Deleting Interface: Interface group is being used by AP Group

When trying to delete an interface from the Interface Groups, I am getting an error "Interface group is being used by AP Group." Is there a way I can go in to delete the interface?

Hi toupheng.her, thank you for using our forum, my name is Johnnatan I am part of the Small business Support community. In this case you need to disable all protocols or vlans where you are using the group that you want to delete, probably a vlan is using your group and that´s why you can´t delete it, then you will be able to delete it. You can also search ACL, VPN, NAT, etc... I hope you find this answer useful,
*Please mark the question as Answered or rate it so other users can benefit from it"
Greetings,
Johnnatan Rodriguez Miranda.
Cisco Network Support Engineer.

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When trying to delete an interface from an interface group, I am getting the error Interface group is being used by AP Group. Is there a way I can delete the interface?

Or you can select another interface freeing the one up you want to delete and then delete it .. key here is that the WLC wont delete a interface that is tied to a WLAN ..
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Hi everyone.
I have a small question.
I have two 5508 controllers with 6 Access Points (3 on each controller). The network layout has one AP on one controller, one on the other, 45 degrees and about 100ft apart from each other.
In this layout the clients roam from one AP to the other, one controller to the other, but there are certain times where the client loses connectivity to the network (layer 3). I don't see any disconnect or roaming messages in the controller logs, but the laptop shows a "!" sign in its wireless connection (win 7).
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Are these two WLC in same mobility group ? If that is the case clients should not change the IP when they roam from one WLC to another. Even in interface group configuration it should work like this.
Here is sample config I did to test this out (I haven't use interface group, but as per my understanding It should not make any difference).
http://mrncciew.com/2013/03/17/l3-inter-controller-roaming/
HTH
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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.
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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
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Found the correct Attribute Under "Adv. Attribute Settings" in the Airspace Authorization Profiles (Airespace:Airespace-Interface-Name).

Dynamic interface group assignment

Wir testen aktuell das dynamische vlan assignment mit dem wlc (version 7.3.101) und dem microsoft nps server. das überschreiben der vlan id anhand einer zutreffenden netzwerkrichlinie funktioniert einwandfrei. nun stellt sich die frage, ob das überschreiben auch möglich ist, wenn auf dem wlc für eine ap-group eine interface gruppe anstelle eines einzelnen vlans definiert ist. hat jemand erfahrungen damit gemacht? konkret sieht der aufbau wie folgend aus:
vlan 100-110 sind in als interface group01 zusammengefasst.
unter ap groups ist eine ssid mit dieser interface gruppe01 konfiguriert.
unter wlan ist eine ssid mit: radius server overwrite interface und: allow aaa override konfiguriert.
auf dem nps gibt es eine zutreffende netzwerkrichtlinie mit radius attribute:
framed-protocol = ppp
service-type = Framed
Tunnel-Medium-Type 802
Tunnel-Pvt-Group-Id = gruppe01 (Name der Interface Gruppe, analog VLAN)
Tunnel-Type = VLAN
--> Wenn wir eine einfache VLAN ID angeben funktioniert es, mit dem Namen der Interface Gruppe funktioniert es nicht.
Hat jemand erfahrung, ob das zuweisen einer interface gruppe per radius attribut möglich ist?

Thank you for your answer.
if i define a single vlan id, everything works fine. but we try to make this work with an interface group instead of a single vlan... i am not shure if this is possible or not.. i just read the following release notes:
AAA Override Support for Interface Groups
This release supports AAA override for interface groups.
This feature extends the current access point group and AAA override architecture where access point groups and AAA override can be configured to override the interface group WLAN that the interface is mapped to. This is done with multiple interfaces using interface groups.
so if i change the single vlan id from tunnel-private-group-id attribute to the interface group it doesnt work anymore...

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I have a WLC 5508 running 7.4.121.0 where several sites have APs in FlexConnect mode.
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Site 1 - Group 1 - vlan 110 (faculty) and vlan 112 (students)
Site 2 - Group 2 - vlan 210 (faculty) and vlan 212 (students)
Under WLAN -> Advanced -> AP Groups
I select Site 1 Group Name and add a new WLAN SSID to Interface/Interface Group mapping.
When I go to Wireless and select a FlexConnect AP from Site 1 and then go to the FlexConnect Tab -> VLAN Mappins the VLAN ID is wrong (neither 110 or 112). I can of course manually change it to 110 but then any clients on vlan 112 on that SSID can't connect to the network.
Is there a way to specific a VLAN ID when using Interface group and Flexconnect?

Do you have configured local switching and use AAA overide to asign the VLAN for faculty and students? Else can you give some more information about the configuration.
With local switching and VLAN AAA overide you need to create sub-interfaces on the AP's. You can do this in the Flexconnect group (one per site). Then go tho VLAN-ACL mapping and add the VLAN's you need on this site .

Interface Group in WLC

Hi to who will see my case
I have WLC configured by 3 Interfaces groups , 5 interfaces for each group (each group used by one SSID) .
SSID-EMPLOYEE
     EMPLOYEE-GROUP
          -EMPLOYEE-INTEFCAE-1 DHCP is MS server 2003 (Scope 10.21.4.0/22)
          -EMPLOYEE-INTEFCAE-2 DHCP is MS server 2003 (Scope 10.21.8.0/22)
          -EMPLOYEE-INTEFCAE-3 DHCP is MS server 2003 (Scope 10.21.12.0/22)
          -EMPLOYEE-INTEFCAE-4 DHCP is MS server 2003 (Scope 10.21.16.0/22)
          -EMPLOYEE-INTEFCAE-5 DHCP is MS server 2003 (Scope 10.21.20.0/22)
and the same for SSID-STUDENT and SSID-VOICE.
My labtob sometimes connects with the EMPLOYEE-INTEFCAE-1 and sometime with the second interface and so, How can I force it to connect with one interface all the time or how can I prevent the WLC to use the second interface as long as the first interface is not full.
because I need to reserve an IP address in the DHCP server from the first scope for my labtob, once I connect to the network I will get the same reserverd Address , but in my case I reserved the IP but the controller forced my labtob to connect the second interface and new scope.
Regards
Mahmoud

The interface group treats hosts in a similar fashion to round-robin.
1st host:group member 1
2nd host:group member 2
3rd...
4th...
until the last group member is reached and then it goes back to one.
Not sure if there is a way to force a host to a particular group member, unless of course you use a dedicated wlan bound to the particular subnet. This would not utilize the interface grouping though.
Perhaps a NAC solution could add some control over which network the laptop lands in....

Interface Groups

Force a device to a specific VLAN when using interface groups. A handful of devices need a static IP
Sent from Cisco Technical Support iPad App

You can force a device only if your using 802.1x and you are setup to use AAA Override. If its PSK, you can't force them on a specifics VLAN. You might be better off creating a new WLAN and have that only point to a specific interface.
Sent from Cisco Technical Support iPhone App

5508 WLC Interface Groups

We have not configured or used interface groups in our wireless deployments, and I am just curious if there are any issues or caveats experienced with using these? We have a few instances where we have setup a /23 network for a specific wlan. I undertsand this increases broadcasts. Would interface groups be preferred over using a /23 or even maybe a /22 to accomodate addressing?

By default, the WLC will not forward broadcast. There are pro's an con's to interface groups... if your doing multicast, that can be an issue unless you specify an multicast vlan. I have used interface groups because customer standardize on /24, so I would combine a bunch of /24's to create an interface group. I have customers with /23 and /23 and others with no issues... but I look at it as on the wired side. You okay with /23 and or /22 on the wired side?
Thanks,
Scott
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Impact of Deleting interface from ASA

Hi Everyone,
During our maintenance window i need to delete few interfaces from ASA.
In ASDM when i filter by these interface names i see many acl configured for these interfaces but ACL have different name as compare to interface
name.
If i delete the interface will it also delete all those ACLs and any object groups configured under interface subnets?
Or
What else will be deleted when i delete the interface from ASA?
Regards
MAhesh

You would have to re write that ACL entry as it will either be deleted or the reference to the inside interface will be deleted and the rest of the ACL will remain. When I tested it my ACL remained but the name of the interface was removed. As I mentioned I am testing this on an 8.4 box so it is possible that in newer versions this ACL will be deleted.
the access-group inside_access_in in interface inside command will be deleted once you delete the inside interface...actually you don't need to delete the inside interface for it to be deleted, you only need to remove the nameif command from the interface. once the nameif is removed from the interface, all commands that reference that name will also be deleted.
This is why I stated that you should assume that all commands that reference the name of the interface you are deleting will also be deleted. That would include, but not limited to, ACLs, NAT, Policy maps, and static routes...just to name a few.
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WLC, mapping new dynamic interface to an already used port

This is my question
We have a multiple wlc deployment and a wlan which is running dhcp issues (scopes exhausted)
The main Wlan is mapped to a dynamic interface group (2 vlans), both vlans are mapped to a single physical port
adding a new dynamic interface (vlan) to the interface group is needed,
- a new dynamic interface will be created and mapped to the same physical port of the other two (3 vlans)
- the new interface will be addad to the interface group
the question is:
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Does this mean, when utilizing an 802.1x WLAN in an AP Group, you can not dynamically assign an interface via radius because itw ill be ignored due to the AP Group settings? If so, that seems short sited to me?
AAA override get priority when AAA override and AP group is used. the debug client output should show site specific over-ride for AP group initially and once it goes into .1x auth it will return the overrided vlan.

Deleting Interface: Interface group is being used by AP Group

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