topic Re: does that require dhcp option 43? in Wireless

does that require dhcp option 43?

wfqk — Mon, 05 Jul 2021 16:20:30 GMT

Hi following is steps for basic config. I wonder if all vendor device require Option43? thanks

In order to register the LAP to the WLC and for basic operation of the LWAPP wireless network, complete these steps:

Have a DHCP server present so that the APs can acquire a network address.

Note: Option 43 is used if the APs reside in a different subnet.

Configure the WLC for basic operation.

Configure the switch for the WLC.

Configure the switch for the APs.

balaji.bandi — Mon, 22 Oct 2018 20:44:58 GMT

If you looking to plug and play you LAP/WAP to get join WLC automatically Option 43 DHCP option tell LAP/WAP to register with WLC

if no Option 43 configured in DHCP, WAP does not know where to register.

pieterh — Tue, 23 Oct 2018 12:54:58 GMT

NO, not all vendor devices require option-43

the Cisco AP has several mechanisms to discover a controller

- lan-broadcast

- dns lookup of specific dns-records

- dhcp-option 43

- preconfigured addresses (primed using local console, or from previous configuration using wlc)

other vendors have matching mechanisms, but option-43 will not be the only option you have

balaji.bandi — Tue, 23 Oct 2018 13:09:34 GMT

In your case what vendor we talking here ? and model ?

wfqk — Wed, 24 Oct 2018 17:30:46 GMT

@balaji.bandi wrote:

In your case what vendor we talking here ? and model ?

They are Cisco WLC5508 and AP 1131, 1142 and 3502/3602.

Do you mean some of vendor or model have to need option 43, and others do not?