Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

Lee_Sutcliffe_5's avatar
Lee_Sutcliffe_5
Icon for Nimbostratus rankNimbostratus
Jun 26, 2016

TCP Reset when VIP is Active/Enabled

Hi, I have a strange issue on LTM vCMP Guest 11.5.3 HF2 A VIP is enabled and active (Green) however inbound packets are reset by the F5. A TCPDump of the connection using the F5 wireshark plugi...
application delivery
LTM
Vijay_E's avatar
Vijay_E
Icon for Cirrus rankCirrus
Jun 26, 2016

I have worked with 11.5.3 HF2 on hardware BigIP F5 and didn't run into any such issues. Did you check the /var/log/ltm to see if you can identify any reason for the VIP being seen as "Disabled" ? Any other users active in the system during the time the VIP was disabled ?