Forum Discussion

awan_m's avatar
awan_m
Icon for Cirrostratus rankCirrostratus
Aug 16, 2026

Per ip connection limit on virtual server

i want to apply per ip connection limit on a virtual server . i have AFM provisioned on the F5 . the requirement is that,  example - any client IP address can open TOTAL max of 50 connections . mea...
application delivery
security
mwolf's avatar
mwolf
Icon for Altocumulus rankAltocumulus
Aug 17, 2026

awan_m​ 

AFM is for filtering traffic. It's not for counting the number of connections to a virtual server.  

I would first try using LTM's rate limiting with the "Per Virtual Server and Source Address" mode. With a source mask of 32 for IPv4 and 128 for IPv6. The "Using the Configuration utility to configure the connection rate limit" in article K44660650 provides a procedure to configure the rate limiting.  

K44660650: Mitigating UDP flood using the virtual server connection rate limit

In the event that the rate limiting on the virtual does not meet your needs. You could create an iRule for the behavoir you require. 

 

All the Best,

Matthew Wolf