ECS4100 Series CLI Reference Guide-R07

Chapter 32 | DHCP Commands
DHCP Server
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option 43 Use this command to enable option 43 which helps controller-based wireless
access points associate with a wireless access point controller. Use the no form of
the command to disable option 43.
Syntax
option 43 {ascii word | hex hex-value | ip-address address1[address2
[address3[ address 4]]]}
ascii word - ASCII character string representing the Wireless Access
Controllers (Range: 1-48 ASCII characters).
hex hex-value - A concatenated hex number string of up to 4 IPv4
addresses in hex format each representing a wireless access controller.
ip-address address - up to 4 IPv4 addresses can be entered sequentially
with blank spaces between. Each address represents a wireless access
controller.
Default:
Disabled
Command Mode:
DHCP Pool Configuration
Command Usage:
To convert and IPv4 address to a hex number string, each octet of the address is
individually converted to hex and then all four hex values obtained concatenated.
Take for example the address 192.168.2.1, 192=c0
16
, 168=a8
16
, 2=02
16
, and 1=01
16
resulting in c0a80201
16
as the hex value for the IPv4 address.
Example
In this example wireless controllers 192.168.2.1 and 192.168.3.1 are entered in hex
format using the option 43 command.
Console(config-dhcp)#option 43 hex c0a802021c0a80301
Console(config-dhcp)#Console
clear ip dhcp binding This command deletes an automatic address binding from the DHCP server
database.
Syntax
clear ip dhcp binding [address]
address - The address of the binding to clear.
Default Setting
None