topic Setting management interface vWLC 7.6.100 in Wireless

Setting management interface vWLC 7.6.100

Daniel Jensen — Mon, 05 Jul 2021 06:56:05 GMT

Hello.

I have a problem setting Management interface IP. I get the error "Error in setting management interface IP. Conflict with another interface".

I have created 2 port groups, following the deployment guide.

http://www.cisco.com/en/US/products/ps12723/products_tech_note09186a0080bd2d04.shtml

I have cheked that the right port-group is associated with the correct Network adapter.

I am using AIR-CTVM-7-6-100-0.

Does anyone faced this issue?

Thanks.

Setting management interface vWLC 7.6.100

Leo Laohoo — Fri, 10 Jan 2014 10:23:19 GMT

Can you post the output to the command "sh interface summary" please?

Setting management interface vWLC 7.6.100

Daniel Jensen — Fri, 10 Jan 2014 10:26:40 GMT

It's in the first startup, when I configure it from the console, so I am afraid that i can't post the output.

Setting management interface vWLC 7.6.100

Leo Laohoo — Fri, 10 Jan 2014 10:30:22 GMT

I'm not familiar with the vWLC.

But is your Service Port and your Management in the same IP Subnet?

They shouldn't be. Service port should have a non-routable IP address.

Setting management interface vWLC 7.6.100

Daniel Jensen — Fri, 10 Jan 2014 10:39:25 GMT

Hello Leo.

I choosed Service-port as DHCP first, I think that was the mistake. When i choosed Static and assigned a none routeable IP (2.2.2.2) it worked.

Thanks.

Setting management interface vWLC 7.6.100

Leo Laohoo — Fri, 10 Jan 2014 10:41:39 GMT

Glad to see it works.

And thanks for taking the time to rate our posts.

Re: Setting management interface vWLC 7.6.100

Freerk Terpstra — Fri, 10 Jan 2014 20:00:29 GMT

If you have both interfaces in the same VLAN (even with different IPv4 networks) I have had issues with the vWLC. Access-points won't join the controller because the have the wrong MAC adres (from the service port and not from the management interface) in there ARP cache.

Is there someone else who has seen this issues? I have seen this in two deployments with 1600 AP's.

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Setting management interface vWLC 7.6.100

Leo Laohoo — Fri, 10 Jan 2014 23:03:57 GMT

If you have both interfaces in the same VLAN (even with different IPv4 networks) I have had issues with the vWLC.

Management Interface and Service Port IP addresses should NEVER BE in the same subnet. This is the basic "foundation" to the WLC. Service Port is exclusively used for Out of Bound Management (OoBM) and this is the main reason and it's functional design. Management Interface, however, is the "network facing" IP address. This is how you are able to manage the vWLC and how the APs talk to the vWLC (no more AP Management Interface).

In our network, we use 10.0.0.0/8 so our Management IP address is one of the subnets of the 10.X.X.X/26 and a specific VLAN. Our Service Port is also in another VLAN and has a 192.168.0.0/24 subnet.

Re: Setting management interface vWLC 7.6.100

Freerk Terpstra — Fri, 10 Jan 2014 23:51:12 GMT

I know that they should be on different IP subnets, but I guess what I'm trying to say is that you have to make sure that they are on different L2 networks aswell if your AP's are on the same VLAN. If not AP's won't join the controller because of the wrong ARP entry (I see in the arp table on the AP for the management IP the MAC adres from the service port)

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This "issue" has been fixed

Freerk Terpstra — Wed, 17 Sep 2014 09:44:18 GMT

This "issue" has been fixed in AirOS release 8.0, see for more information bug CSCuj14843!