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4 Web-based Switch Configuration
D-Link DGS-2000 Series Ethernet Switch User Manual
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situation, user should disable the information-check
feature so that the switch does not remove the option-82
field from the packet. User can configure the action that
the switch takes when it receives a packet with existing
option-82 information by configuring the
DHCP Agent
Information Option 82 Policy
.
Configuration > DHCP Relay > DHCP Relay Interface Settings
This page allows the user to set up a server, by IP address, for relaying DHCP information the switch. The
user may enter a previously configured IP interface on the Switch that will be connected directly to the DHCP
server using the following window. Properly configured settings will be displayed in the
DHCP Relay Table
at
the bottom of the following window, once the user clicks the
Add
button under the
Apply
heading. The user
may add up to four server IPs per IP interface on the Switch. Entries may be deleted by clicking Delete
button.
Figure 4.82 - Configuration > DHCP Relay > DHCP Relay Interface Settings
Interface
: The IP interface on the Switch that will be connected directly to the Server.
Server
IP: Enter the IP address of the DHCP server. Up to four server IPs can be configured per IP Interface.
Click
Apply
to make the configurations take effect.
Configuration > DHCP Local Relay Settings
The DHCP Local Relay Settings page allows the user to configure DHCP Local Relay. DHCP broadcasts are
trapped by the switch CPU, and replacement broadcasts are forwarded with Option 82. Replies from the
DHCP servers are trapped by the switch CPU, the Option 82 is removed and the reply is sent to the DHCP
Client.
Figure 4.83 - Configuration > DHCP Local Relay Settings
DHCP Local Relay Status:
Specifies whether DHCP Local Relay is enabled on the device.
Enabled –
Enables DHCP Local Relay on the device.
Disabled –
Disables DHCP Local Relay on the device. This is the default value.
DHCP Local Relay Port List:
Specifies the port or ports for DHCP local relay port.
Config VLAN by:
Configure the VLAN by VID or VLAN Name of drop-down menu.
State:
Specifies whether DHCP Local Relay is enabled on the VLAN.
Enabled –
Enables DHCP Local Relay on the VLAN.
Disabled –
Disables DHCP Local Relay on the VLAN.
DHCP Local Relay VID List:
Displays the list of VLANs on which DHCP Local Relay has been defined.