This feature is supported on Cisco Wave 1 APs in FlexConnect mode only.
Downgrading a Cisco WLC running a release with QR-Scan or WeChat specific configuration to an older release which does not support this feature leads to XML validation errors for the Layer 3 security type during the downgrade process.
The errors do not have any impact on the functioning of the Cisco WLC.
AUX口如果没有在LAG的情况下，是可以用做LAN口的！默认它是用来和主端口做LAG的。Cisco Aironet 1850, 2800, and 3800 Series APs' second Ethernet port, also called the AUX port（如下图中的④）, is used as a link aggregation (LAG) port, by default. It is possible to use this LAG port as a LAN port when...