14-18

User

Guide

for

the

Cisco

Application

Networking

Manager

5.2

OL-26572-01

Chapter

14

Configuring

Traffic

Policies

Setting

Match

Conditions

for

Class

Maps

Ta

b

l

e

14-7

Layer

7

HTTP

Deep

Packet

Inspection

Class

Map

Match

Conditions

Match

Condition

Description

Content

Specific

content

contained

within

the

HTTP

entity-body

that

is

to

be

used

for

protocol

inspection

decisions.

Do

the

following:

a.

In

the

Content

Expression

field,

enter

the

content

that

is

to

be

matched.

Valid

entries

are

alphanumeric

strings

from

1

to

255

characters.

b.

In

the

Content

Offset

(Bytes)

field,

enter

the

number

of

bytes

to

be

ignored

starting

with

the

first

byte

of

the

Message

body,

after

the

empty

line

(CR,LF,CR,LF)

between

the

headers

and

the

body

of

the

message.

Valid

entries

ar

e

fr

om

1

to

255.

Content

Length

Content

parse

l

ength

in

an

HTTP

message

that

is

t

o

be

use

d

for

protocol

inspection

decisions.

Do

the

following:

a.

In

the

Content

Length

Operator

field,

choose

the

operand

t

o

use

to

compare

content

l

ength

as

follows:

–

Equal

To—The

content

length

must

equal

the

number

in

the

Content

Length

Value

(Bytes)

fi

eld

.

–

Greater

Than—The

content

length

must

be

greater

than

the

number

in

the

Content

Length

Value

(Bytes)

field.

–

Less

Than—The

content

length

must

be

less

than

the

number

in

the

Content

Length

Value

(Bytes)

field.

–

Range—The

content

length

must

be

within

the

range

specified

in

the

Content

Length

Lower

Value

(Bytes)

field

and

the

Content

Length

Higher

Value

(Bytes)

field.

b.

Enter

values

to

apply

for

content

length

comparison

as

follows:

–

If

you

chose

Equal

To,

Greater

Than,

or

Less

Than

in

the

Content

Length

Operator

field,

the

Content

Length

Value

(Bytes)

field

appears.

In

the

Content

Length

Value

(Bytes)

field,

enter

the

number

of

bytes

for

comparison.

Valid

entries

are

from

0

to

4294967295.

–

If

you

chose

Range

in

t

he

Content

Length

Operator

field,

t

he

Content

Length

Lower

Value

(Bytes)

and

the

Content

Length

Higher

Value

(Bytes)

fields

appear.

Do

t

he

following:

1.

In

the

Content

Length

Lower

Value

(Bytes)

field,

enter

the

lowest

number

of

bytes

to

be

used

for

this

match

condition.

Valid

entries

are

from

0

to

4294967295.

The

number

in

this

field

must

be

less

than

the

number

entered

in

the

Content

Length

Higher

Value

(Bytes)

field.

2.

In

the

Content

Length

Higher

Value

(Bytes)

field,

enter

the

highest

number

of

bytes

to

be

used

for

this

match

condition.

Valid

entries

are

from

0

to

4294967295.

The

number

in

this

field

must

be

greater

than

the

number

entered

in

the

Content

Length

Lower

Value

(Bytes)

field.