Chapter 18 Configuring the ASA 5500-X IPS SSP

allocate-ips

allocate-ips

To allocate an IPS virtual sensor to a security context if you have the ASA 5500-X IPS SSP installed, use the allocate-ipscommand in context configuration mode. To remove a virtual sensor from a context, use the no form of this command.

allocate-ipssensor_name [mapped_name] [default]

no allocate-ips sensor_name [mapped_name] [default]

Syntax Description

 

default

(Optional) Sets one sensor per context as the default sensor; if the context

 

 

 

configuration does not specify a sensor name, the context uses this default

 

 

 

sensor. You can only configure one default sensor per context. If you want to

 

 

 

change the default sensor, enter the no allocate-ipssensor_name command

 

 

 

to remove the current default sensor before you allocate a new default sensor.

 

 

 

If you do not specify a sensor as the default, and the context configuration

 

 

 

does not include a sensor name, then traffic uses the default sensor on the

 

 

 

ASA 5500-X IPS SSP.

 

 

 

 

 

 

mapped_name

(Optional) Sets a mapped name as an alias for the sensor name that can be

 

 

 

used within the context instead of the actual sensor name. If you do not

 

 

 

specify a mapped name, the sensor name is used within the context. For

 

 

 

security purposes, you might not want the context administrator to know

 

 

 

which sensors are being used by the context. Or you might want to genericize

 

 

 

the context configuration. For example, if you want all contexts to use

 

 

 

sensors called “sensor1” and “sensor2,” then you can map the “highsec” and

 

 

 

“lowsec” senors to sensor1 and sensor2 in context A, but map the “medsec”

 

 

 

and “lowsec” sensors to sensor1 and sensor2 in context B.

 

 

 

 

 

 

sensor_name

Sets the sensor name configured on the ASA 5500-X IPS SSP. To view the

 

 

 

sensors that are configured on the ASA 5500-X IPS SSP, enter allocate-ips

 

 

 

?. All available sensors are listed. You can also enter the show ips command.

 

 

 

In the system execution space, the show ips command lists all available

 

 

 

sensors; if you enter it in the context, it shows the sensors you already

 

 

 

assigned to the context. If you specify a sensor name that does not yet exist

 

 

 

on the ASA 5500-X IPS SSP, you get an error, but the allocate-ipscommand

 

 

 

is entered as is. Until you create a sensor of that name on the

 

 

 

ASA 5500-X IPS SSP, the context assumes the sensor is down.

 

 

 

 

 

 

 

Defaults

 

No default behavior or values.

Command Modes The following table shows the modes in which you can enter the command:

 

 

 

 

 

Firewall Mode

Security Context

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Multiple

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Command Mode

Routed

Transparent

Single

Context

System

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Context configuration

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2

 

 

 

 

 

 

 

 

 

 

 

 

18-22

 

 

 

 

 

 

 

OL-29168-01

 

 

 

 

 

 

 

 

 

 

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Cisco Systems IPS4510K9 manual Allocate-ips, Defaults, Firewall Mode Security Context Multiple Command Mode Routed, 18-22

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