A good way to prevent someone from sniffing the traffic would be to segment the network the AP's sit in from the one users attach to on the wire. Simple ACL or firewall rules would prevent users from being able to sniff anything on the management vla...

Not that I'm aware of but as the portal itself is recommended as using SSL and any credentials sent to said portal encapsulated within that encryption, what is the requirement driving the need for L2 encryption to ISE for guest portal services?In mos...