D-Link DES-1210-10/ME [55/129] Configuration dhcp bootp relay dhcp bootp relay interface settings

D-Link DES-1210-10/ME [55/129] Configuration dhcp bootp relay dhcp bootp relay interface settings
4 Configuration DES-1210 Metro Ethernet Managed Switch User Manual
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DHCP Relay Agent Information Option 82 Remote ID: This field can be toggled between Default and User
Define.
NOTE: If the Switch receives a packet that
contains the option-82 field from a DHCP client
and the information-checking feature is enabled,
the switch drops the packet because it is invalid.
However, in some instances, you might configure
a client with the option-82 field. In this situation,
you should disable the information-check feature
so that the switch does not remove the option-82
field from the packet. You 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/BOOTP Relay > DHCP/BOOTP Relay Interface Settings
This page allows the user to set up a server, by IP address, for relaying DHCP/BOOTP information the
switch. The user may enter a previously configured IP interface on the Switch that will be connected directly
to the DHCP/BOOTP server using the following window. Properly configured settings will be displayed in the
BOOTP 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 4.78 - Configuration > DHCP/BOOTP Relay > DHCP/BOOTP 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/BOOTP server. Up to four server IPs can be configured per IP
Interface.
Click Apply to implement changes made.
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 4.79 - Configuration > DHCP Local Relay Settings
DHCP/BOOTP 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.
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.

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