The following Cisco Aironet Series APs are supported in the Cisco Mobility Express network:

Note	APs listed under primary APs can also function as subordinate APs. The software on the APs listed under primary APs can be converted from Cisco Mobility Express to CAPWAP Lightweight AP software and vice versa. For ordering information, visit the Cisco Aironet Access Points Ordering Guide

Depending on the primary AP in the Cisco Mobility Express network, the maximum number of APs and clients supported varies. For more information about the APs supported in the Cisco Mobility Express network, see Supported Cisco Access Points.

Note	If there are more than 25 Access Points in a Mobility Express network, the primary AP(running the Wireless LAN controller function) can service a maximum of 20 clients. This limit only applies to primary AP and not any other Access Point in the Mobility Express network.

• Support for mDNS Policy.

• Support for Cisco Umbrella.

• Support for Authentication Caching on Cisco Mobility Express

• Support for DNS ACL rules on Cisco Mobility Express.

• Support for TLS client that allows the Cisco Mobility Express to form a secure tunnel to the TLS gateway residing in the Central Site.

• Support for the Cisco Aironet 4800 Series access points

• Conversion of AP type default configuration from CAPWAP to Cisco Mobility Express

• SFTP support for AP conversion from CAPWAP to Cisco Mobility Express image

• DHCP option 43 support for conversion of AP from Cisco Mobility Express to CAPWAP image

• Option to configure virtual router identifier (VRID) via CLI

• Support for Ethernet over GRE (EoGRE) tunneling

• Efficient AP join

• Option to configure RFID tracking via CLI. With Cisco Aironet 4800, 3800, and 2800 Series APs, you can track up to 2000 active RFIDs. With all the other applicable Cisco APs, you can track up to 1000 active RFIDs.

• Support for HTTPs connection to Cisco DNA Center

• AP does not reboot when it joins an AP group or the AP group's RF profile is modified.

• GUI enhancements with the following provisions:

  • SFTP domain name support

  • Schedule WLAN

  • Optimized roaming (only in Expert View)

  • Wireless Service Assurance enhancements like multicast to unicast

  • Bonjour chromecast support (also configurable via CLI)

• CLI enhancements

  • The command show client detail client_mac_addr is enhanced to display the method by which the client is authenticated.

    Note	When the AP is in local mode, it syncs with local switching client data. In this mode, the User Authenticated by field displays Local Database as the type of authentication.

For Cisco Mobility Express solution software compatibility information, see the Cisco Wireless Solutions Software Compatibility Matrix.

The following table lists the Cisco Wireless Release 8.8.100.0, 8.8.111.0, 8.8.120.0, 8.8.125.0, and 8.8.130.0 software for Cisco Aironet APs that are Cisco Mobility Express capable (primary APs).

Note

After updating the Cisco Mobility Express software, clear your browser cache before continuing use. Do either of the following before using the Cisco Mobility Express GUI after the software update: Restart your browser and log in to the GUI. Log out from the GUI and login again. Choose the appropriate AP software based on the following: Cisco Mobility Express software to be used for converting the AP from the unified wireless network CAPWAP lightweight AP to a Cisco Mobility Express-capable AP (primary AP) AP software image bundle to be used either for upgrading the Cisco Mobility Express software on the primary AP or for updating the software on the subordinate APs or both

Prior to ordering these Cisco Aironet APs, visit the Cisco Aironet Access Points Ordering Guide.

For software installation instructions, see the “Getting Started” section in the Cisco Mobility Express User Guide for Release 8.8 .

Note

If you fail to upgrade the AP2800 series, AP3800 series, or AP4800 series to Cisco Mobility Express version 8.8, you must first have an interim upgrade to Cisco Mobility Express 8.5.140.0, before upgrading to Cisco Mobility Express 8.8. Alternatively, you can first load the 8.8 CAPWAP version (non-ME version) as the interim version before upgrading to Cisco Mobility Express 8.8.

Known Limitations

• Internet Group Management Protocol (IGMP)v3 is not supported on Cisco Aironet Wave 2 APs.

• If you have IPv6 flex ACLs configured in the Cisco Mobility Express network, you may face issues downgrading the Cisco Mobility Express software image from Cisco Wireless Release 8.7.102.0 or newer to Cisco Wireless Release 8.6.101.0 or older.

  This issue can be resolved by removing all IPv6 ACLs as these are not supported in Cisco Mobility Express, Release 8.6.101.0 or older.

• If the Cisco AP has a Cisco Mobility Express software image, it will not support link aggregation groups (LAG) even if it is 802.3ad (LACP)-compliant.

• Over-the-DS fast BSS transition and fast transition PSK authentication are not supported.

• Starting from Cisco Mobility Express Release 8.8.111.0, when you set the Security Type for a WLAN to Central Web Auth, the required ACLs are no longer auto-generated. You must create the ACLs manually.

• When downgrading from Cisco Mobility Express AP version 8.8 or 8.9 to version 8.5 with the Cisco Catalyst 3850 switch, the Cisco AP stops responding and fails to come up as a controller. This issue occurs only when downgrading the AP. The AP upgrades without any issues.

• An AP image primary requires a minimum memory of 210 MB to create an image. If the memory is below the image creation threshold, an invalid primary status is sent to the controller. To avoid this issue, the joining AP must stream the image if there are no other available primarys. Another alternative is to add an external AP of the same type, which would have more memory when compared to the internal AP.

• In Cisco Mobility Express, the show boot command displays information that is obtained from the AP. Only when the controller is upgraded and rebooted, the show boot command points to the upgraded version. If the controller is upgraded and not rebooted, the show boot command variables are not populated. It will still show the old image as the default image. This is because, unlike AireOS, Cisco Mobility Express updates its data structures from the information obtained from the internal AP.

• The Cisco Aironet 1852 Access Point does not join Cisco Mobility Express 1562, as the primary Cisco Mobility Express1562 does not include the image required for the Cisco Aironet 1852 AP.

• If you continue to perform an upgrade even after all the APs have successfully completed upgrading, the following message is displayed "Transfer cannot happen because download is already Initiated! Abort before initiating the download again".

Caveats

Caveats describe unexpected behavior in the Cisco Mobility Express network solution. Severity 1 caveats are the most serious while Severity 2 caveats are less serious. Severity 3 caveats are moderately serious and only select severity 3 caveats are listed here.

The Resolved Caveats and Open Caveats sections list the caveats in the Cisco Mobility Express network solution for Cisco Wireless Release 8.8.100.0, 8.8.111.0, 8.8.120.0, and 8.8.125.0 . The following information is provided for each caveat:

• Identifier—Each caveat is assigned a unique identifier (ID) with a pattern of CSCxxNNNNN, where x is any letter (a-z) and N is any number (0-9). These IDs are frequently referenced in Cisco documentation, such as Security Advisories, Field Notices and other Cisco support documents. Technical Assistance Center (TAC) engineers or other Cisco staff can also provide you with the ID for a specific caveat.

• Description—A description of what is observed when the caveat occurs.