Last Modified: Jul 18, 2026
Affected Product(s):
F5OS F5OS, F5OS-A, F5OS-C, Velos
Known Affected Versions:
F5OS-A 1.8.0, F5OS-A 1.8.1, F5OS-A 1.8.2, F5OS-A 1.8.3, F5OS-A 1.8.4
Opened: Jul 10, 2024 Severity: 3-Major
F5OS tenants may generate an incorrect warning in the kernel log: warning kernel: mgmt: received packet on eth0 with own address as source address (addr:14:a9:d0:XX:XX:XX, vlan:0) This occurs without an actual MAC address conflict; no other systems or tenants are using the tenant's management MAC address.
Warning messages in the kernel log
- BIG-IP tenant running on F5OS systems - An external device that does one of the following: -- Generates ARP probes for addresses in the IPv4 loopback range (127.0.0.0/8) -- Generates neighbor discovery requests for the tenant's link-local IPv6 management IP (fe80::/64)
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