User Manual

Configure System Information
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ProSAFE 10-Gigabit Smart Managed Switch XS708T and XS716T User Manual
DHCP L2 Relay
DHCP relay agents eliminate the need to connect to a DHCP server on each physical
network. Relay agents populate the giaddr field and also append the Relay Agent Information
option to the DHCP messages. DHCP servers use this option for IP addresses and other
parameter assignment policies. These DHCP relay agents are typically IP routing-aware
devices and are referred to as Layer 3 relay agents. In some network configurations, a need
might exist for Layer 2 devices to append the Relay Agent Information option as they are
closer to the end hosts.
These Layer 2 devices typically operate only as bridges for the network and might not include
an IPv4 address on the network. Lacking a valid IPv4 source address, they cannot relay
packets directly to a DHCP server located on another network. These Layer 2 devices
append the Relay Agent Information option and broadcast the DHCP message.
DHCP L2 Relay Global Configuration
Use this page to view and configure the global settings for DHCP snooping.
 To enable DHCP L2 Relay global 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 Change the Default IP Address of the
Switch on page 10.
The login window opens.
4. Enter the switch’s password in the Password field.
The default password is password.
The System Information page displays.
5. Select System> Services > DHCP L2 Relay > DHCP L2 Relay Global Configuration.