
8-Port Gigabit (PoE+) Ethernet Smart Managed Pro Switch with (2 SFP or 2 Copper Ports and)
Cloud
Management
Configure System Information
User Manual
122
Configure DHCP snooping
DHCP snooping is a useful feature that 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.
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