A new candidate appliance firmware version is available. Firmware MX 18.106 was just released on 2023-02-23 and has been in this firmware category since 2023-02-23.
Corrected an issue that resulted in intrusion detection rule update events not being logged to the event log.
Reduced the amount of time before a URL classification request performed by the content filtering service would be considered to have failed. This may resolve latency caused by content filtering in cases when classification requests failed and needed to be retried on a consistent basis.
Resolved an issue that could result in connectivity checks to Meraki cloud infrastructure that are performed prior to allowing an upgrade to be scheduled to erroneously fail.
Stability improvements for MX64(W), MX65(W), MX67(C,W), and MX68(W,CW), MX75, MX84, MX85, and MX100 appliances.
Corrected a rare issue that could result in Z3(C) appliances incorrectly discarding traffic.
Fixed a rare issue that could result in the WAN interfaces for MX appliances incorrectly transitioning to a down state for a brief period of time.
Resolved an error that resulted in the VPN status page reporting the incorrect status for VPN connections to non-Meraki VPN peers formed using an FQDN instead of an IP address.
Corrected a rare issue that could result in MX84, MX100, and vMX appliances being unresponsive after rebooting.
Performance improvements for VPN traffic for Z3(C), MX84, and MX100 appliances.
General performance improvements. These are most likely to be noticed in environments where MX appliances are processing a high volume of packets.
Fixed an issue of incorrect fragmentation handling for IPv6 packets.
Resolved an issue where an MX appliance could stop responding to LAN traffic when a frame was received with a source MAC address matching the MX’s own LAN port. This issue was most likely to occur in complex switching topologies, or when there were forwarding issues within the network.
Corrected an MX 18.1.X regression that could result in incorrect power LED behavior during the bootup process for MX65(W) appliances.
Fixed a rare issue that could result in disruptions to DHCP in High Availability configurations.
Legacy products notice
When configured for this version, Z1 and MX80 devices will run MX 14.56.
When configured for this version, MX400 and MX600 devices will run MX 16.16.6.
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
Due to an MX 15 regression, the management port on MX84 appliances does not provide access to the local status page
When SGT is enabled on MX84 appliances, any packet larger than 1440 bytes will be dropped. Due to this, we recommend that the SGT feature only be enabled in lab or other non-production environments on MX84 appliances.
MX appliances will now properly validate that DBD packets conform to the appropriate MTU size. If the MX’s OSPF peer has an improper MTU configured, it may cause the OSPF adjacency to fail to properly form. The updated behavior properly conforms to RFC. Please ensure these settings are properly configured on any MX’s OSPF peers to avoid disruption after upgrading to MX 18.1.X.
Wireless clients may experience degraded performance for HTTP and HTTPS traffic when content filtering is enabled.
There may be an increased risk of encountering device stability and performance issues.
Other
Added firmware support for reporting when the AnyConnect VPN service starts or stops in the Event Log.
Minor improvements to the reporting of flow data via syslog.
Slightly reduced the power usage of MX64(W) and MX65(W) appliances. Power savings range from approximately 0.5W to 1.25W.
MX appliances will now use 64 as the CurHopLimit value in IPv6 Router Advertisement messages.
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