Independent migration of LWAPP and dynamic interfaces on the controller 4404

We are currently migrating from a stand-alone environment. Access points currently take wireless clients and put

their right in separate VLANs that SSID that they associate with. Each SSID is another customer

So we are essentially acting as a service provider. We try not to get involved with the functions of layer 3.

Each range of IP of SSID is ordered by a customer or a third party. So far, we didn't specify an address from DHCP server, the client is getting on one VLAN and it is up to the customer to assign their own intellectual property details.

Now that we're migrating to LWAPP I found the following-

-J' need to specify an IP address for each dynamic IP address for each WLAN

-J' need to specify a DHCP server for each dynamic IP address for each WLAN

Because I have no control of the PPE, I put in the details of false dynamic Interface but the correct address of the DHCP server.

It seems to work.

My questions are as follows:-

1 / is there a way I can simply place clients in a VIRTUAL LAN using LWAPP equipment so we didn't

get involved with Layer 3 configuration?

2 / I noticed when I got a DHCP address on a test laptop client, the DHCP server is 1.1.1.1. The only thing in the network that I know is the virtual IP address of the controller that is used for groups of mobility. Is this normal?

3/on the controller is the query DHCP has passed from the management or the dynamic interface?

3 / What is the IP address of the dynamic interface actually used for? At the beginning I forge the DHCP server use it as a source, but my setup works with a bogus address.

Welcome to the world of LWAPP! It's a pretty confusing to get, so I hope I can answer some of your questions.

Before directly answering your questions, I want to give you a little if a glimpse as to how traffic flows in LWAPP environment. All traffic LWAPP is placed in a tunnel to the controller (this is why LWAPP APs is no longer need to switch trunk links). Traffic is désencapsulé and sent to the appropriate interface switching environment (management or dynamic). The source address for traffic is changed to match the control interface for traffic must return to the controller in order to get the customer. For example, IP addresses are required on the controller.

1. think of the controller as a layer 3 switch that masks the identity of its customers. By sourcing all traffic from itself, it ensures that all traffic comes back to him, how it forwards traffic to the client via the LWAPP tunnel. False addresses you entered are actually being used on the network, then you will want to register those with the people in charge. If someone uses this address, it will eventually drop your wireless network.

2. it is normal. The virtual IP address is also used for DHCP service. Because the controller blocks all emissions, it must the DHCP proxy for each client, where the virtual IP address as well as the need to specify the address of the DHCP server.

3. I don't know what interface it gets passed on. Maybe someone else can answer.

4. see above for a description of what it is.

One last thing. What, exactly, are these fake addresses to which you refer? They are real addresses which comes with? They correspond to the VLAN that you places on? You give them suitable default gateways?

Don't forget that by configuring these, they are real addresses on your network that you should be able to ping. And yet once, if the address is duplicated on the network, it has the potential to get to the bottom of your wireless network.

Let me know if this can help, and if you have any other questions!

Jeff

Tags: Cisco Wireless

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