Dhcp Local Relay Settings - D-Link xStack Reference Manual

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xStack DGS-3620 Series Layer 3 Managed Stackable Gigabit Switch Web UI Reference Guide
DHCPv6 Relay Option 37 Settings
This window is used to configure the processing of Option 37 for the DHCPv6 relay function. When the DHCPv6
relay Option 37 is enabled, the DHCP packet will be inserted with the Option 37 field before being relayed to server.
The DHCP packet will be processed based on the behavior defined in the check and remote ID type setting. When
the state is disabled, the DHCP packet will be relayed directly to server without further checks and inserted with the
Option 37.
To view this window, click Network Application > DHCP > DHCPv6 Relay > DHCPv6 Relay Option 37 Settings
as shown below:
The fields that can be configured are described below:
Parameter
State
Check
Remote ID
Click the Apply button to accept the changes made.

DHCP Local Relay Settings

The DHCP local relay settings allows the user to add option 82 into DHCP request packets when the DHCP client
gets an IP address from the same VLAN. If the DHCP local relay settings are not configured, the Switch will flood
the packets to the VLAN. In order to add option 82 into the DHCP request packets, the DHCP local relay settings
and the state of the Global VLAN need to be enabled.
To view this window, click Network Application > DHCP > DHCP Local Relay Settings as shown below:
Figure 10-27 DHCPv6 Relay Option 37 Settings window
Description
Select the DHCPv6 relay Option 37 state.
Enabled - When the state is enabled, the DHCP packet will be inserted with the Option
37 field before being relayed to server.
Disabled - When the state is disabled, the DHCP packet will be relayed directly to
server without further checks and inserted with the Option 37.
Select the check state. This specifies that packets coming from client side should or
should not have the Option 37 field. If client originating packets have the Option 37
field set they will be dropped.
Enabled - Specifies that the check option is enabled.
Disabled - Specifies that the check option is disabled.
Select the remote ID state. This specifies the content in the Remote ID.
Default - Specifies that the remote ID will contain the VLAN ID, Module, Port, and
System MAC address of the device.
CID With User Define - Specifies that the remote ID will contain the VLAN ID, Module,
Port, and a user defined string. After selecting this option, enter the CID user defined
string in the space provided. This can be up to 128 characters long.
User Define - Specifies that the remote ID will be a user defined string. After selecting
this option, enter the user defined string in the space provided. This can be up to 128
characters long.
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