Dynamic interface do not obtain IP.

we created a dynamic interface on WLC and associated a one ssid using dhcp but this interface do not obtain IP
could you help me to resolve this case on wlc?
regards,

The dynaminc interface is configure to be static.Then from the GUI goto CONTROLLER----INTERNAL DHCP SERVER----DHCP SCOPE
But the dynamic interface must be in the same ip subnet with the dhcp scope you created. You then need to tie it with the SSID u want. STEP click WLAN-----then the wlan id no---------GENERAL----Inteface u and put the dynamic inteface u just created.

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    I would like to ask for I have not found any supporting documents with regard to my concern.
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    IIRC, you need the OEAP to join to the management address since that is where you will be entering the nat'd address. So using a dynamic interface will not work and really can only work when APs are local mode.
    Sent from Cisco Technical Support iPhone App

  • Cannot contact Non-native dynamic interfaces on WLC 4402

    Hi,
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    management                      LAG  untagged 192.168.7.2     Static  No     No
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  • Mgmt Via Dynamic Interface not working on 5505 version 7.2.111.3

    Folks,
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    Im having a similar issue and have 2 TAC cases open.
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  • WLC Dynamic Interface

    I wonder why we need Dynamic Interfaces. I have created two WLANs. One is WPA2-Enterprise obtaining vlan id's per user from Radius server and the other WEP wlan for guest users whose traffic should go to a specific guest vlan. I am using an external DHCP server and configured WLC not to proxy dhcp requests and to act as a bridge.
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  • Prime Infrastructure 2.1.1 cannot add more than two interfaces in Dynamic Interface Controller Templates

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  • Dynamic interface port assignment

    Good Day,
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    You're correct. Creating a dynamic interface for each VLAN is exactly what you need to do. This will load-balance the traffic from the multiple VLANs across your links.
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  • Adding (dynamic) interfaces to WLC 2504 causes loss of network

    I'm trying to add a new dynamic interface, that I will tie a specific WLAN to so that clients on that WLAN is in the correct vlan. After adding it I loose connectivity both to the main management address (10.99.0.60) and to the ip address of the dynamic interface (10.99.12.4). In fact, the dynamic interface address responds and prompts me to login, but after doing so all I get is a blank page. Here's the two interfaces pulled from the CLI - what am I doing wrong?
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    Interface Name................................... management
    MAC Address...................................... c0:8c:60:c7:99:00
    IP Address....................................... 10.99.0.60
    IP Netmask....................................... 255.255.255.0
    IP Gateway....................................... 10.99.0.1
    External NAT IP State............................ Disabled
    External NAT IP Address.......................... 0.0.0.0
    VLAN............................................. 31        
    Quarantine-vlan.................................. 0
    Active Physical Port............................. 1         
    Primary Physical Port............................ 1         
    Backup Physical Port............................. Unconfigured
    DHCP Proxy Mode.................................. Global
    Primary DHCP Server.............................. 10.99.0.1
    Secondary DHCP Server............................ Unconfigured
    DHCP Option 82................................... Disabled
    IPv4 ACL......................................... Unconfigured
    mDNS Profile Name................................ Unconfigured
    AP Manager....................................... Yes
    Guest Interface.................................. No
    L2 Multicast..................................... Enabled
    Interface Name................................... lan
    MAC Address...................................... c0:8c:60:c7:99:04
    IP Address....................................... 10.99.12.4
    IP Netmask....................................... 255.255.252.0
    IP Gateway....................................... 10.99.12.1
    External NAT IP State............................ Disabled
    External NAT IP Address.......................... 0.0.0.0
    VLAN............................................. 33        
    Quarantine-vlan.................................. 0
    NAS-Identifier................................... mob-wlc
    Active Physical Port............................. 1         
    Primary Physical Port............................ 1         
    Backup Physical Port............................. Unconfigured
    DHCP Proxy Mode.................................. Global
    Primary DHCP Server.............................. Unconfigured
    Secondary DHCP Server............................ Unconfigured
    DHCP Option 82................................... Disabled
    IPv4 ACL......................................... Unconfigured
    mDNS Profile Name................................ Unconfigured
    AP Manager....................................... No
    Guest Interface.................................. No

    So take a look at this. I have the dynamic interface used in wlan 2 (mytestssid as shown above). Now the management address, 10.99.0.60 cant be reached:
    Nmap scan report for 10.99.0.60
    Host is up.
    PORT    STATE    SERVICE
    22/tcp  filtered ssh
    443/tcp filtered https
    After removing wlan 2 and the dynamic interface, mgmt access starts to work again:
    config wlan disable 2
    config wlan delete wlan 2
    config interface delete lan
    Nmap scan report for 10.99.0.60
    Host is up (0.0037s latency).
    PORT    STATE SERVICE
    22/tcp  open  ssh
    443/tcp open  https
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    WLAN ID  WLAN Profile Name / SSID               Status    Interface Name
    1        someotherssid / someotherssid              Enabled   management  
    (Cisco Controller) config> interface create lan 33
    (Cisco Controller) config> interface address dynamic-interface lan 10.99.12.4 255.255.252.0 10.99.12.1
    (Cisco Controller) >config wlan disable 1
    (Cisco Controller) >config wlan interface 1 lan
    (Cisco Controller) >config wlan enable 1
    Voila, management access lost again:
    Nmap scan report for 10.99.0.60
    Host is up.
    PORT    STATE    SERVICE
    22/tcp  filtered ssh
    443/tcp filtered https
    This time, there's no physical port assigned to the dynamic interface 'lan':
    Interface Name                   Port Vlan Id  IP Address      Type    Ap Mgr Guest
    lan                              -    33       10.99.12.4      Dynamic No     No   
    management                       1    31       10.99.0.60      Static  Yes    No   
    virtual                          N/A  N/A      1.1.1.1         Static  No     No   
    Adding that:
    (Cisco Controller) config interface port lan 1
    Interface Name                   Port Vlan Id  IP Address      Type    Ap Mgr Guest
    lan                              1    33       10.99.12.4      Dynamic No     No   
    Still no management access..:
    Nmap scan report for 10.99.0.60
    Host is up.
    PORT    STATE    SERVICE
    22/tcp  filtered ssh
    443/tcp filtered https
    For reference, the detailed interface config (which clearly shows that 'management' should be ap mgmt.. and dynamic interface 'lan' shouldn't (and thus shouldn't affect it - RIGHT?)):
    Interface Name................................... lan
    MAC Address...................................... c0:8c:60:c7:99:04
    IP Address....................................... 10.99.12.4
    IP Netmask....................................... 255.255.252.0
    IP Gateway....................................... 10.99.12.1
    External NAT IP State............................ Disabled
    External NAT IP Address.......................... 0.0.0.0
    VLAN............................................. 33        
    Quarantine-vlan.................................. 0
    NAS-Identifier................................... mob-wlc
    Active Physical Port............................. 1         
    Primary Physical Port............................ 1         
    Backup Physical Port............................. Unconfigured
    DHCP Proxy Mode.................................. Global
    Primary DHCP Server.............................. Unconfigured
    Secondary DHCP Server............................ Unconfigured
    DHCP Option 82................................... Disabled
    IPv4 ACL......................................... Unconfigured
    mDNS Profile Name................................ Unconfigured
    AP Manager....................................... No
    Guest Interface.................................. No
    Interface Name................................... management
    MAC Address...................................... c0:8c:60:c7:99:00
    IP Address....................................... 10.99.0.60
    IP Netmask....................................... 255.255.255.0
    IP Gateway....................................... 10.99.0.1
    External NAT IP State............................ Disabled
    External NAT IP Address.......................... 0.0.0.0
    VLAN............................................. 31        
    Quarantine-vlan.................................. 0
    Active Physical Port............................. 1         
    Primary Physical Port............................ 1         
    Backup Physical Port............................. Unconfigured
    DHCP Proxy Mode.................................. Global
    Primary DHCP Server.............................. 10.99.0.1
    Secondary DHCP Server............................ Unconfigured
    DHCP Option 82................................... Disabled
    IPv4 ACL......................................... Unconfigured
    mDNS Profile Name................................ Unconfigured
    AP Manager....................................... Yes
    Guest Interface.................................. No
    L2 Multicast..................................... Enabled
    By the way, the switchport of my (C3560G) doesnt specifically allow some VLANs - meaning they allow all vlans:
    interface GigabitEthernet0/28
     description cisco_wlc
     switchport trunk encapsulation dot1q
     switchport mode trunk
    And the vlans in question are present:
    31   enet  100031     1500  -      -      -        -    -        0      0   
    32   enet  100032     1500  -      -      -        -    -        0      0   
    33   enet  100033     1500  -      -      -        -    -        0      0   
    34   enet  100034     1500  -      -      -        -    -        0      0   

  • WLC2504 - Dynamic interface problem

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  • Dynamic interface ip addtress setted to 0.0.0.0 what happens?

    hi guys,
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    hi Dan
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    Rasika
    **** Pls rate all useful responses ****

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    I'm trying to broadcast multiple SSIDs per AP. I would like the new second SSID to be on a different VLAN. I have been reading this article http://www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a00805e7a24.shtml#dyn-interface and it looks like you create a trunk port on the switch that the WLC is connected to, which makes sense to me. A friend however told me to use a seperate physical interface on the WLC and assign the dynamic interface to it and connect it to the desired VLAN, instead of using the interface that is currently in production. I liked this idea because I would have downtime trying to reconfigure the port as a trunk that's in production.
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        A. All the client (802.11) packets are encapsulated in a LWAPP packet by the LAP and sent to the WLC. WLC descapsulates the LWAPP packet and acts based on the destination IP address in the 802.11 packet. If the destination is one of the wireless clients associated to the WLC, it encapsulates the packet again with the LWAPP and sends it to the LAP of the client, where it is decapsulated and sent to the wireless client. If the destination is on the wired side of the network, it removes the 802.11 header, adds the Ethernet header, and forwards the packet to the connected switch, from where it is sent to the wired client. When a packet comes from the wired side, WLC removes the Ethernet header, adds the 802.11 header, encapsulates it with LWAPP, and sends it to the LAP, where it is decapsulated, and the 802.11 packet is delivered to the wireless client. For more information about this, refer to the LWAPP Fundamentals section of the document Deploying Cisco 440X Series Wireless LAN Controllers.
    Q. What are the various options available to access the WLC?
        A. This is the list of options available to access the WLC:
            GUI access with HTTP or HTTPS
            CLI access with Telnet, SSH, or console access
            Access through service port
        For more information on how to enable these modes, refer to the Using the Web-Browser and CLI Interfaces section of the document Cisco Wireless LAN Controller Configuration Guide, Release 5.1. Usually, the management interface IP address is used for GUI and CLI access. Wireless clients can access the WLC only when the optionEnable Controller Management to be accessible from Wireless Clients is checked. In order to enable this option, click the Management menu of the WLC, and click Mgmt via Wireless on the left-hand side. WLC can also be accessed with one of its dynamic interface IP addresses. Use the config network mgmt-via-dynamic-interface command to enable this feature. Wired computers can have only CLI access with the dynamic interface of the WLC. Wireless clients have both CLI and GUI access with the dynamic interface.

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