Dynamic interface

Hi guys!
I've created a variable which gets file name. I'd like to buil an interface based on this file name. File name is the source (so its dynamic), target is constant. I don't know how to map this dynamic file into target datastore. I've tried #FILE_NAME.COLUMN_NAME but it doest work. How to make it right ?
With regards,
PsmakR

Hi PsmakR,
Trying to help you.
You are almost done. :)
1. In your source data store just give the resource name as #<your project code>.file_name ( for ex: #OTN.FILE_NAME)
2. Drag and drop that data store as your source in the interface.
3. In your project create a variable FILE_NAME data type as Alphanumeric, Action as Not Persistent.
4. Drag and drop the twice variable in your package make that as a Declare variable and in the second step make that as Refresh Variable then in the third step your interface.
5. Generate a scenario out of that and while executing that scenario give the Value as your desired file name, hit enter once you gave, otherwise it wont take the input and make sure that LAST VALUE is UNCHECKED.
P.S: Before editing your file data store resource name make sure you reversed all the columns.
Thanks,
G

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Prime Infrastructure 2.1.1 cannot add more than two interfaces in Dynamic Interface Controller Templates

Cisco Prime Infrastructure is a damned nightmare of browser bugs (some features work in IE8, some in IE9, and some only in Firefox). And I am not sure if what I am experiencing is a browser bug - or a real bug - or something that I was able to do before and can't any more? I would love for someone to either explain why this is happening to me, or reproduce the bug!
I'm running Prime 2.1.1. I am doing this ...
Configure > Controller Template Launchpad
System > Dynamic Interface
Select a command > Add interface (GO)
Enter all the properties - roll to the bottom of the page, and click Apply to Controllers
I have four controllers. And normally I would add an interface for each controller. But I can only create two out of the four. It doesn't matter which two I choose. When I click Add under Manage Interfaces for the third controller, I cannot click the Done button to apply it (see screenshot, attached). I have found that if I change the VLAN to something else, it will let me save it. But ... why? I went back and reviewed all of my existing interface templates and I am not doing anything different. Although, they were all created a long while ago using WCS 7.x.
Any help, guidance, or confirmation of insanity would be appreciated.
-Steve Ballantyne

I doubt I will get any hits on this here but I always try. I opened a TAC case. I will come back and comment on whatever they find.

ISE and WLC dynamic interface group assignment ?

I have a somewhat large deployment coming up with several WLC dynamic interfaces assigned to an interface group, replicated across for multiple sites. I understand that ISE can return the VLAN ID to the WLC to place the client in, but if I'm using interface groups, this seems to negate the usefulness of the interface group to load clients across multiple VLANs. Not only that, but with the number of dynamic interfaces (VLAN ID's), multiplied by the number of sites, would seem to be overwhelming on the ISE side policy configuration.
Is it possible for ISE to return an Interface name/group to the WLC instead of just a VLAN ID ?
TIA

I understand that WLC 7.2 code can now accept the interface group name as a AAA override, which is great, but it doesn't specify the AAA source (ISE vs. ACS).
This is the example I'm questioning: (they use the VLAN ID only, instead of an interface name)
http://www.cisco.com/en/US/products/ps10315/products_tech_note09186a0080bba10d.shtml#topic17
Edit:
Found the correct Attribute Under "Adv. Attribute Settings" in the Airspace Authorization Profiles (Airespace:Airespace-Interface-Name).

Mgmt Via Dynamic Interface not working on 5505 version 7.2.111.3

Folks,
         I have posted this question a couple of times on the forum but did not get a solution. I am trying to manage my 5508 controller from a dynamic interface which is assigned to port 7 of the controller. I have a switch connected to that port which has a PC on the same subnet as the dynamic interface. From the PC, I can ping the dynamic interface IP Address, but can not telnet,SSH,http or https to it. There is no clear doc that specifics how to effectly use the command "config network mgmt-via-dynamic-interface" command.
Mgmt Via Wireless Interface................. Enable
Mgmt Via Dynamic Interface.................. Enable
Interface Name                   Port Vlan Id IP Address      Type    Ap Mgr Guest
173                                      7    173      172.16.101.100 Dynamic Yes    No
management                         1    172      172.16.100.100 Static Yes    No
service-port                           N/A N/A      0.0.0.0         DHCP    No     No
virtual                                    N/A N/A      1.1.1.1         Static No     No
7 Normal Forw Enable Auto       1000 Full Up     Enable N/A     1000BaseTX
Any guidence would be highly appreciated.

Im having a similar issue and have 2 TAC cases open.
TAC CASE#1: issue is that even when disbaled I can still access the dynmic interface via HTTPS/HTTPS/TELNET/SSH. But this is on a WISM1.
Thanks a lot for your quick and prompt response, I see that there is an internal Bug with an ID CSCty32586.
I see that the bug is fixed told be fixed in 7.0.230.0, but it’s not fixed. The bug is fixed in 7.2.x version.
I understand that you are using Wism on which 7.1.x version and above is not supported.
As 7.0.235.3 is released recently to overcome some of the changes and to fix some of the Bugs with older version on these devices.
Kindly try to upgrade the software version of the WLC to 7.0.235.3 and check the compatibility.
Please do let me know in case of any concerns and I will be glad to assist you.
TAC CASE#2: Just like you I can not access the dynamic interface. Still working that one .. The holiday dropped when I just opened that case.
"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin
‎"I'm in a serious relationship with my Wi-Fi. You could say we have a connection."

Dynamic interface port assignment

Good Day,
I am setting up a 4402 (50 ap license ver 5.0) that will manage about 40 aps. Following the Cisco docs, I have created two ap manager intefaces for load balancing. Each physical port is attached to one of two Cat 6509s (no lag).
Our network ultimately connects to a router (over which I have no control) with six 100 mps ports each representing a subnet/vlan. So my intent is to create six dynamic interfaces each coresponding to a vlan for load balancing and bandwidth optimization.
My question regards assinging each dynamic interface to a physical port. Simple logic would have me assinging 3 interfaces to port #1 and three to port #2, then assigning a proportionate number of aps to each interface.
Is it that simple, or are there other considerations.
Thanks

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.
I would highly recommend that you consider LAGging the two uplinks. It provides better load-balancing and better redundancy. Since you're connecting to a 6509, you can LAG between two blades for redundancy purposes.
Whether you LAG or not is completely up to you, of course. But you seem to be good to go if you want to leave them unLAGged.
Jeff

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.
I had to create dynamic interfaces on WLC (we are using 5508 with software version 7) for all the VLANs which radius server returns. I could make it with only defining the dynamic interfaces and entering 0.0.0.0 for ip addresses.
For the other WLAN with WEP, I have to enter and IP for the dynamic interface to work. I am not sure if this is a requirement or my misconfiguration, but I do want a way not to set an IP address for the dynamic interface. I do not want to waste addresses and also do not want the clients to be able to access wlc through that IP address.
I appreciate any comment on why I need IP addresses for dynamic interfaces.

Vadood... The WLC does use that IP address as it needs to have layer 2 connection to any subnet it will place users on. Even is your doing AAA override, the radius tell the WLC that that device needs to be on vlan x and the WLC will put that device on vlan x, but if the WLC has no IP address on that subnet, well then the communication stops there. The user will never get an IP address if using dhcp or if the device has a static, the WLC has no way to communicate to that subnet.
By the way, users can't access the dynamic interface by default. You have to enable that. But then again, they can try to access the management interface also, unless you disable globally management over wireless.
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WLC DHCP Settings - Under Dynamic Interface configuration

Hi Guys,
If I have a dynamic interface that is connected to a subnet where the router interfaces have DHCP servers configured under the helper address commands, do I need to configure the DHCP fields under the dynamic interface configuration?
I have helper address configured on the connected routers AND these fields configured with the same DHCP servers.
Just wondering if I can take the IPs out of the WLC configuration?
Many thx indeed,
Ken

Ken, the DHCP address under the dynamic interface, is the address the WLC will unicast the DHCP request to when a client tries to use that interface. Under normal operation this address is needed. There is a way to get the WLC to bridge the packet to the wire so that it is a broadcast instead of a unicast packet. CLI command is config dhcp proxy disable.
But I do believe that even if you issue the CLI command, the software wants the DHCP address listed under the dynamic interface.
HTH,
Steve

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?
And oh, not adding an IP to the dynamic interface makes it impossible to use within a WLAN.
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
So... here's me adding the dynamic interface in cli AGAIN:
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

Dynamic interface declaration

Hello,
Is it possible to have a dynamic interface declaration like you can have a dynamic object declaration?
For an object:
data: lo_object type ref to object.
create object lo_object type (lv_object_name).
Is this in some way possible to do with an interface? I need to do this for an interface at runtime.
Gr,
Jaron

You can create data of a dynamically given reference type (which may be an interface) and move the object reference to it.
Something like so:
DATA:
      my_obj TYPE REF TO object,
      lr_data TYPE REF TO data.
FIELD-SYMBOLS: <fs> TYPE ANY.
CREATE OBJECT my_obj TYPE my_object_type.
TRY.
CREATE DATA lr_data TYPE REF TO (some_interface_type_name).
ASSIGN lr_data->* TO <fs>.
   <fs> ?= my_obj.
CATCH cx_sy_move_cast_error.
CATCH cx_sy_create_data_error.
ENDTRY.
Basically, the assignment tests if my_obj is an instance of the type named some_interface_type_name.
Hope this helps,
Sebastian

WLC2504 - Dynamic interface problem

Hi,
I have problem with my WLC2504. My WLC is connected through two ports (1 and 2 of four) to my distro switch, where I have dot1q trunks configured. WLC is configured with Management interface (IP address 192.168.255.9/24), over which my LAPs are correctly joined. However, once I'm trying to add additional Dynamic WLC interface, which has VLAN TAG 10 and which I'd like to associate with my WLANS, my WLC stop responding through GUI and SSH, but pings on the management and dynamic interface IP addresses are sucesfull. Just as a note, dynamic AP management is not enabled on mentioned dynamic interface. In a case when I enable dynamic AP management on the dynamic interface (activated also on management interface), GUI and SSH work, but I can not associated WLAN to the dynamic interface, only to the management one
Thanks for soon answer
palo73

The management interface is the default interface for in-band management of the controller and connectivity to enterprise services such as AAA servers. The management interface is also used for communications between the controller and APs. The management Interface is the only consistently "pingable" in-band interface IP address on the controller. The management interface will act like an AP manager interface by default.
The dynamic interface with the “Dynamic AP Management” option enabled on it is used as the tunnel source for packets from the controller to the AP, and as the destination for CAPWAP packets from the AP to the controller. The dynamic interfaces for AP manager must have a unique IP address. Typically, this is configured on the same subnet as the management interface, but this is not necessarily a requirement. In the case of the Cisco 2500 Series Wireless Controller, a single dynamic AP manager can support any number of APs. However, as a best practice, it is suggested to have 4 separate dynamic AP manager interfaces and associate them to the 4 Gigabit interfaces. By default, the management interface acts like an AP-manager interface as well and it is associated to one Gigabit interface. As a result, if you are using the management interface, you need to create only 3 more dynamic AP manager interfaces and associate them to the remaining 3 Gigabit interfaces.
The virtual interface is used to support mobility management, DHCP relay, and embedded layer 3 security like guest web authentication and VPN termination. The virtual interface must be configured with an unassigned and unused gateway IP address. A typical virtual interface is 1.1.1.1. The virtual interface address is not pingable and should not exist in any routing table in your network.
Dynamic interfaces are created by users and are designed to be analogous to VLANs for wireless LAN client device. The Cisco 2500 Series Wireless Controller will support up to 16 dynamic interfaces. Dynamic interfaces must be configured on a unique IP network and VLAN. Each dynamic interface acts as a DHCP relay for wireless clients associated to wireless LANs (WLANs) mapped to the interface. A WLAN associates an SSID to an interface and is configured with security, QoS, radio policies, and other wireless network parameters. There can be up to 16 WLANs configured per controller.
Guidelines for Deploying the Cisco 2500 Wireless Controller
Ethernet ports on Cisco 2500 Series Wireless Controllers do not work as Switch ports (that is, 2 machines directly connected to these ports will not be able to communicate with each other). You should not connect servers like DHCP, TFTP etc. on these ports and expect Wireless Clients and APs to receive an IP address from this DHCP server.
Ethernet ports on the Cisco 2500 Series Wireless Controller should only be used to connect/uplink to an infrastructure network configured as a data interface (management interface and dynamic interfaces) or an AP-managers interface.
If multiple Ethernet ports on a Cisco 2500 Series Wireless Controller are uplinked to an infrastructure switch, you should make sure data interfaces (management or dynamic interfaces) or AP-managers interfaces are configured for these uplinked physical ports. Physical Ethernet ports which are used as an uplink to an infra switch should not be left un-configured. This may result in unexpected behaviors.
Multicast unicast is not a supported configuration on Cisco 2500 Series Wireless Controller. As a result, HREAP APs are not able to receive multicast traffic because HREAP APs only work with multicast unicast.
For more information you can refer to the link -
http://www.cisco.com/en/US/products/ps11630/products_tech_note09186a0080b8450c.shtml

Configuring multiple dynamic interfaces in 5508

Hi,
I have 5508 controller where as ap-manager interface configuration is optional but since i have different topology at other end , I have 4507 configured with HSRP and i want to divide the AP traffic in both the switches therefore I will have to go ahead and configure multiple AP-manager interface and map with two different physical ports.
But I have challenge to configure multiple dynamic interfaces.
I want to create two wlans ( Internal wlan and guest wlan )
Internal WLAN : 192.168.10.0
default gateway : 192.168.10.1
internal DHCP server : 172.16.10.1
Physical Port : ............... ? which port to configure ? ( I have connectivity with port 1 & port 2 )
Guest WLAN : 192.168.20.0
Default gateway : 192.168.20.1
Internal DHCP server : 172.16.10.1
Physical port : ............... ? which port to configure ? ( I have connectivity with port 1 & port 2 )
I want to map it to multiple ports of dynamic interfaces for client traffic to physical ports.
how do i configure it ?

In adition to Nico's answer, I would go throught the detailed guide for the configuration of dynamic interfaces:
http://www.cisco.com/en/US/docs/wireless/controller/7.0/configuration/guide/c70mint.html#wp1167723.
HTH,
Tiago
If this helps you and/or answers your question please mark the question as "answered" and/or rate it, so other users can easily find it.

WLC dynamic interface limit

Hi,
I have a WISM with sw version 4.0.179.11 wich I try to add more dynamic interfaces on. However I get the message " Can't create more than 64 entries".
I find in the deployment guide for WLC - quote: "Dynamic Interfaces are created by users and are designed to be analogous to VLANs for wireless LAN client device. The WLC will support up to 512 Dynamic Interface instances. "
Has anybody encountered this limitation before?
How can I add more than 64 interfaces ?
regards rolf

Hi.
I have a customer wth a WLC which has DHCP Proxy disabled and Primary & Secondary DHCP servers configured (external to the WLC).
The problem I've just started looking at is...if the Primary has run out of leasable IP addresses, the WLC doesn't appear to request one from the Secondary server.
It looks like (without any real investigation) the "I've run out of addresses" response from the Primary server is sufficient for the WLC to believe that the Primary is still on the network and it doesn't need to go to the Secondary.
I'll add more as and when I do more testing.

4402 WLC Dynamic Interfaces- More than 1 Gateway Possible?

I am configuring a guest access solution with multiple guest access gateways associated with a single VLAN. Each gateway will have its own /24 network, and obviously it own gateway. The interface configuration page requires a single gateway in the IP config section.
Does anyone know the purpose of this IP config?
Will command line config of the dynamic interface permit no gateway and a netmask big enough to encompass all gateways?
Thanks

Thanks for your replies.
2 Coova gateways each with web authentication and a dhcp server plugged into each layer2 vlan works great with IOS APs, which do no require IP config per (vlan) subinterface.
The objective is to loadbalance, provide redundancy and handle the total number of guests. The DHCP servers race to provide the client with IP config which then causes the client subsequently use that gateway.

Dynamic interface: dynamic AP management + NAT enabled

Hello,
I would like to ask for I have not found any supporting documents with regard to my concern.
I would like to deploy our 2504 WLC connecting 600 Series OEAPs to it using a dynamic interface with dynamic AP management and NAT enabled disabling the management interface's dynamic AP management and NAT. Apparently, I was not able to connect the OEAPs to the WLC. But if I change the setting in using the management interface instead of my created dynamic interface, with dynamic AP management and NAT enabled, the OEAP successfully joins the controller.
Are there any solutions that I could use a dynamic interface as ap-manager with NAT or is it that the management interface can only be used?
Cheers!

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

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.

Dynamic interface with ip 0.0.0.0

Hi gusy,
what happens if i set yhe ip address of a dyn interface to 0.0.0.0 and associate this interface to a WLAN?
will WLAN+this dynamic interface work as a layer 2 VLAN?
thx....
Ale.

No,in fact I dont think you put all 0.0.0.0 on a dynamic interface ,...

Dynamic interface

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