Blue Coat Systems Time Clock Proxy SG Manuale Utente

ProxySG Content Policy Language Guide

122

request.x_header.header_name.address=

Tests if the specified request header can be parsed as an IP address; otherwise, false. If parsing 
succeeds, then the IP address extracted from the header is tested against the specified IP address. The 
expression can include an IP address or subnet, or the label of a subnet definition block. This condition 
is intended for use with custom headers other than 

X-Forwarded-For

 and 

Client-IP 

headers; for 

these, use 

request.header.header_name.address=

 so that typing any errors can be caught at 

compile time. 

Replaces: 

request_x_header.header_name.address=

request.x_header.header_name.address= ip_address|subnet|subnet_label 

where:

•

—Any HTTP header, including custom headers.

•

—IP address; for example, 

10.1.198.0

.

•

—A subnet mask; for example, 

10.1.198.0/24

.

•

—Label of a subnet definition block that binds a number of IP addresses or subnets.

•

Use  in 

<Cache>

 and 

<Proxy>

 layers.

; deny access if the request’s custom header “Local” has the value 10.1.198.0

deny request.x_header.Local.address=10.1.198.0 

•

Actions: 

append( )

, 

delete( )

, 

delete_matching( )

, 

rewrite( )

, 

set( )

 

•

Conditions: 

request.header.header_name=

, 

request.header.header_name.address=

, 

response.x_header.header_name=

•

Definitions: 

define subnet