Citrix Systems 9.2 manual Operates on the Vlan through which the current

214	Citrix NetScaler Policy Configuration and Reference Guide
		Expression Prefix	Notes and Links to Prefix and Applicable Operator
			Descriptions
		CLIENT.UDP.DNS.	“Expressions for TCP, UDP, and VLAN Data,” on
		[IS_AAAAREC IS_ANYREC	page 134
		IS_AREC IS_CNAMEREC	“Booleans in Compound Expressions,” on page 46
		IS_MXREC IS_NSREC
		IS_PTRREC IS_SOAREC
		IS_SRVREC]
		CLIENT.UDP.[DSTPORT	“Expressions for TCP, UDP, and VLAN Data,” on
		SRCPORT]	page 134
			“Compound Operations for Numbers,” on page 48
		CLIENT.VLAN	Operates on the VLAN through which the current
			packet entered the NetScaler. See the other
			CLIENT.VLAN prefixes in this table.
		CLIENT.VLAN.ID	“Expressions for TCP, UDP, and VLAN Data,” on
			page 134
			“Compound Operations for Numbers,” on page 48
		HTTP.REQ	Operates on HTTP requests. See the other
			HTTP.REQ prefixes in this table.
		HTTP.REQ.BODY(integer)	“Expression Prefixes for Text in HTTP Requests
			and Responses,” on page 67
			“Operations on Text,” on page 86
		HTTP.REQ.CACHE_CONTROL	“Prefixes for Cache-Control Headers,” on page 126
			“Operations for Cache-Control Headers,” on page
			126
		HTTP.REQ.CONTENT_LENGTH	“Expressions for Numeric HTTP Payload Data
			Other Than Dates,” on page 130
			“Compound Operations for Numbers,” on page 48
		HTTP.REQ.COOKIE	“Prefixes for HTTP Headers,” on page 116
			“Operations for HTTP Headers,” on page 122
			“Advanced Expressions: Evaluating Text,” on page
			63
		HTTP.REQ.DATE	“Format of Dates and Times in an Expression,” on
			page 96
			“Expressions for HTTP Request and Response
			Dates,” on page 110
			“Advanced Expressions: Evaluating Text,” on page
			63
			“Compound Operations for Numbers,” on page 48
			“Operations for HTTP Headers,” on page 122