I am about to deploy roughly 1000 APs of different models (old 1000 series, Aironet, Catalyst, etc., all Cisco) in geo-dispersed braches. Each branch has their own Windows DHCP servers where there would be IP reservation for all access points.
I was thinking of specifying Option 43 in HEX as I normally do. But, some colleagues came across the configuration guide where they would specify user-defined VCI then sub-option 102 (or 241) for 1000 and Aironet, respectively. The thing I find this type of configuration unnecessary is:
Therefore I would like to ask if I just specify Option 43 in HEX, would all AP operate normally?
Thanks in advance.
Solved! Go to Solution.
Well as I have mentioned, we only have Cisco 1000 series, Aironet and Catalyst.
Recommended is using DHCP Option 43 but DNS can also be used.
Hi @Leo Laohoo,
Just another question. On Windows DHCP, is the Type's hex supposed to be 0xF1 (f1) or 0x00 0xF1 (00f1)?
I came across guides that seemed to mention different hex for the Type part
Take a look at some online calculators for option 43.
f104 - single controller
f108 - two controllers
Hi @Scott Fella,
I know well about how to calculate Option 43. My question was about the way to configure it on Windows DHCP Server, whether to append a 0x00 before the 0xF1 part or not.
As seen in my previous post, the YouTube video mentioned that the Hexa part only needs 0xF1, while the guide underneath stated that on Windows DHCP Server it needs to be 0x00 0xF1. In this Cisco technote, the photo also shows the Binary to be 0x00 0xF1 0x08 etc. - but if you calculate Option 43 it should only be 0xF1 0x08 etc.