Controllerless Networks

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Occasional Contributor I

Client doesn't get IP Addres

I'm sure this has been asked many times before... I am using a 315 in a trial.  I have configured a wireless network to use the same vlan as my current Cisco APs.  The switchport that the AP is connected to is set to trunk and all uplinks to the Core are set to trunk as well.  When I try to log in, I am able to authenticate against the Cisco ACS (AAA/Radius), but the device cannot get an IP address.  I haven't seen anywhere to configure a DHCP server, which is a remote Windows DC... is this even necessary?  If so, where would I configure it?  If not, why can't I get an IP?

Thanks

Re: Client doesn't get IP Addres

The AP will require at least one untagged/native VLAN on that port. The AP cannot come up on a pure trunk port, there must be a native VLAN/untagged VLAN. 

Jerrod Howard
Sr. Technical Marketing Engineer
Occasional Contributor I

Re: Client doesn't get IP Addres

Edit:  I misread your response.  I will revisit and follow up.  Thanks

Occasional Contributor I

Re: Client doesn't get IP Addres

I've set the native vlan (1) on the switchport the AP is connected to, but can't connect to the SSID at all now.  Switchport is fa0/3 and vlan to be used for the SSID is 100:

 

Port Vlans allowed on trunk
Fa0/3 1-4094
Fa0/5 1-4094
Gi0/2 1-4094

Port Vlans allowed and active in management domain
Fa0/3 1,100,110,130,254
Fa0/5 1,100,110,130,254
Gi0/2 1,100,110,130,254

 

 

Re: Client doesn't get IP Addres

Is this an IAP-315 (instant) or an AP-315 (controller based)? Is the AP pulling an IP address from VLAN1 (you can check the console of the AP or the DHCP server for VLAN 1 looking for the ap mac in the least table)?

Jerrod Howard
Sr. Technical Marketing Engineer
Occasional Contributor I

Re: Client doesn't get IP Addres

It's an IAP-315.  We assigned a static IP address for management in VLAN 1 and it's communicating with no issues.  I can ping and WI into the IAP using this IP.  Should we try to pull a DHCP address for mgmt?

Occasional Contributor I

Re: Client doesn't get IP Addres

Name:
AHC-Test
Country code:
US
Virtual Controller IP:
172.16.4.30
VC IPv6 Address:
::
VC DNS:
0.0.0.0
IP Mode:
v4-only
Management:
Local
Master:
172.16.9.32
IPv6 Address:
--
NTP Server Via DHCP:
172.16.6.79
Uplink type:
Ethernet
Uplink status:
Up
Radius RFC3576 Listen Port:
3799

Re: Client doesn't get IP Addres

No, if you statically set the IP and you can reach the GUI and SSH into the IAP-315, then that part should be fine. So how are you configuring the SSIDs? Can you post a screenshot of the SSID settings under VLAN, where it has Client IP Assignment, Client VLAN Assignment, and VLAN ID? I assume you have DHCP running on those VLANs you want the SSIDs on?

Jerrod Howard
Sr. Technical Marketing Engineer
Occasional Contributor I

Re: Client doesn't get IP Addres

Yes Sir.  Please see attached.

Re: Client doesn't get IP Addres

So the client associates but cannot get an IP address? The SSID is not broadcasting at all? if you put a static IP on a client for that SSID can it ping it's gateway? Are there any RADIUS rules/derivation rules that would be trying to assign the client to a different VLAN (assuming this is a dot1x SSID)?

 

You may need to start with a TAC case.

 

Jerrod Howard
Sr. Technical Marketing Engineer
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