General Guidelines - Allied Telesis AT-GS950/24 User Manual

Chapter 16: DHCP Snooping

General Guidelines

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Here is a summary of the rules to observe when you configure DHCP
Snooping:
A trusted port is connect to one of the following:

– Directly to the legitimate trusted DHCP Server.
– A network device relaying DHCP messages to
and from a trusted server.
– Another trusted source such as a switch with
DHCP Snooping enabled.
Untrusted ports are connected to DHCP clients and to traffic that

originates outside of the local area network.
The VLANs to which the DHCP Snooping feature applies must be

specified in the DHCP Snooping VLAN Setting configuration.
Any static IP addresses on the network must be manually added to

the Binding Database.