2 adv. wlan, Adv. wlan, It infrastructure rap/rac1000 – ADS-TEC RAP/RAC1000 User Manual User Manual

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IT Infrastructure RAP/RAC1000

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8.7.2

WLAN

IAPP
IAPP is used for exchanging control and additional information between Access Points
(APs). An AP, for instance sends an IAPP notification to all other APs in the network if a
client logs in. Then, as a result, all other APs can remove this client from their table of

logged in clients. The LLC Xid packets, also originally defined in IAPP, are always
transmitted if a client logs in, independent on this setting.

Enable IAPP
Enables IAPP broadcasts and receiving of IAPP messages on APs.

Enable IAPP client update
Enables a specific ads-tec extension of the IAPP protocol. In this case, 802.11 beacon data
will additionally be sent as an IAPP broadcast via Ethernet in 1 second intervals. Ads-tec

clients are able to receive this information and will in this way learn the state and the
current channel of all APs, even if they might not be visible per radio yet. This information

is primarily required for fast roaming processes in order to automatically process the
channel resolution in the 5 GHz band. Therefore, this option is only useful if fast roaming is
applied.

Note:
The IAPP (Internet Access Point Protocol) was incomplete when it was defined as 802.11f

by the IEEE; this draft was later withdrawn. As a result, IAPP is no standardised protocol.