Citrix Systems Network Router 9.2 User Manual

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Describes expression syntax and semantics, and briefly introduces how to 
configure expressions and policies.

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expressions that you configure when you want to operate on text (for 
example, the body of an HTTP POST request or the contents of a user 
certificate).

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 Describes expressions that you configure when you want to 

operate on any type of numeric data (for example, the length of a URL, a 
client's IP address, or the date and time that an HTTP request was sent).

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Describes expressions for parsing IP and IPv6 addresses, MAC addresses, 
and data that is specific to HTTP and TCP traffic.

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how to configure expressions for SSL traffic and client certificates, for 
example, how to retrieve the expiration date of a certificate or the certificate 
issuer.

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 Describes expressions that you can use to work with any other client- 

or server-related data not discussed in other chapters. 

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 Describes expressions that you can use to parse structured text 

and convert it into different formats.

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Describes policies that you can configure to control the flow of traffic to 
different destinations, primarily for the purpose of throttling excessive 
traffic. 

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 Describes expressions that you can use to send HTTP 

requests to external applications.

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 Provides 

details on how to configure the simpler policies and expressions known as 
classic policies and classic expressions.

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 A reference for classic and 

advanced expression arguments.

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Examples of classic and advanced expressions and policies, in both quick 
reference and tutorial format, that you can customize for your own use.