DGS-1510/ME Series Metro Ethernet Switch CLI Reference Guide
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DGS-1510-28XMP/ME:admin# config dhcp_relay delete vlanid 2-3 10.43.21.12
Command: config dhcp_relay delete vlanid 2-3 10.43.21.12
Success.
20-6 config dhcp_relay option_82
Description
This command is used to configure the processing of DHCP 82 option for the DHCP relay function.
Format
config dhcp_relay option_82 {state [enable | disable] | check [enable | disable] | policy [replace | drop |
keep] | remote_id [default | user_define <desc 32>]}(1)
Parameters
state - When the state is enabled, the DHCP packet will be inserted with the option 82 field before being relayed
to server. The DHCP packet will be processed based on the behavior defined in check and policy setting.
When the state is disabled, the DHCP packet will be relayed directly to server without further check and
processing on the packet. The default setting is disabled.
enable - Specifies that the option 82 processing will be enabled.
disable - Specifies that the option 82 processing will be disabled.
check - When the state is enabled, For packet come from client side, the packet should not have the option 82’s
field. If the packet has this option field, it will be dropped. The default setting is disabled.
enable - Specifies that checking will be enabled.
disable - Specifies that checking will be disabled.
policy - Specifies the policy used. This option takes effect only when the check status is disabled. The default
setting is set to ‘replace’.
replace - Replace the existing option 82 field in the packet. The Switch will use its own Option 82 value to
replace the old Option 82 value in the packet.
drop - Discard if the packet has the option 82 field. If the packet, that comes from the client side, contains and
Option 82 value, then the packet will be dropped. If the packet, that comes from the client side doesn’t
contain an Option 82 value, then insert its own Option 82 value into the packet.
keep - Retain the existing option 82 field in the packet. If the packet, that comes from the client side, contains
and Option 82 value, then keep the old Option 82 value. If the packet, that comes from the client side,
doesn’t contain an Option 82 value, then insert its own Option 82 value into the packet.
remote_id - Specifies the content in Remote ID sub-option.
default - Use switch’s system MAC address as remote ID.
user_define - Use user-defined string as remote ID. The space character is allowed in the string.
<desc 32> - Enter the user defined description here. This value can be up to 32 characters long.
Restrictions
Only Administrators, Operators and Power-Users can issue this command.
Example
To configure dhcp_relay option 82:
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