Allied Telesis x900-48 series - Manual (Page 4)

Page 4 | AlliedWare™ OS How To Note: DHCP snooping on AT-9900-style switches
DHCP snooping > Minimum configuration
Minimum configuration
On x900 and AT-9900 series switches, below is the minimum configuration required to use
DHCP snooping and provide unfiltered connectivity. With this configuration a client will be
able to receive a DHCP address, and access the IP network unfiltered. Also, the
administrator will be able to see the current valid entries in the DHCP snooping database.
Note: With this configuration, a client could manually change its IP and MAC address and
be able to access the IP network unfiltered.
# DHCP Snooping configuration - Pre QoS
enable dhcpsnooping
set dhcpsnooping port=24 trusted=yes
# CLASSIFR configuration
create classifier=50 macsaddr=dhcpsnooping protocol="ip"
ipsaddr=dhcpsnooping
# QOS configuration
create qos policy=1
create qos trafficclass=1
create qos flow=50 action=FORWARD
add qos policy=1 trafficclass=1
set qos port=1-23 policy=1
add qos trafficclass=1 flow=50
add qos flow=50 classifier=50