iRule to Limit Connections from Source IP to Destination IP

What are you actually trying to accomplish? Do you want to limit the number of connections per client per second (a rate)? Or do you want to limit the number of concurrent connections per client over a time interval? Do you want/need to send an HTTP response if a client makes an HTTP request while over the limit? Do you want to allow clients who already have established a "session" with the virtual server to be able to exceed the limit and track this with a session cookie?

 

 

You'll want to avoid using global variables as they're not CMP compatible. You'll also want to not use a static variable to track a value that changes as static variables aren't synchronized across TMMs.

 

 

https://devcentral.f5.com/wiki/iRules.CMPCompatibility.ashx

 

https://devcentral.f5.com/wiki/iRules.static.ashx

 

 

Aaron