Operational Defect Database
BugZero found this defect 1063 days ago.
Data sources
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F5 | 881937
TMM and the kernel choose different VLANs as source IPs when using IPv6.
Last update date:
4/26/2024
Affected products:
BIG-IP
BIG-IP LTM
Affected releases:
13.1.0
13.1.0.1
13.1.0.2
13.1.0.3
13.1.0.4
13.1.0.5
13.1.0.6
13.1.0.7
13.1.0.8
13.1.1
13.1.1.2
13.1.1.3
Fixed releases:
No fixed releases provided.
Description:
Bug ID 881937: TMM and the kernel choose different VLANs as source IPs when using IPv6. ... Last Modified: Apr 26, 2024 ... Symptoms ... IPv6 traffic generated from the host, either from a host daemon, monitors, or from the command line, can use a MAC and IPv6 source address from different VLANs. ... Impact ... Traffic to the destination may fail because the incorrect source IPv6/MAC address is used, which might cause monitor traffic to fail. ... Conditions ... -- Multiple VLANs configured with IPv6 addresses. -- Multiple routes to the same destination, either the same or more specific, default routes, etc., that cover the traffic destination. -- Changes are made to routes that cause the traffic to the destination to shift from one VLAN and gateway to another. ... This can be typically observed with dynamic routing updates. - The db key snat.hosttraffic is set to disable. ... Workaround ... tmsh list sys db snat.hosttraffic tmsh modify sys db snat.hosttraffic value enable tmsh save ...
