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

Getting Started with iRules: Intro to Programming with Tcl

In this Getting Started with iRules series, We’ll cover topics ranging from this first installment, which includes some programming basics and concepts, up through F5 terminology and concepts, iRules...
Updated Oct 02, 2023
Version 2.0
100
devops
irules
series-irules-getting-started
JRahm's avatar
Icon for Admin rankAdmin
Christ Follower, Husband, Father, Technologist. I love community and I especially love THIS community. My background is networking, but I've dabbled in all the F5 iStuff, I'm a recovering Perl guy, and am very much a python enthusiast. Learning alongside all of you in this accelerating industry toward modern apps and architectures.
View Profile
J_Arner's avatar
J_Arner
Icon for Nimbostratus rankNimbostratus
Nov 11, 2022

Being new to F5 and iRules this series looks like a great place to start. That being said it took some work to sort out what order they were supposed to be in. Granted this could just be how I stumbled onto the series. Here is what I've worked out from the intros on each article:

iRules Getting started series in order?:
1. Getting Started with iRules: Intro to Programming
2. Getting Started with iRules: Technology & Terms
3. Getting Started with iRules: Basic Concepts
4. Getting Started with iRules: Events & Priorities
5. Getting Started with iRules: Variables
6. Getting Started with iRules: Delimiters
7. Getting Started with iRules: Control Structures & Operators
8. Getting Started with iRules: Logging & Comments
9. Getting Started with iRules: Directing Traffic