Technical data

83
To list the definition for option 1, if option 1 is defined, type:
d
hcp list definedoptions
1
To list the definition for all options that are well-known AND have a name starting with 'h', type:
dhcp list definedoptions h
Example:
To define a new option with a code of 128, a minimum number of IP addresses of 1, a maximum number of
IP addresses of 4, of type “IP address”, type:
dhcp add 128 1 4 ipAddress
This information implies that:
• Some DHCP client will know about the option with code 128.
• Option 128 allows IP addresses.
• The server can have a minimum of 1 IP address.
• The server can have up to 4 IP addresses.
• The administrator will still need to set the option value either globally, specific to a subnetwork, or
specific to a client for the option to have any meaning.
To delete the definition of the option with code 128, type:
dhcp del 128
The values for this option that have been set globally, specific to a subnetwork, or specific to a client will
NOT be removed. The administrator must remove those values explicitly. Well-known type option codes
CANNOT be changed or deleted.
Configuring BootP/DHCP Relays
BootP/DHCP Relays are used by system administrators when the DHCP configuration parameters are acquired
from a BootP/DHCP server other than the router’s DHCP server.
This feature allows configuration information to be centrally controlled. Enabling a BootP/DHCP Relay disables
DHCP on the router since (by definition) only one policy mechanism can be supported.
BootP/DHCP Relays are enabled and disabled using the command:
system bootpserver