Technical Tip: 'Physical Address Not Found' error in captive portal

[cmaheu]

Description
After entering valid username and password while registering via the captive portal, the user is presented with the following message:

“Registration Failed

Physical Address Not Found”

The appliance performs an IP to MAC lookup (L3 Poll) to register the MAC address associated to the IP address established in the web session.  If the appliance is unable to determine the MAC address of the host, registration will fail.

Scope
Version: 8.x, 9.x

Solution

1.  Add a Layer 3 device whose ARP cache contains the IP and MAC of the host.  Device must be modeled and a member of the IP -> MAC device group.

2.  Verify communication between the appliance and L3 data

For more details see L3 Polling in the 8.x or 9.x Administration Guide.

3. Verify that NAT is not being used from the "isolation" network to the "isolation" interface (eth1)