Last Modified: Mar 11, 2026
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
17.5.1.3, 17.5.1.4, 17.5.1.5, 21.0.0, 21.0.0.1
Opened: Mar 10, 2026 Severity: 3-Major
MGMT kernel route gets overwritten by a TMM route with the same destination and netmask as the MGMT kernel route.
Mgmt route is no longer present in 'ip route' and gets overwritten by the TMM route created
1. VELOS tenant 2. mgmt route exists with a dest and netmask (ex. 192.0.2.0/24 dev mgmt proto kernel scope link src 192.0.2.24) 3. A TMM route is created with the same dest and netmask as the mgmt route: tmsh create net route test network 192.0.2.0/24 gw 198.51.100.1
Do not create a tmm route with the same destination and netmask as the mgmt route. Filter out the mgmt route from the receiving dynamic route
None