Cisco Wireless :: 1240G Slow сlient Roaming When HREAP Used
Feb 23, 2012
We have standart wireless deployment with 24 APs (1240G model) and wireless controller 4402-25 placed on same site.Most of clients (WMS RF terminals ) works with one WLAN (WPA2-PSK) and constantly roam over warehouse , and that works great.
But for better survivability(when controller dies) we are trying to configure HREAP on our APs with local swicthed local auth WLAN. And that also work , but client roaming occur much more slowly and RDP connection to WMS APP server sometimes stuck for 2-5 sec.Disabling "local switching" checkbox for WLAN make roaming almost momental.
And slow roaming are price for controllerless HREAP design ? And for fast roaming and survivability we must use N+1 wlc?
I have a Cisco 5508 setup at a host site with 3 other sites connected using hreap on 1252APs. When doing testing of network speed I find that the throughput from the wireless to wired network is at about 18mbps yet the same test on wired side is 85-100mbps and wireless to wireless is 18mbps
I have studied many guides but I can't find out if there is a down-side to setting the timeout this high.Could it result in slow roaming or re-authentication if there is a connection error? The customer have large areas with high client density and some outdoor areas with low client density.
I have a wireless network with two WLC 5508 controllers and 220 LWAPs in the same location as the controllers. All APs are currently in local mode. I run a few guest networks as well as some other client networks. One client in particular uses their network to connect mobile machines to their VLAN. The only issue is that the machines do not have wireless adapters. Instead, the manufacturer put inside the chassis, a D-Link WGB, which has an ethernet cable, you then have to plug into the ethernet port. These devices cannot seem to connect to the network. I have found, the WGBs do associate on the network, but the wired client behind it cannot pass traffic onto the VLAN. I have also tried connecting PCs with different SOHO style WGBs from different manufacturers with the same result.
After going through Cisco's documentation, I found that using 1230s in WGB mode can resolve this issue since they use IAPP to communicate the MAC table of the wired side clients they service back to the controller. I have configured a 1230, and used it as the WGB for the client machine instead of the D-Link and it does seem to work, but this would mean configuring a considerable number of 1230s to hand over to the client.
The first question would be, Is there something I am missing that I would need to do in order to allow SOHO style WGBs to forward wired side client traffic onto the network while LWAPs are in local mode? Or would the WGB NEED to support IAPP?
The second question is that, I may have found another solution to this already, but would like some input prior to committing.
This client also uses these same machines with the same WGBs inside the chassis at another location where the client operates the network themselves. They also use the same WLC model with the same version, and same APs. The only difference is that they use H-REAP mode with local switching.
I also tested this idea, and it seemed to work. With the AP in H-REAP mode, and the client's WLAN set to local switching, the machine and WGB connected with no problem.
So the question with this, would be; would there be any disadvantages in running all 220 APs at this location in H-REAP mode? What would I be losing if anything? Also, I would like to keep all other WLANs centrally switched.
I understand what the difference would be for this client's WLAN if I ran in H-REAP mode with local switching, but what would the difference be in the other guest WLANs if I set them to be centrally switched? (Is there any difference between running APs in local mode vs running APs in H-REAP with central switching?)
How many AP in h-reap mode recommend with WAN link 512k ?,i have read in document it show h-reap mode must requirement minimum link is 128k for connect to wlc but i don't know this requirement for 1 ap or all ap to connect across WAN to register and send traffic across WAN. Because now i have 2 site HQ -> Branch (link 512k) it can use for this solution.
I have quick question about wlc software version upgrade : currect version of 5500 WLC : 7.0.220.0,However i am planning to upgrade to version 7.2.110.0,currectly all remote site AP's are connected to this WLC , nearly 150 AP's all are in H-reap mode however once i upgrade to 7.2.110.0 version , all default should come into Flexconnect mode.Do i need to make any configuration or any changes in AP's to get Flexconnect mode or will it be default mode as Flexconnect mode in new version of WLC ?
I have been having an issue with random AP3602I's in HREAP mode disassociating from the 5508 controller. These AP's are in remote offices with 70Mb WAN back to the controller. Randomly one or two AP's disassociate from the controller and I have to bounce the switchport to bring them back online. The WLC is running 7.2. Again this only occurs to one or two AP's not all of the AP's.
I have a tale of woe for you who may be considering Hybrid REAP with local switching.
My client has a varied configuration, but the requirements basically screamed HREAP with local switching. They have 15 sites, had already purchased a single WLC 4404 and they needed between 4 and 24 APs at each of the sites. Each of these locations are connected by a WAN link of good quality, but only a single link so there is no assurance of availability; the client has local resources so it would be useful if wireless stayed working during an outage.
So I setup the WLC for HREAP local switching. I setup AP Groups VLANs, but I noticed it had no effect on the VLAN allocation for HREAP. This was unfortunate, because not every site has the same VLAN configuration - some sites had a L3 switch and others only a L2 switch. But I suffered through this and configured each AP manually with the appropriate VLAN mappings.
The infuriating thing, is now that they have bought a second WLC 4404 (they expect to increase the number of APs beyond 100) all these VLAN mappings are messed up when APs connect to the second WLC. I've been going through them one by one again - it is really unfortunate that the AP Groups VLAN mappings don't apply to HREAP local switching.
I'm going to get back to the next 80 APs - but if some of you have a system for handling the VLAN mappings of a large number of APs.
I'm configuring AP in Hreap mode. Objective for me is th have a "plug & play" installation method for HREAP. I configure on HREAP AP, Native VLAN set to 1 and the WLAN and Vlan mapping for the current wlan is set to 1 too. WLC version is 7.0.230.0 and AP version is 12.4(23c)JA4
on my cisco switch (WS-C3560-24PS with 12.2(55)SE1), the port configuration is as below: switchport trunk encapsulation dot1q switchport trunk native vlan 45 switchport trunk allowed vlan 45,74 switchport mode trunk no logging event link-status no logging event power-inline-status no snmp trap link-status spanning-tree portfast trunk spanning-tree bpduguard enable
AP receives a DHCP IP in Vlan 45 and users connected in vlan 45 too. I would like to undestand why the AP is working properly because normally vlan 1 is not configured as allowed vlan on my switch and the native vlan is dedicated only to untagged ethernet packet.
I have one cisco wlc 2112 with ios 7.0.230.0 with license to support 12 access points. My access points are nine (9) lap1231ag and one (1) lap1310.I just have one wlan (ssid). My scenario of deployment is in layer 3. I have one interface management and ap manager in the WLC. All my Access Points have differents ip address that WLC. I need to configure a unique ssid to associate my six (6) dynamics interfaces (each dymanic interface with different vlan subnet).Each wlan profile (ssid) should have the same security in phase 2 (wpa2/psk). My cisco access points don't support hreap. My wlc support only (4) interface into an interface group, and i need six (6) dynamics interfaces.
I have a T1 connection to one of my sites, I am running HREAP with 4 AP's. I have been noticing a spike in traffic from my AP's to the WLC. Even when no one is on the wireless. When you use encryption (DTLS) should this cause spikes on the T1 ?
I have a new deployment of 44 3502i AP's in 3 buildings at one of my campus'.The 5508 wlc is running latest 7.0.116.0 code.I have some users who take their work with them as they go from location to location on this campus.They need to be able to smoothly switch from AP to AP without having to reauthenticate each time the next AP takes over in the handoff.On the ssid in question we run 802.1x back to 1 auth server; there is no failover auth server.All APs are in one AP Group.My thought is to add all 44 of the APs to one HREAP Group.
Main Site: WLC AIR-CT5508-50-K9 WCS 6.x for 50 APs (32 ) AP 1140
02 Remote Sites : 03 AP 1140 using H-REAP
Now, my company is considering to implement a wIPS solution, so i planned to install in the Main Site a MSE3300 and (01) AP 3500e as a wIPS AP Monitor in the remote sites,
Need to confirm:
A) Can an AP3500 work with HREAP and as wIPS monitor AP at the same time? or in other words, if it is possible to have an AP wIPS monitor far away from the WLC (over the WAN)?
B) What are the requirements of WAN link if I want to install a Centralized MSE 330 Engine,which perform the wIPS solution in all the network.
I have 5 access points (WAP4410N) all connected to a befsr41 8 port/switch router, each AP has it's own SSID. Is it possible to to have one SSID for the entire wireless network so users do not have to change SSID's every time they change locations?
I have two sites.Main site (local) has two Vlans: Vlan1 and Vlan2. Each has its own IP address range.VLAN 1 is the default Vlan and is used for CORPorate traffic. IP range 10.33.4.*VLAN 2 is for guest access to the internet IP range 10.10.10.*I have a WLC4402 on the this site with 2 WLANs: CORP on Vlan1 and GUEST on Vlan2.
Branch site (remote) which has 2 Vlans: Vlan1 and Vlan2. Each has its own IP address range.VLAN 1 is the default Vlan and is used for CORPorate traffic. IP range 10.125.15.*VLAN 2 is for guest access to the internet IP range 10.10.11.*I have an 1141 on this site using HREAP.
Locally, if you connect to CORP, you get a CORP ip address and access to CORP network. If you connect to GUEST, you get a guest ip address and guest access to the guest network. Simple so far....
Remotely, if you connect to CORP, you get a CORP ip address 10.125.15.x and access to CORP network (great). If you connect to GUEST, you get a CORP ip address 10.125.15.x and access to CORP network (not great). This is with the HREAP native vlan ID for the access point set to 2 on the controller.If I set the native vlan ID to 1 on the controller, I can not get an IP address at all.If I do not set the native vlan ID on the controller, I can not get an IP address at all.
I have an issue where I have an AP in one room and another in another.When I walk from one room to the other, I lose signal but manages to see the SSID and join.But, I cannot seem to surf the Internet, I have to manually disconnect and reconnect. Normal wireless routers I reconnect seamlessly without any manual disconnect & reconnect.Currently using cisco 5508 and ap2600.
I currently have a UC540 system with 12x aironet 1130 APs. Seamless roaming does not seem to work, and the recommendation seems to be to introduce a WLAN controller.
I´m trying to find the best configuration to improve the roaming in a WLC 7.3I changed the power threshold under the TPC to -67 and in the client roaming I put in custom mode and the minimun RSSI in -78 dBm.but I was wondering if there is a specific configuration to improve the roaming.
Currently have a 5508 in the lab and testing 4 AP's with it. Eventually there will be 18 AP's spread thru out different floor in our building.
So far access is working fine using WPA, 802.1x and the client configured to use windows logon credentials..But it doesn't seem to automatically transfer between access points.
I have 3 Cisco 1242 WAPs that I have deployed at a site that has NO RADIUS/AAA devices. I have given all of them a different channel (1,6,11), but the same SSID and crypto (WPA2-PSK). The issue is when a machine boots up it associates with the closest/strongest AP, but as the device "roams" it does not which to a different AP. It stays associated with the original AP until that signal is gone. Then it quickly associates with the closest AP with no problem.
How do I get the device to associate with the strongest WAP? I have research "fast roaming and WDS" but it seems like you need EAP/LEAP and they do NOT have that at all.
have configured Cisco IPPhone 7925G with EAP-TLS setting. (With manufacture installed and Userinstalled certificate). My issue is while roaming from 1 AccessPoint to another AccessPoint the call getting droped. I need to restart the IPPhone to reauthentiate again. In ACS am agging the authentication time-out error. (I had changed the time out value for EAP-TLS to 20 in WLC as per recommendation.)
If am using static web key there is no issue in roaming.
What is the reommended setting inorder for the EAP-TLS to work properly.
Is it possible to set up a roaming wireless network with wireless access points that are different brands from one another (i.e., D-Link, Cisco, Belkin, etc.)? If so, is there anything special that needs to be configured?
But my laptop often times changes access points as I move about in my office to try to optimize the signal strength, which causes the network to stop working and I had to do "ipconfig -renew" to continue using internet. Problem now is that the IT desk told me that the AP's are overloaded.
Trying to implement HREAP over WAN between main and remote site. The WLC4402 is on main site. There will be a secondary DHCP at the remote site. Does the switch at the remote site any preparation?
I am having some troubles with client roaming on a 5508 controller running firmware 7.3.101.0. As soon as a client roams outside the range of an AP they lose data flow and do not seem to transition to another AP for about 1 minute.This is a small network with 6 x AIRCAP3502E-N-K9 AP's (running in H-REAP mode) on the same floor and clients are a mix of HP notebooks, Mac Books, iMacs, iPads and iPhones. There are several seperate SSID's setup and the problem occurs on all. All are WPA2/AES with either a PSK or 802.1X. Both 2.4GHz and 5GHz radios are enabled with auto power and channel selection.
I have tried changing the roaming settings from default and also playing with the AP power settings to no avail.Is this normal behaviour or is there something I can do to improve the reconnection speed?
Under the section intra controller roaming, WLC 7.0 config guide states that " When the wireless client moves its association from one access point to another, the controller simply updates the client database with the newly associated access point. If necessary, new security context and associations are established as well" URL.Within the phrase "If necessary, new security context and associations are established as well" . What is meant by the new security context ? My understanding is that only an update to the MSCB (with the AP info) is the only requirement as the client is within the same controller and subnet.I just can't think why would the security info needs to be updated.
Actually we have a 4402 controller with 1120 APs both of which are marked as EoL products, we want to jump over the new 2600 APs and 5508 Controller for increase signal coverage but we have the following deals:Last firmware for 4402 controller is 7.0.Firmware needed for 5508 to support 2600 APs is 7.3.Is it possible to configure mobility between 4402 and 5508 even with different firmware branch?
I have two 5508, no anchor, only one SSID with internal web authentication using radius server.Under "Configuring Mobility Groups", Cisco guide says: "If a client roams in web authentication state, the client is considered as a new client on another controller instead of considering it as a mobile client".
I understand that if a client that has already autheticated via web roams between two LAPs that are associated with different WLCs, it has to reathenticate.
I'm looking to deploy a 2504 controller and some AP1142s but would like to provide the client with an alternative, lower initial-cost option in my proposal. I've been researching the AP541N access points but several areas of their implementation seem unclear to me.
Clustering: For the clustering feature is it necessary for the network to have other SBCS components (500 series platforms)? All of their other features are either unapplicable to or already implemented in the network in question; if I have to add another appliance I would rather go the LWAPP route and use a true WLC.
What are the cababilities of clustering? Can I implement some form of wireless resilience by spacing APs closer together than necessary and they will lower transmit dBm and intelligently respond to attempt to cover a new cell where an AP has gone down?
What about roaming? I believe Cisco advertises this as part of a small business voice solution. A client roaming between two access points in the same mobility group (cluster?) on a wireless voip phone should be able to keep connection, as it's analogus to some critical UDP communications that are going to take place on the clients.
I am running a WiFi network built on Cisco 1262 APs and Cisco WLC 5508. My APs broadcast two SSIDs, let call them "WiFi_Pay" and "WiFi_Free". I have a problem: when users migrate from "WiFi_Pay" to "WiFi_Free" (not moving, connecting to the same AP), the connection fails. If they try for second time, it is always successful. My task is to ensure that such migrations run smoothly and be successful from the first attempt.
my hardware set-up : 2x AP 1100 series, 2x AP1131AG (not connected to a Cisco Switch)...all with the latest Cisco iOS
What i want to do is connect these APs and broadcast the same SSID (e.g Aironet and NOT Aironet1,Aironet2..etc). Doing that, a user with a laptop can roam between these APs and won't have to re-enter the password of the SSID every time he changes AP. I would also like the encryption to be with a 128bit password key. From what i have read, i need a local authenticator to do what (Something called Local Radius Server).
I have three Autonomous AP´s in a small office running voice applications, all of them are connected to the same infrastructure switch and they have same configuration, voice Vlan is configure to open authentication. I have two models of AP 1252 and 1262 and I paste Radio configuration below.
First issue: During calls users are facing problems when roaming between AP´s, and eventually calls are dropped. Second issue: Sometimes one of these AP´s(1252) lose all transmit signal and when return I got authentication error on log.
