Security appliance firmware versions MX 16.11 changelog
Important notice
- This is an early-stage beta version for the MX 16 release. Due to this, we recommend taking additional caution before upgrading production appliances. Where applicable, MX 15 or MX 14 releases will provide a more stable upgrade alternative.
- While Meraki appliances have traditionally relied on UDP port 7351 for cloud communication and TCP ports 80 and 443 for backup communications, with MX 16 we are beginning a transition to using TCP port 443 as the primary means for cloud connectivity. In order to ensure proper connectivity to the Meraki cloud after this upgrade, please ensure that traffic using TCP port 443 between 209.206.48.0/20 is allowed through any firewalls that may be deployed upstream of your Meraki appliances.
- HTTP proxy, which allows default management traffic from MX appliances to be sent through a proxy, is deprecated on MX 16 and higher firmware versions.
Legacy products notice
- When configured for this version, Z1, MX60, MX60W, MX80, and MX90 devices will run MX 14.56.
Bug fixes
- Resolved an MX 16.9 regression that resulted in MX appliances not being able to properly utilize dashboard auto-enrolled certificates for AnyConnect VPN connections.
- Updated the NBAR traffic classification engine and protocol pack versions. This may improve stability and the accuracy of classifications in some cases.
- Updated the AnyConnect VPN service
- Corrected an issue that may have resulted in incorrect SNMP port information being provided in NetFlow export data.
- Fixed an issue that resulted in PoE power still being provided on disabled ports on MX68(W,CW) appliances.
Known issues
- After making some configuration changes on MX84 appliances, a brief period of packet loss may occur. This will affect all MX84 appliances on all MX firmware versions
- Some stability-impacting issues present in MX 14 that affect a small population of MX67(C,W) and MX68(W,CW) appliances still exist.
- Some stability-impacting issues present in MX 14 that affect a small population of Z3(C) appliances still exist.
- Please note that until certification has been obtained, the Z3C will not be supported on Verizon's network.
- MX67C, MX68CW, and Z3C units must be connected to the Meraki Dashboard initially to retrieve an update to allow for proper use of the integrated cellular connectivity. This is most likely to be an issue when bringing the units online for the very first time.
- On the MX67(C,W) and MX68(W,CW) platforms, when the MX is providing PoE to a connected device, this information will not be reflected on the Meraki Dashboard.
- Due to MX 15 regressions, USB cellular connectivity may be less reliable on some modems
- Due to an MX 15 regression, the management port on MX84 appliances does not provide access to the local status page
- Client traffic will be dropped by MX65(W), MX67(C,W), and MX68(W,CW) appliances if 1) The client is connected to a LAN port with 802.1X authentication enabled and 2) The VLAN ID of the port is configured to 16, 32, 48, 64, 80, 96, 112, 128, 144, 160, 176, 192, 208, 224, or 240.
- Significant performance regressions for VPN traffic may be observed on MX84 and MX100 appliances
- Group policies do not correctly apply to client devices
- Z3(C) appliances that are upgraded to MX 16 versions cannot directly downgrade to MX 14 releases. They must first downgrade to an MX 15 release.
- MX IDS security alerts are not detected for AnyConnect VPN traffic
- BGP-learned routes may not be properly reflected in the Route Table page on the Meraki Dashboard, despite BGP and packet routing operating correctly.
- There is an increased risk of encountering device stability issues on all platforms and across all configurations.
