Allied Telesis AlliedWare Plus Operating System Version 5.4.4C (x310-26FT,x310-26FP,x310-50FT,x310-50FP) - Manual (Page 1458)

DHCP Snooping Commands
Software Reference for x310 Series Switches
56.20 AlliedWare Plus TM Operating System - Version 5.4.4C C613-50046-01 REV A
ip dhcp snooping trust
Use this command to set the ports to be DHCP snooping trusted ports.
Use the no variant of this command to return the ports to their default as untrusted ports.
Syntax ip dhcp snooping trust
no ip dhcp snooping trust
Default All ports are untrusted by default.
Mode Interface Configuration (port)
Usage Typically, ports connecting the switch to trusted elements in the network (towards the
core) are set as trusted ports, while ports connecting untrusted network elements are set
as untrusted. Configure ports connected to DHCP servers as trusted ports.
Example To set switch ports 1.0.1 and 1.0.2 to be trusted ports, use the commands:
Related Commands show ip dhcp snooping interface
awplus# configure terminal
awplus(config)# interface port1.0.1-port1.0.2
awplus(config-if)# ip dhcp snooping trust