WLC 9800 at HQ serving multiple remote site APs

[K-F-B]

Hi Guys! I'm currently designing a wireless infrastructure where in my WLC will be located at HQ and it will be serving multiple remote sites. What do I need in terms of connectivity between sites?

[balaji.bandi]

You can central WLC and you only going to have AP Installed on remote sites right ?  AP need reachability to join the WLC to Service the clients on remote end to use broadcast SSID

look at the some deployment guide :

https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/cisco-campus-lan-wlan-design-guide.html

[Gaurav Kansal]

Dear K-F-B,
You must enable the reachablity of access points to the controller with opening following ports:
CAPWAP PORTS:

    5246/UDP      -Control Channel

    5247/UDP      -Data Channel

Access point will join controllers only through these ports and continue to communicate on these ports.
You can ask if you want to elaborate this as per your need.!!

Goodluck..