4/16/2023 0 Comments Dhcp snooping enterasys![]() Checking the DHCP-snooping configuration.This chapter covers the following topics: ![]() ![]() ![]() You indicate that a source is trusted by configuring the trust state of its connecting interface.įor additional security, you can specify in the CLI which DHCP servers that DHCP snooping will include in the allowed server list. In the FortiSwitch unit, all ports are untrusted by default, and DHCP snooping is disabled on all untrusted ports. Other security features like dynamic ARP inspection (DAI), a security feature that rejects invalid and malicious ARP packets, also use information stored in the DHCP-snooping binding database. Building and maintaining a DHCP snooping binding database, which contains information about untrusted hosts with leased IP addresses.For example, a request to decline an DHCP offer or release a lease is ignored if the request is from a different interface than the one that created the entry. Validating DHCP messages received from untrusted sources and filtering out invalid messages.To prevent this, DHCP snooping filters messages on untrusted ports by performing the following activities: The DHCP-snooping feature monitors the DHCP traffic from untrusted sources (for example, typically host ports and unknown DHCP servers) that might initiate traffic attacks or other hostile actions.
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