCP servers.

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What other technologies are related to DHCP Snooping?

DHCP Snooping Complementary Technologies

Port Security

Port security helps prevent unauthorized devices from connecting to the network, complementing DHCP snooping's role in preventing rogue DHCP servers and IP address spoofing.

mentioned alongside DHCP Snooping in 8% (130) of relevant job posts

802.1x

802.1x provides network access control based on authentication, which complements DHCP snooping by ensuring only authorized devices receive IP addresses.

mentioned alongside DHCP Snooping in 1% (90) of relevant job posts

NAC

Network Access Control (NAC) enforces security policies on devices before granting network access, complementing DHCP snooping by ensuring only compliant devices get IP addresses.

mentioned alongside DHCP Snooping in 1% (85) of relevant job posts