Cisco PIX 525 Spezifikationen PDF herunterladen (Seite 381)

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Cisco Security Appliance Command Line Configuration Guide

OL-6721-01

Chapter 21 Applying Application Layer Protocol Inspection

Managing SNMP Inspection

Step 5 Define the configuration of the SNMP map by entering the following command:

hostname(config-snmp-map)# deny version

version

Replace version with one or more SNMP versions that you want to restrict, for example:

hostname(config-inbound_ftp)# deny version 1

Step 6 Name the policy map by entering the following command:

hostname(config)# policy-map

policy_map_name

Replace policy_map_name with the name of the policy map, as in the following example:

hostname(config)# policy-map inbound_policy

The CLI enters the policy map configuration mode and the prompt changes accordingly, as follows:

hostname(config-pmap)#

Step 7 Specify the traffic class defined in Step 1 to be included in the policy map by entering the following

command:

hostname(config-pmap)# class

class_map_name

For example, the following command assigns the snmp_port traffic class to the current policy map.

hostname(config-pmap)# class snmp_port

The CLI enters the policy map class configuration mode and the prompt changes accordingly, as follows:

hostname(config-pmap-c)#

Step 8 To apply strict inspection to the traffic that matches the criteria defined in the traffic class enter the

following command:

hostname(config-pmap-c)# inspect snmp snmp_map_name

Replace snmp_map_name with the SNMP map that you want to use. For example, the following

command causes the security appliance to use the SNMP map created in the previous steps:

For example,

hostname(config-pmap-c)# inspect snmp inbound_snmp

Step 9 Return to policy map configuration mode by entering the following command:

hostname(config-pmap-c)# exit

hostname(config-pmap)#

Step 10 Return to global configuration mode by entering the following command:

hostname(config-pmap)# exit

hostname(config)#

Step 11 Apply the policy map globally or to a specific interface by entering the following command:

hostname(config)# service-policy

policy_map_name

[global | interface

interface_ID

Replace policy_map_name with the policy map you configured in Step 5, and identify all the interfaces

with the global option or a specific interface using the name assigned with the name-if command.

For example, the following command applies the inbound_policy to the outside interface:

hostname(config)# service-policy inbound_policy interface outside

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