How to configure cookie persistence with ASP.NET session cookie without iRule

Hi,

In fact you don't need any irule for your need, only point the cookie must be in the correct format for F5 to use it. Which is detailed in:

https://support.f5.com/csp/article/K83419154

For the HTTP Cookie Passive method to succeed, a cookie must come from the web server with the appropriate server information in the cookie. Using the BIG-IP Configuration utility, you generate a template for the cookie string with encoding automatically added, and then edit the template to create the actual cookie.

Additional point, F5 recommends that you use the HTTP Cookie Rewrite method instead of the HTTP Cookie Passive method when possible.

let me know if you need more details.

regards,