iRule Syntax Error???

you need to be connected to a BIGIP to be able to check the syntax.

 

 

Everything you do through the iRule editor is reported on the BIGIP you're connected to when you save the iRule

 

 

So when you manipulate an iRule it may be best i it's not used in production ^^

 

 

Or create a copy, work on the copy which is not assigned to a VS and check all your modification are fine and then do it on the real iRule