Operational Defect Database

BugZero found this defect 661 days ago.

| 3F159E27

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.

Last update date:

8/31/2022

Affected products:

Meraki MX Security & SD-WAN

Affected releases:

18.107.9

18.104

18.107.3

18.107.4

18.106

18.105

18.107.6

18.102

18.107.7

18.107.10

18.103

18.106.1

Fixed releases:

No fixed releases provided.

Description:

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.

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