ADC

Classic expressions in advanced policy expressions

August 20, 2024

Contributed by:

C C S

Warning

Classic policy expressions are no longer supported from Citrix ADC 12.0 build 56.20 onwards and as an alternative, Citrix recommends you to use Advanced policies. For more information, see Configure advanced policy expressions: Get started.

Classic expressions describe basic characteristics of traffic. In some cases, you may want to use a classic expression in an Advanced policy expression are no longer supported from Citrix ADC 12.0 build 56.20 onwards and as an alternative, Citrix recommends you to use Advanced policies. For more information, see Advanced Policies topic. You can do so with the Advanced policy expression configuration tool. This can be helpful when manually migrating the older classic expressions to the Advanced policy.

Note that when you upgrade the Citrix ADC to version 9.0 or higher, Integrated Caching policies are automatically upgraded to Advanced policies, and the expressions in these policies are upgraded to the Advanced policies.

The following is the syntax for all Advanced policy expressions that use a classic expression:

SYS.EVAL_CLASSIC_EXPR(“expression”)

Note

The syntax and the metadata for the SYS.EVAL_CLASSIC_EXPR expression is getting deprecated. You can manually convert or use nspepi tool to convert the Classic expression to advanced expression.

Following are examples of the SYS.EVAL_CLASSIC_EXPR(“expression”) expression:

sys.eval_classic_expr("req.ssl.client.cipher.bits > 1000")
sys.eval_classic_expr("url contains abc")
sys.eval_classic_expr("req.ip.sourceip == 10.102.1.61 -netmask 255.255.255.255")
sys.eval_classic_expr("time >= *:30:00GMT")
sys.eval_classic_expr("e1 || e2")
sys.eval_classic_expr("req.http.urllen > 50")
sys.eval_classic_expr("dayofweek == wedGMT")
<!--NeedCopy-->

The official version of this content is in English. Some of the Cloud Software Group documentation content is machine translated for your convenience only. Cloud Software Group has no control over machine-translated content, which may contain errors, inaccuracies or unsuitable language. No warranty of any kind, either expressed or implied, is made as to the accuracy, reliability, suitability, or correctness of any translations made from the English original into any other language, or that your Cloud Software Group product or service conforms to any machine translated content, and any warranty provided under the applicable end user license agreement or terms of service, or any other agreement with Cloud Software Group, that the product or service conforms with any documentation shall not apply to the extent that such documentation has been machine translated. Cloud Software Group will not be held responsible for any damage or issues that may arise from using machine-translated content.

Classic expressions in advanced policy expressions

August 20, 2024

Contributed by:

C C S

August 20, 2024

Contributed by:

C C S

Classic expressions in advanced policy expressions

In this article