Configure System Information
98
Insight Managed 28-Port Gigabit Ethernet Smart Cloud Switch with 2 SFP 1G & 2 SFP+ 10G Fiber Ports
The following table describes the nonconfigurable data that is displayed.
8.
To refresh the page with the latest information about the switch, click the
Refresh
button.
9.
To clear all interfaces statistics, click the
Clear
button.
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.
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.
Enable the Global DHCP Snooping Settings
You can view and configure the global settings for DHCP snooping.
To enable the global DHCP snooping settings:
1.
Connect your computer to the same network as the switch.
You can use a WiFi or wired connection to connect your computer to the network, or
connect directly to a switch that is off-network using an Ethernet cable.
2.
Launch a web browser.
3.
In the address field of your web browser, enter the IP address of the switch.
If you do not know the IP address of the switch, see
Field
Description
Interface
The interface from which the DHCP message is received.
Untrusted Server
Messages With Opt82
The number of DHCP message with option82 received from an untrusted server.
Untrusted Client
Messages With Opt82
The number of DHCP message with option82 received from an untrusted client.
Trusted Server Messages
Without Opt82
The number of DHCP message without option82 received from a trusted server.
Trusted Client Messages
Without Opt82
The number of DHCP message without option82 received from a trusted client.