where on the GUI of a AIR-CT5508-K9 with 126.96.36.199 can I configure the method of Ethernet Encapsulation Transform ?
Choose 802.1H or RFC1042 to set Ethernet encapsulation type. Data packets that are not 802.2 packets must be formatted to 802.2 with 802.1H or RFC1042. Cisco Aironet equipment defaults to using RFC1042 because it provides optimum interoperability.
802.1H - This setting provides optimum performance for Cisco Aironet wireless products.
RFC1042 - Use this setting to ensure interoperability with non-Cisco Aironet wireless equipment. RFC1042 does not provide the interoperability advantages of 802.1H but is used by other manufacturers of wireless equipment.