Cisco Wireless :: Missing AP Multicast Mode IP Causing 3502i AP Radio Resets?
Jun 13, 2013
AP radio resets when the AP Multicast Mode IP is set 0.0.0.0 under the General Tab?
I rebuilt my lab controller and moved the management interface to a new subnet. Somehow, the AP Multicase Mode IP under the General Settings was removed. Afterwards, my AP's radios would reset every 2-3 minutes. After comparing my lab config to production, I noticed the IP was missing from that field. Setting the Multicast IP to 239.232.78.1 fixed the issue.
WLC 2504
AP 3502i
Code Version: 7.3.101.0
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Feb 24, 2013
Running vwlc 7.3.101 and encountered a smaller issue.When you enable / disable a SSID, all AP's reset their radio interfaces... causing everyone to drop their connection.
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Jul 10, 2011
I have a couple of 114n APs in my network and the CAPWAP uptime and AP uptime are almost the same. But there is one which always resets after some time. I have moved across to another switch port but the issue persists. I have other 1141 and 1131's on this switch and no problems. The keep alives between the AP and Controller is regular. I can't get more info from the traps as the reason code is always;
" AP associated to Controller is UP. Reason: Radio interface reset due to Init"
"AP associated to Controller is down. Reason: Radio interface reset"
"AP associated to Controller is UP. Reason: Radio interface reset"
####Only 2ice was the reason code "Operator changed 11g mode". I have seen some posts about similar problems but there hasn't been any concrete solution provided.
note that RLDP is disabled, Primary discovery timer is 120sec, and the version is 7.098
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Jan 6, 2013
I am getting many radio resets on 1252AG access point on Wism1. The warning in WLC shows as : AP's Interface:0(802.11b) Operation State Up: Base Radio MAC:c4:71:fe:5c:xxxx Cause=Reset on transmit completion. Status:NA cause = reset on transmit completion.I have fixed RRM to freeze and still same result.
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Jan 30, 2013
I've installed a Windows Server 2008 R2 Enterprise Edition with ADDS, DNS and DHCP server.Everything is configured correctly and running fine when I use an independent network.When I uninstall the DHCP on the server and connect it to my primary network with a Linux router (ClearOS) handling DHCP i get an error message on the client computer when trying to boot with PXE."PXE-E76: Bad or missing multicast discovery address".What do I need to do to make this work with my Linux router? Some port that has to be forwarded internally from the router to the WDS server?
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Apr 16, 2013
I am using WLC 5508 version 7.0 facing issue while enabling global multicast mode .
client machine stops DNS resolution after some time once we enable global multicast mode on WLC .websites are opening with IPs but not with DNS names .
DNS resolution starts working immediately after disabling multicast mode on wlc .
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Jan 23, 2013
I have one controller 2504 and some 1200 series access points.I am using 3 SSID .I want to use two ssid in HREAP mode but HREAP mode is not showinh in access point because multicast is enabled on AP mode. see the below picture
I have disabled the multicast globally from CLI. config network multicast global disabled
disabling the multicast so that i can set the access point in HREAP mode.
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Feb 24, 2013
I think I have a good handle on PIM dense mode, but some of the output.I think Im actually just overthinking this but I want to validate. When I look at the output of a 'show ip mroute' what does the bolded line. [code] From what I understand, packets that arrive at the RPF interface are flooded through all other interfaces. But what does it mean when it says 'Prune' in that bolded line? Does that mean that the router is sending a prune out of that interface?
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Aug 30, 2012
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Apr 25, 2012
i have an issue with a 2106 WLC. We have a 44xx series WLC and had an issue with Apple devices: they could not print from wireless. The workaround in the 44xx series WLC was that we have enabled Unicast in the Access Point Multicast mode (configued under Controller/General).
The issue now is that the 2106 wlc does not have unicast in AP multicast mode.
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Jun 19, 2012
A multisite network is currently supporting muticast using PIM dense mode, which is enabled on router/switch LAN and WAN interfaces across all locations. I am about to introduce Nexus switches to the main LAN. How can I make dense and sparse mode coexist to ensure flow of muticast traffic between devices supporting and dense and sparse mode? Eventually, I want to transition to the sparse mode; however, it has to be done gradually, even within a single site. The leacy equipment includes Cat 3750 and 4500s.
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Feb 22, 2013
I came across an interesting issue and thought I would see if anyone else has encountered it before contacting TAC.I have two Cisco Catalyst WS-4510R-E switches with a single Supervisor V module in each chassis. Both Sup cards are now running 12.2(54) SG1; ipbasek9 firmware; yes, I plan to move both switches to 15 code but that's another story. Anyways, prior to the upgrade the one switch was running 12.2 (33) code; I suspect the code was never upgraded; running ipbase non - K9 code. The other switch was running 12.2(44) with K9 prior to upgrade to 12.2(54).
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Apr 23, 2012
I have two Cisco Catalyst WS-4510R-E switches with a single Supervisor V module in each chassis. Both Sup cards are now running 12.2(54) SG1; ipbasek9 firmware; yes, I plan to move both switches to 15 code but that's another story. Anyways, prior to the upgrade the one switch was running 12.2 (33) code; I suspect the code was never upgraded; running ipbase non - K9 code. The other switch was running 12.2(44) with K9 prior to upgrade to 12.2(54). With the background set, one switch reports the following:SwitchA (config)#r?radius-server redundancy regexp represourc rmon route-map router.
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Dec 18, 2011
does the SG300 switches can be used with Microsoft NLB in Multicast mode?I know on traditional Catalyst switches you can statically "map" IP's to mac's and then to multiple ports but this doesn't seem to work correctly on the SG switches - it gives an error about the mac not being not Unicast?
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Apr 18, 2012
Why do we need MP-BGP (and not BGP) to exchange multicast prefixes between multicast domains?
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Feb 19, 2013
I try to pass multicast traffic between two vrf on the same 3750 switch. I have IP services IOS and sdm template routing.
here is my config:
ip routing
!
ip vrf vpn2
rd 1:1
mdt default 232.1.1.1
route-target export 1:1
route-target import 1:1
[code]....
Now I'm stuck - I don't know what to do to pass multicast traffic. Do I have any chance to run this config on 3750 chassis?Perhaps "Configuring Multicast VPN Extranet Support" document will be useful, but it concerns Catalyst 6500? [URL]
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Oct 17, 2012
I am in the process of deploying 3502i APs. This site has 2 - 5508 WLCs both running Software version 7.0.220.0 and 2 - 4402 WLCs both running the same version of software as the 5508s. All of the APs that I have installed so far have joined the controller and I can associate to them and access the network. When the APs first are connected to the switch they go through the 'normal' boot up with the LED changing colors - white, red, green, blue (not necessarily in that order). Once the AP has completed its boot sequence the LED goes out and remains NOT lit.
This is happening to most but not all of the APs. This is the first time I have deployed 3502s - previous experience is with 1142s and 1242s and the LED does not do this with them.
I can, through the CLI, turn the LED on but it is then ALWAYS blue, even if a device is NOT associated to it.
I do not want to leave them off because the account will believe they have a 'dead' AP and with them always blue they cannot properly troubleshoot using the LED.
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Nov 4, 2012
In an idle situation how much area is covered by a cisco 3502i acceccpoint , I understand there are many factor that will effect this , thats why I am adking in idle situation , I am looking for a number is square feet.
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Oct 1, 2012
Can a 3502i be downgraded to autonomous mode?
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May 10, 2012
I have a customer with several older Aironet 1121G WAP's. In one area of the plant the noise levels from several large motors is preventing reliable connection to the WAP, even though it is located in the same conference room as the users. I am suggesting upgrading the 1121G to the 3502I to take advantage of the Clean Air technology. This raises two questions:
1) Will a single 3502I be able to effectively handle the RF noise, or does it require a network of WAPs to function properly?
2) Does the 3502I require the CT2504 controller for the Clean Air to work, or will it function in a stand alone mode?
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Apr 28, 2013
how to convert a 3502 access point from Autonomous to Lightweight ? 3502 has a new IOS released back in Dec 2012 to work as staandalone mode. I need to convert this back to Lightweight mode.
I have been searching on web but have had no luck so far with anything. Tried converting it to lightweight in the same way as putting it on Autonomous IOS but errored out.
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Oct 15, 2012
When we were installing some new APs, were plugged in to ports that were not configured on the WLC management VLAN.
This is the illustration
WLC management VLAN is VLAN 80 Management VLAN of infrastructure (Switches routers) is VLAN 10
The APs were plugged in to VLAN 10 and they were not able to associate themselves with the controllers.
Through research, those APs were getting a wrong IP address,
I did the Mode button, pressed for 30 secs, but this did not fix the problem, i thought it was going to clean the flash and bring the AP back to factory default I do not believe this happened.
We also added the cisco-capwap-controller.localdomain to our DNS servers, and then I rebotted the APs and still no luck.
What fixed the issue is we had to go to the DHCP server, release the IP addresses and we found those based on the macs of the APs. What is we do not have the mac addresses?
Now that I have the DNS entry created, if I plug in an AP on the wrong VLAN port will I be able to see it?
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Jul 16, 2012
I have AP which is not connected to switch.I console it and it gives error unable to to get IP from WLC.Need to know is there any way that i can go to command prompt of this AP without getting IP from WLC? I tried control + c etc it does not go to command prompt.
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Sep 25, 2012
I have a 3502i(AP_1) that will not join a 5508 WLC(WLC_1)(code 7.2.103). The 3502i(AP_1) will join 4402 WLC(WLC_2)(Code 7.0.230). I have another 3502i(AP_2) that will join the WLC_1 & WLC_2. I am using capwap discover through DNS and hard coding the primiary WLC to AP_1 & AP_2. When I debug capwap events and errors, I see the static capwap messages and replies. Both of the WLC are on the same subnet. I have defauted the AP_1 and it joins the CISCO-CAPWAP-CONTROLLER as expected. When I change the Primiary WLC to WLC_1 it goes back to the CISCO-CAPWAP-CONTROLLER. If i change the primiary WLC to WLC_2 it joins. If I change the primiary back to WLC_1 it joins WLC_2 even though it is not a secondary. I know the previous joined WLC are stored in NVRAM, so that might be why it is doing that. I can join other ap to WLC_1 just not this one.
[code]....
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Nov 27, 2012
I am having a Wism on 6500 chassis with software code 7.2.103.0 Now......... I use to have 7.2.111.3 on the Wism before but for some reason I had to downgrade the code to an older version (some compatibility issues with the NCS)......
Now before all the APs were having 7.2.111.3 version running as soon as I downgraded the controller IOS most of them downgraded the code but a few still did not show up...... so I picked one of them and did a factory reset on the AP and was guessing that it might get the new code from the controller this way but unfortunately since than I have tried a lot of things but no luck. I have switches configured on layer 3..... other APs connected to this switch are working fine,........ when I reset the AP to factory default it doesnot take an IP obviously so I manually define the IP,,, you would find that configuration below too.... but than after a while it trys to locate the controller and could not find it.... where as, as i said other APs on teh same switch works fine......
the only thing i notice is that it does not release the IOS .. it is still having 7.2.111.3.....
using MCNG ddr static values from serial eeprom
ddr init done
Running Normal Memtest...
Passed.
IOS Bootloader - Starting system.
[Code].....
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Jan 17, 2013
This problem only seems to affect one of our sites. Every once in a while, several APs would lose link to the 5508 and get stranded. The only way to fix the issue is either to power cycle, or better yet SSH into the APs and use the command "capwap ap controller ip address x.x.x.x", and then they'd automatically rejoin the controller. At first, I thought network hiccups caused the APs to lose connectivity, but there's none that I could find. I have the primary/secondary controller IPs configured in them as well. See log below:
[previous log entries show AP working as intended, then...]
*Jan 18 05:29:29.632: %CAPWAP-3-ERRORLOG: Retransmission count for packet exceeded max(CAPWAP_ECHO_REQUEST
., 1)
*Jan 18 05:29:29.632: %LWAPP-3-CLIENTEVENTLOG: Switching to Standalone mode
*Jan 18 05:29:29.645: %CAPWAP-3-ERRORLOG: GOING BACK TO DISCOVER MODE
*Jan 18 05:29:29.645: %DTLS-5-SEND_ALERT: Send FATAL : Close notify Alert to [ommitted due to security reason]:5246
*Jan 18 05:29:29.704: %WIDS-6-DISABLED: IDS Signature is removed and disabled.
[code]....
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Jul 18, 2012
The ap 3502i has been registered to the wireless controller, but now want to restore the factory settings, repeated after the upgrade or will appear before the registration information of the wireless controller,
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Dec 4, 2012
We have a 2504 WLC and 8 352l AP. All AP are working and can be seen in the WLC except 1. It can grab an ip address but cannot see on the WLC. the show AP join...only shows that it is trying to join but no error indicated. A debug cap swap events didn't show the ip add.
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Dec 15, 2012
My 3502i suddently shutdown it's Radio interface and when I connect to it, I cans ee that the interface is shutdown. So tryign to enable it but the "configure terminal" command is not available. Is there any hidden command to go the priveledge mode?
______________
interface Dot11Radio0
no ip route-cache
shutdown
antenna gain 0
beamform ofdm
mbssid(code)
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Nov 15, 2011
How to upgrade C3502i to Lightweight? I failed to upgrade using Upgrade tool v3.4. The error message is "AP model is not supported" . how can I upgrade it?
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Mar 2, 2013
I have a WLC2106 and AP3502i. The issue that I am having is the radio for 5GHz is not showing up in "Wireless > 802.11a/n" (see attached screenshot) I am not exactly sure what was the problem. When I went to 802.11b/g/n I do see an entry for 2.4Ghz radio, but nothing on 5GHz.
I have the AP plugged directly to my 3550POE, and when I used the command "show power inline" it says that the switch is providing 15.4W and there is still 345W remaining on the switch. The LED on the AP is solid green. I issued a no shutdown on dot11radio1 and the status is up/up, but there is still no entry under "Wireless > 802.11a/n"
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Mar 7, 2013
how can i upgrade to Mini IOS Version 7.3.1.73 on the AIR-CAP 3502I. we some that have Mini IOS Version 7.3.1.73 and some that have Mini IOS Version 7.0.112.74. want them all the same.
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May 14, 2012
I have a newly purchased Aironet 3502i that I would like to configure on my network. I am new to Cisco networking in general, and would like to know how to configure the device to operate without a WLAN Controller.
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