Access points use the IAPP protocol to communicate and pass information about the handovers of associated WLAN clients which are roaming. Access points regularly send out multicast announcements to inform the devices about the BSSIDs and IP addresses of the other access points. A roaming WLAN client initiates a handover by informing a new access point about its former AP. The access point uses the information supplied by the IAPP protocol to inform the former access point to remove the WLAN client from its list of associated clients.
Where an access point supports multiple ARF networks, the IAPP announcements are transmitted on all ARF networks. To limit these multicasts to one particular ARF network, it is possible to define an IAPP IP network.
WEBconfig: LCOS menu tree / Setup / WLAN
- IAPP-IP network
Here you select the ARF network which is to be used as the IAPP-IP network.
Possible values:
- Selection from the list of ARF networks defined in the device; max. 16 alphanumerical characters
- Blank
- Blank: If no IAPP-IP network is defined, IAPP announcements are transmitted on all of the defined ARF networks.