Option 43 DHCP

To give ip address info of wireless controller in DHCP.
We need to set it in Option 43.

Each Option 43 settings is different for Cisco, Ruckus or Ubiquity.

Aruba:
SOURCE:
Cisco DHCP
ip dhcp pool yournet
  network 10.0.30.0 255.255.255.0
  default-router 10.0.30.1
  option 60 ascii “ArubaAP”
  option 43 ip 10.0.10.243

Cisco:

Ruckus:
Ubiquity
add
# 01: suboption
# 04: length of the payload (must be 4 bytes)
# 192.168.0.1 in hex = c0a80001

result: option 43 hex 0104c0a80001

SOURCE:
The same Option is used to Disable NetBios via DHCP
Mikrotik Disable Netbios via DHCP
/ip dhcp-server option
add code=43 name=OptionDisableNetBios value=0x010400000002
/ip dhcp-server network
add address=192.168.1.0/24 dhcp-option=OptionDisableNetBios dns-server=\
192.168.1.1 gateway=192.168.1.1
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