WLC 5508 and IPv6 strange problem

Hi All,
I recently migrated APs from a 4400 to 5508 which had the 7.4 code and encountered an issue that I haven't
see before, in short the APs would never join the 5508 even when the selction rules said it should.
The AP would get a discovery response from both controllers and even though the 4400 had 98 APs attached
and the 5508 just 1 and a factory reset was made on the AP, it would always join the 4400.
A packet capture showed that the first CAPWAP address from the 5508 was always an IPv6 whilst the 4400
always sent IPv4 CAPWAP control adressess, disabling the global IPv6 option on the 5508 ensured that the the first CAPWAP control
address was now an IPv4 and the AP then happily joined the controller, IPv6 addresses were still showing up in the discovery responses
but since it was no longer the first one in the packet the AP didn't mind.
Anyone else seen this kind of behaviour before ?

That is weird because I have done many remotely with console access also. The image takes 35-40 minutes to complete so if you reboot the WLC within that time period, the FUS didn't complete. It will seem like the WLC is down, but it truly is until it completes.
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    *DHCP Socket Task: Apr 30 11:44:51.649: a4:c3:61:7a:1a:4f DHCP   chaddr: a4:c3:61:7a:1a:4f
    *DHCP Socket Task: Apr 30 11:44:51.649: a4:c3:61:7a:1a:4f DHCP   ciaddr: 0.0.0.0,  yiaddr: 0.0.0.0
    *DHCP Socket Task: Apr 30 11:44:51.649: a4:c3:61:7a:1a:4f DHCP   siaddr: 0.0.0.0,  giaddr: 172.24.16.251
    *DHCP Socket Task: Apr 30 11:44:51.649: a4:c3:61:7a:1a:4f DHCP selecting relay 2 - control block settings:
                            dhcpServer: 172.24.13.251, dhcpNetmask: 0.0.0.0,
                            dhcpGateway: 0.0.0.0, dhcpRelay: 172.24.16.251  VLAN: 93
    *DHCP Socket Task: Apr 30 11:44:51.649: a4:c3:61:7a:1a:4f DHCP selected relay 2 - NONE
    *DHCP Proxy Task: Apr 30 11:44:51.649: a4:c3:61:7a:1a:4f DHCP received op BOOTREPLY (2) (len 572,vlan 0, port 0, encap 0x0)
    *DHCP Proxy Task: Apr 30 11:44:51.649: a4:c3:61:7a:1a:4f DHCP sending packet in EoIP tunnel to foreign 10.65.31.8 (len 346)
    *DHCP Proxy Task: Apr 30 11:44:51.649: a4:c3:61:7a:1a:4f DHCP transmitting DHCP OFFER (2)
    *DHCP Proxy Task: Apr 30 11:44:51.649: a4:c3:61:7a:1a:4f DHCP   op: BOOTREPLY, htype: Ethernet, hlen: 6, hops: 0
    *DHCP Proxy Task: Apr 30 11:44:51.650: a4:c3:61:7a:1a:4f DHCP   xid: 0x7e549f4a (2119475018), secs: 0, flags: 0
    *DHCP Proxy Task: Apr 30 11:44:51.650: a4:c3:61:7a:1a:4f DHCP   chaddr: a4:c3:61:7a:1a:4f
    *DHCP Proxy Task: Apr 30 11:44:51.650: a4:c3:61:7a:1a:4f DHCP   ciaddr: 0.0.0.0,  yiaddr: 172.24.16.102
    *DHCP Proxy Task: Apr 30 11:44:51.650: a4:c3:61:7a:1a:4f DHCP   siaddr: 0.0.0.0,  giaddr: 0.0.0.0
    *DHCP Proxy Task: Apr 30 11:44:51.650: a4:c3:61:7a:1a:4f DHCP   server id: 0.0.0.0  rcvd server id: 172.24.13.251
    *DHCP Socket Task: Apr 30 11:44:53.754: a4:c3:61:7a:1a:4f DHCP received op BOOTREQUEST (1) (len 308,vlan 92, port 13, encap 0xec05)
    *DHCP Socket Task: Apr 30 11:44:53.755: a4:c3:61:7a:1a:4f DHCP selecting relay 1 - control block settings:
                            dhcpServer: 172.24.13.251, dhcpNetmask: 0.0.0.0,
                            dhcpGateway: 0.0.0.0, dhcpRelay: 172.24.16.251  VLAN: 93
    *DHCP Socket Task: Apr 30 11:44:53.755: a4:c3:61:7a:1a:4f DHCP selected relay 1 - 172.24.13.251 (local address 172.24.16.251, gateway 172.24.16.254, VLAN 93, port 13)
    *DHCP Socket Task: Apr 30 11:44:53.755: a4:c3:61:7a:1a:4f DHCP transmitting DHCP DISCOVER (1)
    *DHCP Socket Task: Apr 30 11:44:53.755: a4:c3:61:7a:1a:4f DHCP   op: BOOTREQUEST, htype: Ethernet, hlen: 6, hops: 1
    *DHCP Socket Task: Apr 30 11:44:53.755: a4:c3:61:7a:1a:4f DHCP   xid: 0x7e549f4a (2119475018), secs: 3, flags: 0
    *DHCP Socket Task: Apr 30 11:44:53.755: a4:c3:61:7a:1a:4f DHCP   chaddr: a4:c3:61:7a:1a:4f
    *DHCP Socket Task: Apr 30 11:44:53.755: a4:c3:61:7a:1a:4f DHCP   ciaddr: 0.0.0.0,  yiaddr: 0.0.0.0
    *DHCP Socket Task: Apr 30 11:44:53.755: a4:c3:61:7a:1a:4f DHCP   siaddr: 0.0.0.0,  giaddr: 172.24.16.251
    *DHCP Socket Task: Apr 30 11:44:53.755: a4:c3:61:7a:1a:4f DHCP selecting relay 2 - control block settings:
                            dhcpServer: 172.24.13.251, dhcpNetmask: 0.0.0.0,
                            dhcpGateway: 0.0.0.0, dhcpRelay: 172.24.16.251  VLAN: 93
    *DHCP Socket Task: Apr 30 11:44:53.755: a4:c3:61:7a:1a:4f DHCP selected relay 2 - NONE
    *DHCP Proxy Task: Apr 30 11:44:53.755: a4:c3:61:7a:1a:4f DHCP received op BOOTREPLY (2) (len 572,vlan 0, port 0, encap 0x0)
    *DHCP Proxy Task: Apr 30 11:44:53.755: a4:c3:61:7a:1a:4f DHCP sending packet in EoIP tunnel to foreign 10.65.31.8 (len 346)
    *DHCP Proxy Task: Apr 30 11:44:53.755: a4:c3:61:7a:1a:4f DHCP transmitting DHCP OFFER (2)
    *DHCP Proxy Task: Apr 30 11:44:53.755: a4:c3:61:7a:1a:4f DHCP   op: BOOTREPLY, htype: Ethernet, hlen: 6, hops: 0
    *DHCP Proxy Task: Apr 30 11:44:53.755: a4:c3:61:7a:1a:4f DHCP   xid: 0x7e549f4a (2119475018), secs: 0, flags: 0
    *DHCP Proxy Task: Apr 30 11:44:53.755: a4:c3:61:7a:1a:4f DHCP   chaddr: a4:c3:61:7a:1a:4f
    *DHCP Proxy Task: Apr 30 11:44:53.755: a4:c3:61:7a:1a:4f DHCP   ciaddr: 0.0.0.0,  yiaddr: 172.24.16.102
    *DHCP Proxy Task: Apr 30 11:44:53.755: a4:c3:61:7a:1a:4f DHCP   siaddr: 0.0.0.0,  giaddr: 0.0.0.0
    *DHCP Proxy Task: Apr 30 11:44:53.755: a4:c3:61:7a:1a:4f DHCP   server id: 0.0.0.0  rcvd server id: 172.24.13.251
    *DHCP Socket Task: Apr 30 11:44:58.594: a4:c3:61:7a:1a:4f DHCP received op BOOTREQUEST (1) (len 308,vlan 92, port 13, encap 0xec05)
    *DHCP Socket Task: Apr 30 11:44:58.594: a4:c3:61:7a:1a:4f DHCP selecting relay 1 - control block settings:
                            dhcpServer: 172.24.13.251, dhcpNetmask: 0.0.0.0,
                            dhcpGateway: 0.0.0.0, dhcpRelay: 172.24.16.251  VLAN: 93
    *DHCP Socket Task: Apr 30 11:44:58.594: a4:c3:61:7a:1a:4f DHCP selected relay 1 - 172.24.13.251 (local address 172.24.16.251, gateway 172.24.16.254, VLAN 93, port 13)
    *DHCP Socket Task: Apr 30 11:44:58.594: a4:c3:61:7a:1a:4f DHCP transmitting DHCP DISCOVER (1)
    *DHCP Socket Task: Apr 30 11:44:58.594: a4:c3:61:7a:1a:4f DHCP   op: BOOTREQUEST, htype: Ethernet, hlen: 6, hops: 1
    *DHCP Socket Task: Apr 30 11:44:58.594: a4:c3:61:7a:1a:4f DHCP   xid: 0x7e549f4a (2119475018), secs: 8, flags: 0
    *DHCP Socket Task: Apr 30 11:44:58.594: a4:c3:61:7a:1a:4f DHCP   chaddr: a4:c3:61:7a:1a:4f
    *DHCP Socket Task: Apr 30 11:44:58.594: a4:c3:61:7a:1a:4f DHCP   ciaddr: 0.0.0.0,  yiaddr: 0.0.0.0
    *DHCP Socket Task: Apr 30 11:44:58.594: a4:c3:61:7a:1a:4f DHCP   siaddr: 0.0.0.0,  giaddr: 172.24.16.251
    *DHCP Socket Task: Apr 30 11:44:58.595: a4:c3:61:7a:1a:4f DHCP selecting relay 2 - control block settings:
                            dhcpServer: 172.24.13.251, dhcpNetmask: 0.0.0.0,
                            dhcpGateway: 0.0.0.0, dhcpRelay: 172.24.16.251  VLAN: 93
    *DHCP Socket Task: Apr 30 11:44:58.595: a4:c3:61:7a:1a:4f DHCP selected relay 2 - NONE
    *DHCP Proxy Task: Apr 30 11:44:58.595: a4:c3:61:7a:1a:4f DHCP received op BOOTREPLY (2) (len 572,vlan 0, port 0, encap 0x0)
    *DHCP Proxy Task: Apr 30 11:44:58.595: a4:c3:61:7a:1a:4f DHCP sending packet in EoIP tunnel to foreign 10.65.31.8 (len 346)
    *DHCP Proxy Task: Apr 30 11:44:58.595: a4:c3:61:7a:1a:4f DHCP transmitting DHCP OFFER (2)
    *DHCP Proxy Task: Apr 30 11:44:58.595: a4:c3:61:7a:1a:4f DHCP   op: BOOTREPLY, htype: Ethernet, hlen: 6, hops: 0
    *DHCP Proxy Task: Apr 30 11:44:58.595: a4:c3:61:7a:1a:4f DHCP   xid: 0x7e549f4a (2119475018), secs: 0, flags: 0
    *DHCP Proxy Task: Apr 30 11:44:58.595: a4:c3:61:7a:1a:4f DHCP   chaddr: a4:c3:61:7a:1a:4f
    *DHCP Proxy Task: Apr 30 11:44:58.595: a4:c3:61:7a:1a:4f DHCP   ciaddr: 0.0.0.0,  yiaddr: 172.24.16.102
    *DHCP Proxy Task: Apr 30 11:44:58.595: a4:c3:61:7a:1a:4f DHCP   siaddr: 0.0.0.0,  giaddr: 0.0.0.0
    *DHCP Proxy Task: Apr 30 11:44:58.595: a4:c3:61:7a:1a:4f DHCP   server id: 0.0.0.0  rcvd server id: 172.24.13.251
    *DHCP Socket Task: Apr 30 11:45:07.059: a4:c3:61:7a:1a:4f DHCP received op BOOTREQUEST (1) (len 308,vlan 92, port 13, encap 0xec05)
    *DHCP Socket Task: Apr 30 11:45:07.059: a4:c3:61:7a:1a:4f DHCP selecting relay 1 - control block settings:
                            dhcpServer: 172.24.13.251, dhcpNetmask: 0.0.0.0,

    Thanks Scott,  here you go...
    On Foreign:
    WLAN Identifier.................................. 2
    Profile Name..................................... BAI-Beta
    Network Name (SSID).............................. BAI-Beta
    Status........................................... Enabled
    MAC Filtering.................................... Disabled
    Broadcast SSID................................... Disabled
    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......................... 42
    Exclusionlist Timeout............................ 60 seconds
    Session Timeout.................................. 86400 seconds
    User Idle Timeout................................ 300 seconds
    --More-- or (q)uit
    User Idle Threshold.............................. 0 Bytes
    NAS-identifier................................... CHTWLC
    CHD per WLAN..................................... Enabled
    Webauth DHCP exclusion........................... Disabled
    Interface........................................ management
    Multicast Interface.............................. Not Configured
    WLAN IPv4 ACL.................................... unconfigured
    WLAN IPv6 ACL.................................... unconfigured
    mDNS Status...................................... Enabled
    mDNS Profile Name................................ default-mdns-profile
    DHCP Server...................................... Default
    DHCP Address Assignment Required................. Enabled
    Static IP client tunneling....................... Disabled
    PMIPv6 Mobility Type............................. none
    Quality of Service............................... Bronze
    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.............................. 5,6
    Scan Defer Time.................................. 100 milliseconds
    WMM.............................................. Disabled
    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................................ 172.24.13.20 1812
       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.................................. Enabled
             PSK..................................... Disabled
             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................................... Enabled
       FlexConnect Local Switching................... Disabled
       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
     2           172.24.13.251        Up
    802.11u........................................ Disabled
    MSAP Services.................................. Disabled
    On Anchor:
    WLAN Identifier.................................. 1
    Profile Name..................................... BAI-Beta
    Network Name (SSID).............................. BAI-Beta
    Status........................................... Enabled
    MAC Filtering.................................... Disabled
    Broadcast SSID................................... Disabled
    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......................... 48
    Exclusionlist Timeout............................ 60 seconds
    Session Timeout.................................. 86400 seconds
    User Idle Timeout................................ 300 seconds
    --More-- or (q)uit
    User Idle Threshold.............................. 0 Bytes
    NAS-identifier................................... CHADWLC01
    CHD per WLAN..................................... Enabled
    Webauth DHCP exclusion........................... Disabled
    Interface........................................ bai-beta
    Multicast Interface.............................. Not Configured
    WLAN IPv4 ACL.................................... unconfigured
    WLAN IPv6 ACL.................................... unconfigured
    mDNS Status...................................... Enabled
    mDNS Profile Name................................ default-mdns-profile
    DHCP Server...................................... Default
    DHCP Address Assignment Required................. Enabled
    Static IP client tunneling....................... Disabled
    PMIPv6 Mobility Type............................. none
    Quality of Service............................... Bronze
    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.............................. 5,6
    Scan Defer Time.................................. 100 milliseconds
    WMM.............................................. Disabled
    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................................ 172.24.13.20 1812
       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.................................. Enabled
             PSK..................................... Disabled
             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................................... Enabled
       FlexConnect Local Switching................... Disabled
       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
     1           172.24.13.251        Up
    802.11u........................................ Disabled
    MSAP Services.................................. Disabled

  • WLC 5508 and WPA/WPA2 causes client DNS lookups to fail

    Hi all, we just recently received a brand new 5508 with 6.0.199.4 firmware.  We currently have three LAP-1250s that associate just fine to the WLC.
    For testing purposes only, we enabled WPA2 with both types of encryption TKIP and AES with an ASCII PSK.   The clients are able to connect, authenticate and get an IP address from our local (same subnet) DHCP server.  They also get the DNS info from our DHCP server.   However, the problem is that they are not able to do any DNS lookups.   I haven't run wireshark yet to confirm, but it sounds very familiar to this problem: https://supportforums.cisco.com/message/3202369
    I've even had clients use nslookup with both of my DNS servers and they are not able to resolve.  I'm not sure if the request or the reply is being blocked/dropped, but I can find out tomorrow.
    Now the strange part - if I turn off WLAN security altogether, it works!   That's right, I just disable L2 security for the WLAN and re-connect the clients and they are able to do full DNS lookups.
    AND - if I leave L2 security configured (WPA2 with PSK), and enable L3 Passthrough security - the clients get to the auth web page, click the "accept" button and are then able to do full DNS lookups too.
    What could be the problem here?   There's nothing I see configured for the L2 or L3 security settings that could be the culprit.  We're using default (from Cisco) configuration, so there's no ACLs configured or anything like that to block DNS.
    Another strange thing here which may or not be related - during initial configuration the setup asked for a virtual IP - so I gave it one - 1.1.2.2.   Now when I do an ipconfig /all on the client, I see this 1.1.2.2 address listed as the DHCP server.  Why is this?   It's definitely getting an IP address and DNS info from the correct DHCP server, so not sure why this is showing up.
    Thanks, Matt

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    Hi Matt,
    Just wanted to jump in, and also mention it may be worth attempting to disable the fastpath feature on the 5508, and test your failing client again.  You may be hitting CSCti34667.
    debug fastpath cfgtool --fc.disable
    This command can be run via Telnet/SSH.  Please keep in mind that fastpath will automatically re-enable periodically, so we recommend disabling every 10 minutes as a workaround for any known fastpath issues.  You can do so by running the following Macro in TeraTerm:
    :mainloop
       sendln "debug fastpath cfgtool --fc.disable"
       pause 600
    goto mainloop
    If you find that disabling fastpath resolves your concern, you can reach out to TAC for an Escalation Image with the fix for this one.
    Best,
    Drew

  • WLC 5508 and AIR CAP 1602I

    Hello,
    We've got a problem with the AP (AIR CAP 1602I) which is managed by WLC 5508(7.4.100.60)
    Users connect to the AP with VOIP phones(Avaya).. and there are following problems during calls
    -robot voice
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    Strange thing is that there is no problem with older APs which are managed with the same WLC.
    Any idea?
    Thanks in advance

    Well that can be a cause also. I would look at using 7.4.110.0 which is MR1. If that doesn't help, then open a TAC case as it might be something else. Going to v7.5 I don't think will fix the issue.
    Many times I would go the the manufacture and find out if the support a certain code or not. It's nice when they do test to make sure it still works. Some manufactures do test and will suggest code versions and that's when you have to decide if the 1602 was really needed or just keep adding 1262's since there was only 3 added.
    Sent from Cisco Technical Support iPhone App

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