Hi All at HQ WLC is installed with 50 AP across the campus. We got 40 branches all connected to HQ over IPSEC VPN. Wireless is the requirement in each branch for smart device and handheld. WLC is 5508 series and all AP are 2600 series
Need guidance on registering AP installed in branches to HQ WLC.
STill some questions are not clear
From where the users will get IP address when connected to branch AP
What happens if the IPSEC VPN is down, will the users be still connected to wireless and use local resource in the branch over wireless
From where the AP will get IP address
what will be the authentication method - preshared key or 802.1x authentication
1. From where the users will get IP address when connected to branch AP
If you put branch AP in "Local mode" users will get IP from your WLC connected switch in HQ. If you put branch AP in "FlexConnect mode" then you can terminate brach users in branch switch.
2. What happens if the IPSEC VPN is down, will the users be still connected to wireless and use local resource in the branch over wireless
Yes, if you configure your WLAN as FlexConnect local switching, then whoever client conneted prior to WAN goes down able to stay connected & access your branch local resources. (provided they are getting IP from branch DHCP server)
3. From where the AP will get IP address
Branch AP will get IP from your branch switch (if it is DHCP server for AP managment)
4. what will be the authentication method - preshared key or 802.1x authentication
That's depend on your requirement, you can have any of that. If you are using 802.1X then if your RADIUS server is in HQ, then all client authentications will come through IPSec VPN. So when VPN is down new yours may not able to authenticate. If you use PSK, then even VPN is down, brach users able to authenticate.
Have a look on below CiscoLive session that would cover most of the thing you asked.
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