User Manual

Insight Managed 8-Port Gigabit (Hi-Power) PoE+ Smart Cloud Switch with NETGEAR FlexPoE Power
Configure System Information User Manual103
Configure DHCP snooping
DHCP snooping provides security by filtering untrusted DHCP messages and by building and
maintaining a DHCP snooping binding table. An untrusted message is a message that is
received from outside the network or firewall and that can cause traffic attacks within your
network. The DHCP snooping binding table contains the MAC address, IP address, lease
time, binding type, VLAN number, and interface information that corresponds to the local
untrusted interfaces of a switch. An untrusted interface is an interface that is configured to
receive messages from outside the network or firewall. A trusted interface is an interface that
is configured to receive only messages from within the network.
DHCP snooping acts like a firewall between untrusted hosts and DHCP servers. It also
provides way to differentiate between untrusted interfaces connected to the end user and
trusted interfaces connected to the DHCP server or another switch.
Model Name The model name advertised by the remote device.
Asset ID The asset ID advertised by the remote device.
Location Information
Civic The physical location, such as the street address, that the remote device
advertised in the location TLV, for example, 123 45th St. E. The field value
length range is 6–160 characters.
Coordinates The location map coordinates that the remote device advertised in the
location TLV, including latitude, longitude, and altitude.
ECS ELIN The Emergency Call Service (ECS) Emergency Location Identification
Number (ELIN) that the remote device advertised in the location TLV. The
field range is 10–25.
Unknown The unknown location information for the remote device.
Network Policies
Application Type The media application type associated with the policy advertised by the
remote device.
VLAN ID The VLAN ID associated with the policy.
VLAN Type Specifies whether the VLAN associated with the policy is tagged or untagged.
User Priority The priority associated with the policy.
DSCP The DSCP associated with a particular policy type.
LLDP Unknown TLVs
Type The unknown TLV type field.
Value The unknown TLV value field.
Field Description