Install guide

24 DHCP Option 82 Relay Release Note
Software Version 2.7.5
C613-10454-00 REV A
set bootp relay option82
Syntax SET BOOTp RELAy OPTion82
[CHEck={YES|NO|ON|OFF|True|False}]
[POLIcy={DROP|KEEP|REPLACE}]
Description This command defines the checking and re-forwarding settings used by DHCP
Option 82. When Option 82 is enabled, the DHCP relay agent inserts Option 82
information into the DHCP options field when forwarding client-originated
BOOTP/DHCP packets to a DHCP server. Option 82 must be enabled with the
enable bootprelay option 82 command for the settings you specify to take
effect.
Use the check parameter to specify whether the Option 82 information that is
returned from the DHCP server is to be checked or not. When checking is
enabled, server DHCP packets that contain valid Option 82 information are
forwarded to the client, and packets that do not contain valid Option 82
information are dropped. If yes is specified, checking is enabled. The values
yes, on, and true are equivalent. If no is specified, Option 82 information
returned from the DHCP server is not checked. The values no, off, and false
are equivalent. The default is yes.
Use the policy parameter to specify the re-forwarding policy of client DHCP
packets that contain Option 82 information. If drop is specified, client DHCP
packets that contain Option 82 information are dropped. If keep is specified,
the packet keeps its existing Option 82 information. If replace is specified, the
existing Option 82 information is replaced with that of the local device. The
default is replace.
Example To set the re-forwarding policy to drop client DHCP packets with Option 82
information, use the command:
set boot rela opt poli=drop