8.2MR6 Interim Release Availability

[rutvshah]

Release 8.2.154.17 Interim (8.2MR6)

We are pleased to announce Interim Release for 8.2MR6.

Please Register at below link to participate. 

http://cs.co/82MR6Interim

Once Requested for the Access on above link, Permission will be provided to download the Code from below link: 

Please select filter as 82MR6Interim

https://upload.cisco.com/cgi-bin/swc/fileexg/main.cgi?CONTYPES=wng-escalation

8.2.154.17

Resolved Caveats

Identifier	Headline
CSCvd36259	ME Controller intermittently Flaps with external AP.
CSCvd23175	2800/3800 WCPD memory leak observed
CSCvd60899	client de-authentication not working from cli and web
CSCvd61701	SSH to Standby RMI or Service port Fails
CSCvd70755	AIR-AP3802I crash due to kernel panic
CSCvb93124	WLC stopped working on spamApTask5
CSCvc82845	WLC returns nothing for SNMP get WEB ACL - cldcClientAaaOverrideAclName
CSCvd44446	EAP Response Dropped as a duplicate while First EAP Response was not even received on AP
CSCva52938	2800/3800 AP reporting incorrect CDP info to the Switch
CSCva58093	AP 3802 -N broadcasting incorrect Country Code in beacon and Probe Response
CSCvd88630	AP 3800: Ap crash due to 'wcpd' in 8.4
CSCvb11778	8.1.131.18 WLC crash on sisfSwitcherTask
CSCvd79745	Clients fail to pass auth when using L2 and Web-Auth on MAC failure on same WLAN
CSCvd86274	1800/2800/3800 Series AP does not send the Platform value via CDP when it is brand new
CSCvb93189	AP drops Retransmitted M3 from WLC
CSCvc62277	5520 crashes on running rrm commands on task emWeb
CSCvc74507	Fix incorrect commit of CSCuu59589 in 8.0-mr
CSCvd18773	8.2 clients unable to authenticate 'Sending assoc-resp with status 12 station'
CSCvb29996	1810W Hardware Watchdog reset crash PC=0xc03b3ffc, LR=0xc008af24, QCA 02698633
CSCvc08052	DFS false detection on AP2700
CSCvd98548	Kernel panic inside ForwardFrame function!
CSCvd91770	Trust-DSCP-Upstream broken on 8.2.151.0
CSCvc74876	8.2.145.21: AP2800/3800 CAPWAP disconnect then stuck in discovery loop
CSCvd98163	2800/3800 2.4Ghz TRPCID table update
CSCvd97103	IPv4 CPU ACL - IP-Address with netmask other than 255.255.255.255 doesn't work
CSCvd14806	APs randomly not showing any neighbors on both radios
CSCvc67005	2802 AP drops client ARP packets after web authentication
CSCvc65568	8821 fails 11r FT roam with "Invalid FTIE MIC"
CSCuz19004	Radio Resets on 702w
CSCva95121	Stale IP route left on Flex AP config if booting up in standalone mode
CSCvb61023	DHCP Option 82(remote-id) not present is some AP
CSCvc48624	Incorrect info of "show mesh convergence subset-channels detail milos"
CSCvc87433	Webauth with proxy does not work after 8.2
CSCvc49263	RLAN-VLAN mapping misconfigured after moving to secondary
CSCvd29564	Layer 2 Packet Drop Of CDP Packets for COS APs
CSCvb48354	RRM Not updating as per configured on WLC
CSCvc15976	Trustsec: AP: Not able to enable/disable AP inline tagging and SGACL Enforcement via SNMP
CSCvc28168	WLC set ZERO 802.11e QoS UP for part of the downstream voice packets and APs trust it
CSCvc75113	MIB compile error on CISCO-LWAPP-TUNNEL-MIB.my version 8.2
CSCvc12703	1810W LAN Port 2 maps to wrong VLAN on N+1 failover to Primary
CSCvd39346	WCPD slow memory leak
CSCvd63720	AP 3800: AP crash due to string HashMap_Arena
CSCvd78495	Failed to get ARP entry due to Aquantia PHY driver not loaded
CSCvb91652	WLC sluggishness due to flooding probe, need probe throttling configs
CSCvd30952	RM3010L-B-K9 Hyperlocation Module stopped working
CSCvc00328	with 3800 Surface pro gives less throughput
CSCvc04089	2700 series AP radio resets reason code 71 RADIO_RC_NO_REPORT
CSCvc81168	AP2702 unable to upgrade and failing with error: Unable to create temp dir "flash:/update"
CSCvd00289	2800/3800 capwapd init unsuccessful creating 2 capwapd causing WCPD watchdogd reset
CSCvd25231	Collect Stack info for silent reboot of 2800/3800
CSCvd33219	AP 3800: FW hang detected - chatter: wl1: fwHangDetect(357): FTR!
CSCvd58664	AP dropping EAP packets on Radio which is seen on Wired uplink
CSCvd61977	2800/3800 -radio coredump generation may stuck ca_status leading to IPC call function failures
CSCvd72664	1850 AP sometimes tags 802.1q vlan for native WLAN, causing ARP packet drop
CSCvd49909	COS AP - Kernel panic @ ClientCapabilitiesTracker virtual address invalid

[Leo Laohoo]

If you want to upgrade to 8.3MR2, raise a TAC Case and request for the 8.3MR2 Escalation Image (or later).  

Kindly refer to CSCve20123.

TAC Recommended AireOS Builds

[Oscar Olsson]

Bug hunting for a rare and elusive bug wanted from others reading this thread!

So, the reason why we tried this interim build in the first place is to identify or fix a seemingly rare and elusive bug with certain AP's. Since it's difficult to find an AP that currently experiences this issue (unreproducable so far) and also to gather enough data to get it identified, I figured that I'd ask here if anyone has seen the same thing and if you have seen it, how the identification and fix is progressing..

Symptoms of the bug:

A specific AP is seemingly up, broadcasting SSID's and everything, but in practice, it doesn't allow clients to associate. The effect seen on the client is that when it tries to roam or associate to the affected AP, the client gets disconnected. If you try to associate again (either automatically or manually) from the client, the client is seen as misbehaving and is excluded if you have that feature enabled on the SSID that the client is trying to associate to. This essentially creates a coverage black hole, and depending on your exclusion rules, the client isn't able to associate again anywhere until the exclusion timer expires.

What we've found so far:

We've been running a case with the TAC, and we've found out so far that the failure is in the EAPOL M2 phase, where the client either doesn't receive the handshake, or the AP doesn't see it. However, we were mistakenly advised to reboot the AP prematurely, so we haven't been able to collect the required packets from the client handshake yet, as we haven't found any other faulty AP to test this with at this time.

So, if this sounds very familiar, check to see if this is indeed what you're experiencing too. If it truly is exactly this issue, do share what you know and how your troubleshooting/bug filing is progressing so we can get the devs to fix this. :)

Ps. It COULD be this issue, but the bugid CSCvc06325 was terminated due to that it was unreproducable. However, the invalid staid bug has been fixed, but it might just be correlation and not causation. :) See this thread for additional info: https://supportforums.cisco.com/discussion/13292651/air-ap2802i-clients-connection-failure-related-invalid-staid-log

[patoberli]

I assume you only ask users with 2802i?

I had that once with the 3502i, but in that case the AP was broken in the end.

[Oscar Olsson]

Yup, but I think 2800 and 3800 are almost the same type of platform, so it's mainly those AP's that are of interest.

This error is cleared by a reboot of the AP. So if it persists after a reboot, it's not the same issue. :)

[#6]

Hi,

We did a sniffer trace and got this analysis from TAC:

Wireless sniffers show that AP never sent the EAP identity requests forwarded by the controller, therefore client didn’t have a chance to start the EAPOL exchange and got disassociated, this happened during all attempts to association to that AP.

This misbehaviour can be traced back to the impact of below bug:

CSCvd58664 AP dropping EAP packets on Radio which is seen on Wired uplink

[patoberli]

8.2.160.0 released: http://www.cisco.com/c/en/us/td/docs/wireless/controller/release/notes/crn82mr6.html

[ivanchakarov]

Unfortunately CSCvb44979 is still present in 8.2.160.0 even that it is stated that it is fixed. The command “config local-auth cipher-option 3des-rc4 enable” still has to be used to work around it.