MAC to IP resolution between Wireless Controller and NAC

[Joshua_Beddingf]

We are having trouble with guests completing the captive portal registration on the NAC. This is apparently a MAC-to-IP resolution issue between the EWC and the NAC. The subnet for the captive portal is 10.200.x.x and the DHCP is handled by the EWC's onboard DHCP for the topology.

I doing something wrong because the NAC is not resolving these addresses therfor they connot complete registration. The information from the switches resolves perfectly but not from this "guest" subnet. I am sure there is a check box somewhere I am missing, any help?

[Joshua_Beddingf]

The NAC Integration was already configured. Thanks.

[Ronald_Dvorak]

You'd set the NAC IP in the controller so DHCP information is provided to the NAC.
GUI > VNS > global > NAC integration

[Joshua_Beddingf]

The NAC portal is not in the same subnet - because there are two controllers each with a B@EWC topology - therefor two guest topology subnets.

I made two changes and am currently testing. I checked "Enable RADIUS Accounting" and added the NACs into the field. I also unchecked "Collect Accounting Information of Wireless Controller". The other screenshots showed no changes needed. This last screenshot did have some differences.

I am not seeing an increase in success for MAC-to-IP but the first device I tested for captive portal registration succeeded. I am doing more testing now.

[Ronald_Dvorak]

Is that a bridge@controller topology = the clients get a IP in the same subnet as the NAC portal ?

The unregistered role should look something like this....
allow DHCP, DNS, http and https to the portal, ARP, return dircetion and deny the rest.

Also check that...
https://gtacknowledge.extremenetworks.com/articles/Q_A/Why-the-redirection-to-portal-page-failed-for...

Is MAC auth also enabled ?

Cheers,
Ron