F5 is upgrading its customer support chat feature on My.F5.com. Chat support will be unavailable from 6am-10am PST on 1/20/26. Refer to K000159584 for details.

Forum Discussion

eesun_276598's avatar
eesun_276598
Icon for Cirrus rankCirrus
Nov 28, 2017

What is port lockdown?

Hi I am setting up F5 VE, and I meet "Port Lockdown" when setting up utility, external vlan interface for floating ip. What is port lockdown? how to configure it? Thank you  
application delivery
BIG-IP
crodriguez's avatar
crodriguez
Ret. Employee
Nov 28, 2017

Port Lockdown controls what types of connections will be allowed to the self IP based on protocol and port. You can find a great overview of Port Lockdown behavior here, along with recommendations on how best to use this feature.