Centralized Auth. / Local Switching - Common SSID

Hi All,
I'm looking at a design where I would have a few remote sites and a centralized WLC. My requirement would be to have a common SSID advertised across the remote sites and have that SSID locally switch; so to note tunnel all the traffic across the WAN back to the central site.
I know the feature I'm looking for is H-REAP with Centralized Authentication and Local switching...but I'm unsure of the second part...which is to have a common SSID across the remote sites. How do I accomplish the second part? I heard mention of using AP Groups in another post. Just looking for more direction.

You're all correct except on the last part.
what you want to do is configure your SSID in advanced options to enable HREAP Local switching.
Then only the APS at remote site you move to HREAP mode one by one.
From there, all the APs you configured as HREAP will be locally switching traffic and the APs in local mode will still forward traffic through the controller.
I hope this clarifies ?
Nicolas
===
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Similar Messages

Central Authentication / Local Switching for Mesh?

Hi all,
I'm afraid I know the answer but maybe I'm just missing something. Anyway, here's the situation: I have a multi-site installation with a centralized WLC (currently 2504). Each wireless VLAN at each site uses the same ID but has a local network (e.g. site 2 is 192.168.2.0/24, site 3 is 192.168.3.0/24 but both are VLAN 100).
When I configure APs for H-REAP/FlexConnect, there's no problem. Users are authenticated via a centralized RADIUS server (Cisco SecureACS 5.x) and I have local switching enabled so clients pick up an address from a localized DHCP server (ASA firewall in most cases).
However, the impetus for installing the WLC requires a mesh network, consisting of 2 RAPs and 2 MAPs. My catch 22 is now this: if a RAP is in FlexConnect mode, the MAP won't associate, but if the RAP is in RAP mode, the MAP associates, but clients don't appear to get IP addresses (on an iPhone for example, the wheel just keeps spinning until it gives up).
It's my understanding that since the APs are no longer in FlexConnect mode, all the wireless traffic is now being tunneled back through the centralized WLC which associates the VLANs with networks that don't exist on site.
Is my understanding correct? If so, is there any way I can go about achieving what I want to do which is get the FlexConnect effect but still have Mesh capabilities? Right now it seems the obvious (albeit very expensive answer) is to decentralize the WLC and have HA WLC configured on a per site basis.
Any input/advice greatly appreciated. Thank you.

I second your thought about mesh and as for what to do - I don't think you can do anything. Perhaps, a cheap way to solve this problem can be installing a local 2504 at sites that require mesh links. This will allow you terminating all VLAN/SSID mappings locally. Sorry :-(

HREAP local switching with web auth

Hello All,
Does web authentication work perfectly fine while locally switching the SSID on Hreap mode APs with older WLC firmwares - 7.0.98.218.
I see it is supported in 7.0.116.0 onwards. Does it work on older versions? Has anyone tested and faced any issues?
Thanks
Jeen

It worked as far back as 4.0 from what I remember
Steve
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High CAPWAP traffic when locally switched

Hello all,
We're seeing an ongoing issue where several APs accross multiple sites log the error, "%CAPWAP-3-ERRORLOG: Retransmission count for packet exceeded max(CAPWAP_WTP_EVENT_REQUEST., 12)", then disassociates from the controller, and reassociates almost immediately. The issue is the users get disassociated from the AP and call the helpdesk.
A counter measure at one site was to add the CAPWAP traffic (udp ports 5246 & 5247) to the controller in our QOS Platinum policy (setting the DSCP bit to 'ef'), but that doesn't seem to help.
We're using Flexconnect with central authentication, local switching.
A couple of questions:
1) The Platinum queue on the QOS is showing over 500 kbps when the only thing put in that queue is the CAPWAP traffic - there aren't any phones. Why so much bandwidth for authentication and control traffic?
2) What is happening with the APs that they can't talk to the controller that causes the issue in the first place? Bandwidth doesn't seem to be an issue.
Below are some config and outputs:
AP-1242#show capwap reap status
AP Mode:         REAP, Connected
Radar detected on:
AP-1242#show capwap reap association
REAP Data Switching: Local
2960#show int fa0/22
Hardware is Fast Ethernet
Full-duplex, 100Mb/s, media type is 10/100BaseTX
Last input 00:00:22, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 23000 bits/sec, 13 packets/sec
5 minute output rate 208000 bits/sec, 48 packets/sec
     37478173 packets input, 13839718021 bytes, 0 no buffer
     Received 2818773 broadcasts (0 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 502342 multicast, 0 pause input
     0 input packets with dribble condition detected
     118634332 packets output, 36491262361 bytes, 0 underruns
     0 output errors, 0 collisions, 1 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 PAUSE output
     0 output buffer failures, 0 output buffers swapped out
2811#show policy-map interface multilink 1
Service-policy output: MPLS-QOS
    queue stats for all priority classes:
       queue limit 64 packets
      (queue depth/total drops/no-buffer drops) 0/0/0
      (pkts output/bytes output) 300637/46124112
    Class-map: PLATINUM (match-any)
      300637 packets, 46124112 bytes
      30 second offered rate 28000 bps, drop rate 0 bps
      Match: ip dscp ef (46)
        300637 packets, 46124112 bytes
        30 second rate 28000 bps
      Priority: 18% (552 kbps), burst bytes 13800, b/w exceed drops: -16
Any help is appreciated.

Hi Jeff,
I think you are hitting a bug (CSCse92856) specific to 1242 AP. Solution given is "Enable Proxy ARP on the default-gateway device of your AP". You can try that & see.
Even I cannot view detail of this bug as of insufficient access permission.Therefore I do not know more details about this bug fix & which software version affected,etc. Better you contact Cisco TAC & get more information.
I found this infomration here
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a008081103d.shtml
One other reason that H-REAP APs do not join WLCs is if the Proxy ARP is disabled on the gateway for the H-REAP APs. From the AP console, this message is logged:
*Jul 29 14:04:10.897: LWAPP_CLIENT_ERROR_DEBUG:
Retransmission count for packet exceeded more than max(CHANGE_STATE_EVENT , 1)
This can be caused by Cisco bug ID CSCse92856. This problem applies only to AP1130 and AP1240. This problem does not apply to AP1000s, AP1100, or AP1200.
This problem occurs when these conditions are met:
HREAP mode is used in the WLAN. Local mode is not affected by this issue. Native VLAN mapping is required.
The APs have to be on a different IP subnet than the AP Manager of the WLCs.
Proxy ARP is disabled on the default gateway for the AP.
The H-REAP AP gets the default gateway from a DHCP server.
In order to resolve this issue, enable Proxy ARP on the default gateway router of the AP
HTH
Rasika
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Centrally Switched and Flex Local Switched WLAN - same SSID

Hi All
I am currently working on a WLAN migration from lightweight to autonomous and would like advice on whether the following scenario is possible.
We've deployed an 8500HA pair at the customer's central HQ with the plan that SSIDs at the central HQ will centrally switch with SSIDs at branch sites locally switching. AP and Flex groups have been configured for the HQ and branch sites. There is a legacy SSID at HQ that will need to break out locally so a flex group is required for HQ.
My original plan was to do this with one WLAN Profile per SSID, configured to locally switch. The HQ AP group will map WLAN to the relevant IP interface with the SSID omitted from the HQ Flex Group so that the SSID will centrally switch. The branch AP groups will be configured with the SSIDs required for branch and Flex groups will be configured to break out the SSIDs into the relevant local VLAN.
My question is, is it possible for an SSID to be configured as locally switched for branches but also centrally switched for HQ, by configuring it in the HQ AP Group but omitting it from the HQ Flex group?
Configured as above a client debug gives the below which seems to suggest that it isn't possible, unless I've configured something incorrectly...
*apfMsConnTask_5: Oct 03 15:48:51.012: c0:18:85:48:c0:5d Central switch is FALSE
My alternative option is to create a second WLAN profile for each SSID with the same SSID name but centrally switched and then apply that accordingly in the AP groups.
If someone can verify the above I'd be very grateful.
Many thanks in advance
Mark

Hi Mark
My question is, is it possible for an SSID to be configured as locally switched for branches but also centrally switched for HQ, by configuring it in the HQ AP Group but omitting it from the HQ Flex group?
When you configure an SSID for local switching, it is only applicable if AP in Flexconnnect mode. So as long as your HQ APs are in Local mode then all those users traffic will be central switch for the given SSID. At branch those AP are in Flex mode, they will locally switched.
Pls do not forget to rate our responses if that is useful to you
HTH
Rasika

Clients not receiving DHCP IP address from HREAP centrally Switched Guest SSID

Hi All,
I am facing a problem in a newly deployed branch site where the Clients are not receiving DHCP IP address from a centrally switched Guest SSID. I see the client status is associated but the policy manager state is in DHCP_REQD.
The dhcp pool is configured on the controller itself. The local guest clients are able to get DHCP and all works fine, the issue is only with the clients in the remote site. The Hreap APs are in connected mode. Could you please suggest what could be the problem. Below is the out of the debug client.
*apfMsConnTask_3: May 24 13:26:49.372: 10:40:f3:91:7e:24 Adding mobile on LWAPP AP 3c:ce:73:6d:37:00(1)
*apfMsConnTask_3: May 24 13:26:49.372: 10:40:f3:91:7e:24 Reassociation received from mobile on AP 3c:ce:73:6d:37:00
*apfMsConnTask_3: May 24 13:26:49.372: 10:40:f3:91:7e:24 0.0.0.0 START (0) Changing ACL 'Guest-ACL' (ACL ID 0) ===> 'none' (ACL ID 255) --- (caller apf_policy.c:1393)
*apfMsConnTask_3: May 24 13:26:49.372: 10:40:f3:91:7e:24 Applying site-specific IPv6 override for station 10:40:f3:91:7e:24 - vapId 17, site 'APG-MONZA', interface 'vlan_81'
*apfMsConnTask_3: May 24 13:26:49.372: 10:40:f3:91:7e:24 0.0.0.0 START (0) Changing ACL 'none' (ACL ID 255) ===> 'none' (ACL ID 255) --- (caller apf_policy.c:1393)
*apfMsConnTask_3: May 24 13:26:49.372: 10:40:f3:91:7e:24 Applying IPv6 Interface Policy for station 10:40:f3:91:7e:24 - vlan 81, interface id 13, interface 'vlan_81'
*apfMsConnTask_3: May 24 13:26:49.372: 10:40:f3:91:7e:24 Applying site-specific override for station 10:40:f3:91:7e:24 - vapId 17, site 'APG-MONZA', interface 'vlan_81'
*apfMsConnTask_3: May 24 13:26:49.372: 10:40:f3:91:7e:24 0.0.0.0 START (0) Changing ACL 'none' (ACL ID 255) ===> 'none' (ACL ID 255) --- (caller apf_policy.c:1393)
*apfMsConnTask_3: May 24 13:26:49.372: 10:40:f3:91:7e:24 STA - rates (8): 140 18 152 36 176 72 96 108 0 0 0 0 0 0 0 0
*apfMsConnTask_3: May 24 13:26:49.372: 10:40:f3:91:7e:24 0.0.0.0 START (0) Initializing policy
*apfMsConnTask_3: May 24 13:26:49.372: 10:40:f3:91:7e:24 0.0.0.0 START (0) Change state to AUTHCHECK (2) last state AUTHCHECK (2)
*apfMsConnTask_3: May 24 13:26:49.372: 10:40:f3:91:7e:24 0.0.0.0 AUTHCHECK (2) Change state to L2AUTHCOMPLETE (4) last state L2AUTHCOMPLETE (4)
*apfMsConnTask_3: May 24 13:26:49.372: 10:40:f3:91:7e:24 0.0.0.0 L2AUTHCOMPLETE (4) Plumbed mobile LWAPP rule on AP 3c:ce:73:6d:37:00 vapId 17 apVapId 1
*apfMsConnTask_3: May 24 13:26:49.372: 10:40:f3:91:7e:24 0.0.0.0 L2AUTHCOMPLETE (4) Change state to DHCP_REQD (7) last state DHCP_REQD (7)
*apfMsConnTask_3: May 24 13:26:49.372: 10:40:f3:91:7e:24 apfMsAssoStateInc
*apfMsConnTask_3: May 24 13:26:49.373: 10:40:f3:91:7e:24 apfPemAddUser2 (apf_policy.c:222) Changing state for mobile 10:40:f3:91:7e:24 on AP 3c:ce:73:6d:37:00 from Idle to Associated
*apfMsConnTask_3: May 24 13:26:49.373: 10:40:f3:91:7e:24 Scheduling deletion of Mobile Station: (callerId: 49) in 28800 seconds
*apfMsConnTask_3: May 24 13:26:49.373: 10:40:f3:91:7e:24 Sending Assoc Response to station on BSSID 3c:ce:73:6d:37:00 (status 0) ApVapId 1 Slot 1
*apfMsConnTask_3: May 24 13:26:49.373: 10:40:f3:91:7e:24 apfProcessAssocReq (apf_80211.c:4672) Changing state for mobile 10:40:f3:91:7e:24 on AP 3c:ce:73:6d:37:00 from Associated to Associated
*apfReceiveTask: May 24 13:26:49.373: 10:40:f3:91:7e:24 0.0.0.0 DHCP_REQD (7) State Update from Mobility-Incomplete to Mobility-Complete, mobility role=Local, client state=APF_MS_STATE_ASSOCIATED
*apfReceiveTask: May 24 13:26:49.373: 10:40:f3:91:7e:24 0.0.0.0 DHCP_REQD (7) pemAdvanceState2 4183, Adding TMP rule
*apfReceiveTask: May 24 11:35:53.373: 10:40:f3:91:7e:24 0.0.0.0 DHCP_REQD (7) Adding Fast Path rule
type = Airespace AP - Learn IP address
on AP 3c:ce:73:6d:37:00, slot 1, interface = 13, QOS = 3
ACL Id = 255, Jumbo F
*apfReceiveTask: May 24 13:26:49.373: 10:40:f3:91:7e:24 0.0.0.0 DHCP_REQD (7) Fast Path rule (contd...) 802.1P = 0, DSCP = 0, TokenID = 7006 IPv6 Vlan = 81, IPv6 intf id = 13
*apfReceiveTask: May 24 13:26:49.373: 10:40:f3:91:7e:24 0.0.0.0 DHCP_REQD (7) Successfully plumbed mobile rule (ACL ID 255)
*pemReceiveTask: May 24 13:26:49.373: 10:40:f3:91:7e:24 0.0.0.0 Added NPU entry of type 9, dtlFlags 0x0
*pemReceiveTask: May 24 13:26:49.373: 10:40:f3:91:7e:24 Sent an XID frame
*apfMsConnTask_3: May 24 13:26:49.401: 10:40:f3:91:7e:24 Updating AID for REAP AP Client 3c:ce:73:6d:37:00 - AID ===> 1
*apfReceiveTask: May 24 13:28:49.315: 10:40:f3:91:7e:24 0.0.0.0 DHCP_REQD (7) DHCP Policy timeout
*apfReceiveTask: May 24 13:28:49.315: 10:40:f3:91:7e:24 0.0.0.0 DHCP_REQD (7) Pem timed out, Try to delete client in 10 secs.
*apfReceiveTask: May 24 13:28:49.315: 10:40:f3:91:7e:24 Scheduling deletion of Mobile Station: (callerId: 12) in 10 seconds
*osapiBsnTimer: May 24 13:28:59.315: 10:40:f3:91:7e:24 apfMsExpireCallback (apf_ms.c:599) Expiring Mobile!
*apfReceiveTask: May 24 13:28:59.315: 10:40:f3:91:7e:24 apfMsExpireMobileStation (apf_ms.c:4897) Changing state for mobile 10:40:f3:91:7e:24 on AP 3c:ce:73:6d:37:00 from Associated to Disassociated
*apfReceiveTask: May 24 13:28:59.315: 10:40:f3:91:7e:24 Scheduling deletion of Mobile Station: (callerId: 45) in 10 seconds
*osapiBsnTimer: May 24 13:29:09.315: 10:40:f3:91:7e:24 apfMsExpireCallback (apf_ms.c:599) Expiring Mobile!
*apfReceiveTask: May 24 13:29:09.316: 10:40:f3:91:7e:24 Sent Deauthenticate to mobile on BSSID 3c:ce:73:6d:37:00 slot 1(caller apf_ms.c:4981)
*apfReceiveTask: May 24 13:29:09.316: 10:40:f3:91:7e:24 apfMsAssoStateDec
*apfReceiveTask: May 24 13:29:09.316: 10:40:f3:91:7e:24 apfMsExpireMobileStation (apf_ms.c:5018) Changing state for mobile 10:40:f3:91:7e:24 on AP 3c:ce:73:6d:37:00 from Disassociated to Idle
*apfReceiveTask: May 24 13:29:09.316: 10:40:f3:91:7e:24 0.0.0.0 DHCP_REQD (7) Deleted mobile LWAPP rule on AP [3c:ce:73:6d:37:00]
*apfReceiveTask: May 24 13:29:09.316: 10:40:f3:91:7e:24 Deleting mobile on AP 3c:ce:73:6d:37:00(1)
*pemReceiveTask: May 24 13:29:09.317: 10:40:f3:91:7e:24 0.0.0.0 Removed NPU entry.

#does the client at the remote site roams between AP that connects to different WLC?
#type 9 is not good.
*pemReceiveTask: May 24 13:26:49.373: 10:40:f3:91:7e:24 0.0.0.0 Added NPU entry of type 9, dtlFlags 0x0
#Does your dhcp server getting hits.
#Also, get debug dhcp message & packet.
#Dhcp server is not responding.
*apfReceiveTask: May 24 13:28:49.315: 10:40:f3:91:7e:24 0.0.0.0 DHCP_REQD (7) DHCP Policy timeout
*apfReceiveTask: May 24 13:28:49.315: 10:40:f3:91:7e:24 0.0.0.0 DHCP_REQD (7) Pem timed out, Try to delete client in 10 secs.

WebAuth on FlexConnect Local Switched SSID

Hi All
I'm working on getting internal WebAuth to work on a FlexConnect local switched SSID. From what I've been reading, it's possible but apparently not very straight forward.
FlexConnect AP - if the SSID isn't local switch, WebAuth of course works fine.
Once I set it to local switching, WebAuth breaks. Any way around that in 7.6?
Thanks

Figured it out just now. When using the WLC as a DHCP server(this is just a lab), selecting the Central DHCP Processing for use when in Local Switching also selects a box for NAT-PAT. Unselecting the NAT-PAT box fixed the broken WebAuth.
Going to have to figure out what that does.

Flexconnect localauth and centralized auth on same SSID

Hi,
We try to setup remote APs in FlexConnect mode and wants it set for local auth, while the main site (where the WLC resides) uses central authentication.
The SSID has is the same at both site so is the L2 security policy.
thanks,
Alex

Central vs Local authentication is a "per WLAN" configuration, so a single WLAN cannot have APs doing both central and local "authentication". You can keep the auth Central, and if you're FlexConnect groups are configured properly, your "remote" APs can always "failover/fallback" to using LocalAuth in the event of connectivity loss to the WLC (APs transition to standalone), but you can't explicitly force one or the other on the same WLAN.

Same wlan both locally switched and centrally switched

Scenario:
1 virtual wireless controller
50 access points, some of them some local to the controller (same site), other on remote sites, all in flexconnect mode.
Is there a way for a wlan to be locally switched for a group of ap's, essentialy those local to the controller, and centrally switched for other groups of ap's, in fact those placed on remote sites?
I've tried configuring flexconnect groups, and ap groups, but no luck, I've found no way to override the globally configured flag "flexconnec local switching".
I've also tried to create two identical wlans, one locally switched and the second globally switched, but the wlc refuses to activate the second one since it has the same ssid of the first one.
Regards,
Massimo.

Since you have vWLC all AP needs to be in FlexConnect mode (If you got a normal WLC you can keep HQ AP in local mode & Remote AP in Flex mode to achieve this)
I think in your case you have to either choose "Central Switching" or "local switching" for your APs.
Regards
Rasika
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Locally Switched / Centrally Switched on Flex Connect AP

Hi All,
Scenario (is this possible)
I have HQ Site (Site A) -with the WLC
I have a remote site (Site B) with one AP.
Site A has Internet Breakout. Site B doesn't
Is it possible with this one AP to have Multiple SSIDs, some of which are switched locally at the remote site and some which are switched centrally back at the HQ?
E.G I want to have SSID for the data vlan at Site B. Any Laptop connecting to this is dropped onto the Data VLAN.
I also want to have a GUEST SSID for Internet but have this traffic be tunneled back to HQ and use Internet Breakout there.
Is this possible?
Thanks

On the advanced tab of the WLAN you can enable that SSID for FC Local Switching. The AP then needs to be in Flexconnect mode. You then go to the FC tab of the AP and define the local VLANs for the locally switched WLANs. There will be 2 lists of SSIDs, locally switched and centrally switched. Obviously you don't define VLANs for the centrally switched WLANs.
Whatever you define on the AP will overwrite the interface on the WLC.
AP Groups and FC Groups are not needed.

HREAP local switching works perfectly BUT central switching fails when WLC is down. Doesnt fallback to local switching.

Hi All,
I am currently using as 4402 with 6.0.196 image. The APs that i am using is the 1130.
I have configure HREAP for Local switching, it works very well. I am even able to do 802.1x
Authentication after registering with ACS. Currently I am usng only 1 SSID. That SSID is mapped
to vlan 10 and my AP is on native Vlan 1.All the proper trunks and routing has been enabled.
The issue i have is that when I am trying to create a central switched WLAN that fallbacks to local
switching once the controller is down. The only diffrerence I made was to remove the "tick"/checkbox option
for "local Switching" on the WLAN page.
It is able to work if the controller is up, I am even able to get the IP network where the controller resides. However when
i tested by disconnecting the controller, The client is unable to authenticate or send traffic anymore. I've tried using WPA-PSK
and also WPA-PEAP-MSChapv2. Both fails miserably.
Does this mean that I need to create 2 WLANs? One for Local Switching and the other for Central Switching on the HREAP mode
APs.Cant i do it with just a single WLAN?
Thank you.
Warmest regards,
Azzafir Ariff Patel.

For h-reap, if your doing centrally switch due to using EAP for authentication and the ap looses connectivity to the WLC, then those users should be able to stay associated, but new users will not authenticate. WPA/WPA2-psk local switching should work even if the ap looses connectivity to the WLC since the h-reap ap will do the authentication. Here is a link you probobly already seen:
http://www.cisco.mn/en/US/products/ps6087/products_tech_note09186a0080736123.shtml#topic2

How to have H-REAP broadcast only specific locally switched SSID's?

I'm new to this H-REAP configuration, but in the main office we have about 6 WLAN's. I have a remote office which I want to have 2 new WLAN's and have them switched locally. How can I only have the H-REAP AP's at this site only broadcast those 2 SSID's vs all 8? I haven't really read anything about using AP Group VLAN's with H-REAP or know if that's even possible, but is this a possibility and if no,t what would you recommend?
Thanks for the help!

I may create another topic - but here it goes...
I've decided to try to use an existing WLAN in the H-REAP config...
-I've joined the AP to the remote controller, assigned it an IP, put it in H-REAP mode.
-I chose a WLAN, enabled local switching
-I went into the AP, configured the native VLAN, however, I CAN NOT change the vlan of the WLAN listed. It always goes back to default.
I verified the vlan exists on the switch, is routable, etc, the switch port is a member of that vlan, it is set as a trunk w/ 802.1q, etc.
Any ideas on what would cause this?
I am SOO close Thanks!

Multiple VLANs per SSID with local switch

Is it possible to use an 'AP Group' or 'Interface group' to assign multiple VLANs to a WLAN when remote, h-reap APs are in local switch mode?
If not, is there a way to overcome 500 maximum host per VLAN when APs are local switching?
Thanks!

dont think its possible...
I donno if the following config will even work but u can have the hreap APs connected at the remote site to map to different vlans...
Example:
AP1 -- ssid 1 --- vlan 10
AP2 -- said 1 --- vlan 11 and so forth..
Sounds crazy but i ll have to ponder on this a bit more.. Need a pen and paper to draw a quick topology :)...
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Confused: Central Switching/Local Switching

Was wondering if someone could explain local/central switching a little further, when it comes to HREAP/FlexConnect modes for CAPWAP AP's.
So in our environment, we're running 7.5.102.0 code on all of our WLC's. We have a central WLC in two of our regions(US and Europe). Each region provides internet services for the remote sites connected to it. So a site in Chicago comes back to our central office over an MPLS for their internet services; just as a site in italy comes back to our central office in the UK for their internet service over MPLS. These remote sites have AP's that are in FlexConnect mode back to the central WLC's.
My question......I understand that an AP in central switching mode tunnels the traffic back to the central controller, whereas local switching does not. However, what does that mean? If the WAN link goes down, how does local switching help? The internet is still down, since that's how the internet is advertised back from the central location. Does that just mean that local server can be accessed, over wireles, since we are in local switching mode? Same question for authentciation; Our AD servers are located at the central sites, with no AD servers at the remote sites. In local authentication mode, how would an AP register a user, if the MPLS link is down? Does it download some sort of cached directory for authentication?
Thanks for your help!

Yes, in local switching mode, wireless client traffic locally switched at the branch (you have to defined their SVI on branch switch) and they can access any branch resources whiel WAN link is down. If internet servie is provided by your central office, then they won't get internet services while your WAN link is down.
If you configured local authentication, yes WLC will pass credential (if WLC has user credential like WAP2-PSK or WEP) to AP where it can use for local authentication. If you are using dot1x with RADIUS & AD, then you should have redundancy of these services in order to Branch AP to use these in a situation controller is unavailable.
Following design guide should help you to understand this
http://www.cisco.com/en/US/docs/solutions/Enterprise/Mobility/emob73dg/ch7_HREA.html#wp1103070
Here is some of my notes related to different modes of operation of H-REAP/FlexConnect, that should help you as well
http://mrncciew.com/2013/03/10/h-reap-modes-of-operation/
HTH
Rasika
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Flexconnect Local Switching Hosts Do Not Receive IP Addresses

Hello,
My WLC software version is 7.4.110.0. I have a branch office in my lab. The AP in my branch is configured as flexconnect with native VLAN of 700. The SSID that I have in the branch office is configured to do local switching. The show wlan is added below.
My tunneled SSID still working and I can still receive IP addresses from it. My issue is last week I have the Flexconnect working with no problem, then this morning I can connect to the SSID, but I'm not receiving IP addresses for my test wireless clients.
Thanks
[code]
WLAN Identifier.................................. 2
Profile Name..................................... ACS Guest
Network Name (SSID).............................. RMTGuest
Status........................................... Enabled
MAC Filtering.................................... Disabled
Broadcast SSID................................... Enabled
AAA Policy Override.............................. Disabled
Network Admission Control
Client Profiling Status ....................... Disabled
   DHCP ......................................... Disabled
   HTTP ......................................... Disabled
Radius-NAC State............................... Disabled
SNMP-NAC State................................. Disabled
Quarantine VLAN................................ 0
Maximum number of Associated Clients............. 0
Maximum number of Clients per AP Radio........... 200
Number of Active Clients......................... 0
Exclusionlist Timeout............................ 60 seconds
Session Timeout.................................. 1800 seconds
User Idle Timeout................................ 300 seconds
--More-- or (q)uit
User Idle Threshold.............................. 0 Bytes
NAS-identifier................................... RK2WLC5508-01
CHD per WLAN..................................... Enabled
Webauth DHCP exclusion........................... Disabled
Interface........................................ management
Multicast Interface.............................. Not Configured
WLAN IPv4 ACL.................................... unconfigured
WLAN IPv6 ACL.................................... unconfigured
mDNS Status...................................... Disabled
mDNS Profile Name................................ unconfigured
DHCP Server...................................... 172.28.27.130
DHCP Address Assignment Required................. Disabled
Static IP client tunneling....................... Disabled
PMIPv6 Mobility Type............................. none
Quality of Service............................... Silver
Per-SSID Rate Limits............................. Upstream          Downstream
Average Data Rate................................   0                      0
Average Realtime Data Rate.......................   0                      0
Burst Data Rate..................................   0                      0
Burst Realtime Data Rate.........................   0                      0
Per-Client Rate Limits........................... Upstream          Downstream
Average Data Rate................................   0                      0
Average Realtime Data Rate.......................   0                      0
--More-- or (q)uit
Burst Data Rate..................................   0                      0
Burst Realtime Data Rate.........................   0                      0
Scan Defer Priority.............................. 4,5,6
Scan Defer Time.................................. 100 milliseconds
WMM.............................................. Allowed
WMM UAPSD Compliant Client Support............... Disabled
Media Stream Multicast-direct.................... Disabled
CCX - AironetIe Support.......................... Enabled
CCX - Gratuitous ProbeResponse (GPR)............. Disabled
CCX - Diagnostics Channel Capability............. Disabled
Dot11-Phone Mode (7920).......................... Disabled
Wired Protocol................................... None
Passive Client Feature........................... Disabled
Peer-to-Peer Blocking Action..................... Disabled
Radio Policy..................................... All
DTIM period for 802.11a radio.................... 1
DTIM period for 802.11b radio.................... 1
Radius Servers
   Authentication................................ Disabled
   Accounting.................................... Disabled
   Dynamic Interface............................. Disabled
   Dynamic Interface Priority.................... wlan
Local EAP Authentication......................... Disabled
--More-- or (q)uit
Security
   802.11 Authentication:........................ Open System
   FT Support.................................... Disabled
   Static WEP Keys............................... Disabled
   802.1X........................................ Disabled
   Wi-Fi Protected Access (WPA/WPA2)............. Enabled
      WPA (SSN IE)............................... Disabled
      WPA2 (RSN IE).............................. Enabled
         TKIP Cipher............................. Disabled
         AES Cipher.............................. Enabled
                                                               Auth Key Management
         802.1x.................................. Disabled
         PSK..................................... Enabled
         CCKM.................................... Disabled
         FT-1X(802.11r).......................... Disabled
         FT-PSK(802.11r)......................... Disabled
         PMF-1X(802.11w)......................... Disabled
         PMF-PSK(802.11w)........................ Disabled
      FT Reassociation Timeout................... 20
      FT Over-The-DS mode........................ Enabled
      GTK Randomization.......................... Disabled
      SKC Cache Support.......................... Disabled
--More-- or (q)uit
      CCKM TSF Tolerance......................... 1000
   WAPI.......................................... Disabled
   Wi-Fi Direct policy configured................ Disabled
   EAP-Passthrough............................... Disabled
   CKIP ......................................... Disabled
   Web Based Authentication...................... Disabled
   Web-Passthrough............................... Disabled
   Conditional Web Redirect...................... Disabled
   Splash-Page Web Redirect...................... Disabled
   Auto Anchor................................... Disabled
   FlexConnect Local Switching................... Enabled
   flexconnect Central Dhcp Flag................. Disabled
   flexconnect nat-pat Flag...................... Disabled
   flexconnect Dns Override Flag................. Disabled
   FlexConnect Vlan based Central Switching ..... Disabled
   FlexConnect Local Authentication.............. Disabled
   FlexConnect Learn IP Address.................. Enabled
   Client MFP.................................... Optional
   PMF........................................... Disabled
   PMF Association Comeback Time................. 1
   PMF SA Query RetryTimeout..................... 200
   Tkip MIC Countermeasure Hold-down Timer....... 60
AVC Visibilty.................................... Disabled
--More-- or (q)uit
AVC Profile Name................................. None
Flow Monitor Name................................ None
Call Snooping.................................... Disabled
Roamed Call Re-Anchor Policy..................... Disabled
SIP CAC Fail Send-486-Busy Policy................ Enabled
SIP CAC Fail Send Dis-Association Policy......... Disabled
KTS based CAC Policy............................. Disabled
Assisted Roaming Prediction Optimization......... Disabled
802.11k Neighbor List............................ Disabled
802.11k Neighbor List Dual Band.................. Disabled
Band Select...................................... Disabled
Load Balancing................................... Disabled
Multicast Buffer................................. Disabled
Mobility Anchor List
WLAN ID     IP Address            Status
802.11u........................................ Disabled
MSAP Services.................................. Disabled
[/code]

is the VLAN still mapped on the AP, and allowed across the trunk?
HTH,
Steve
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Centralized Auth. / Local Switching - Common SSID

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