Product Documentation

FAQs on Advanced Expressions

Jun 13, 2016

Answers to questions which we frequently get from customers and support folks.

this is for version that is not released.

Q. Can I use a classic expression in an advanced expression?

A. Yes. To do this, <content to be rewritten from>


Q. Can I create an expression such that it can be reused in multiple occurrences?

A. Yes. You will have to create a named expression. To do this, <content to be rewritten from>


Q. Can expressions be used only in policies?

A. No. While expressions are most widely used in policies, there are some other cases where you can use them. <rewrite content from


Q. How to specify the character set in an expression?

A. <rewrite from first part of>


Q. How is a compound expression with different character sets processed?

A. <rewrite from second part of


Q. How can I specify the character set based on the oncoming traffic?

A. <rewrite from third part of>