Symptom
Client (EAP-SIM) connects on SSID
Layer 2 authentication is succesfull
Client gets IP
IP Traffic is hitting ISG
ISG is doing DHCP LeaseQuery and gets the following information
Mac address of client
DHCP option 82 (remote-id-tag)
Finally MAC-TAL request is send to backend system
After client roams, we don't see anymore the remote-id-tag in the DHCP/RADIUS debugs output
Conditions
subscribers roaming on the access network, while the ISG access interface is always the same
