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McAfee® Network Security Platform 6.0 Preface Online Contact McAfee Technical Support http://mysupport.mcafee.com. Registered customers can obtain up-to-date documentation, technical bulletins, and quick tips on McAfee's 24x7 comprehensive KnowledgeBase. In addition, customers can also resolve technical issues with the online case submit, software downloads, and signature updates. Phone Technical Support is available 7:00 A.M. to 5:00 P.M. PST Monday-Friday. Extended 24x7 Technical Support is available for customers with Gold or Platinum service contracts. Global phone contact numbers can be found at McAfee Contact Information http://www.mcafee.com/us/about/contact/index.html page. Note: McAfee requires that you provide your GRANT ID and the serial number of your system when opening a ticket with Technical Support. You will be provided with a user name and password for the online case submission. viii

Section	Page
Preface	5
Introducing McAfee Network Security Platform	5
About this Guide	5
Conventions used in this guide	5
Related Documentation	6
Contacting Technical Support	7
What is inline mode?	9
Benefits of running inline	9
Inline deployment walkthrough	11
Determine your high availability strategy	12
Failover, or High-Availability	12
Fail-open or fail-closed functionality	13
Install and cable the Sensor	14
Cable the Fast Ethernet monitoring ports	15
Cable the Gigabit Ethernet monitoring ports	15
Cable a failover pair	15
Configure the Sensor monitoring ports	16
About Sensor port configuration	16
Failover: configure two Sensors in inline mode	19
Create a Failover Pair	19
Download configuration, signature set, and software updates to the Sensor	20
Configure policies	21
Tune your policies	21
About false positives and \	22
Incorrect identification	22
Correct identification; significance subject to usage policy	22
Correct identification; significance subject to user sensitivity (also known as noise)	22
Block attacks	24
Methods for blocking attacks	24
Block exploit traffic	24
How blocking works for exploit traffic	25
Verify dropped exploit attacks using the Threat Analyzer	25
Block DoS traffic	25
How blocking works for DoS traffic	26
Verify blocked DoS attacks using the Threat Analyzer	26
Drop DoS Attacks from the Threat Analyzer	26
Block using ACLs	26
Utilize traffic normalization	27
Blocking based on configured TCP & IP Settings	28
Blocking of IP-spoofed packets	28
Troubleshooting	29
Verify that traffic is flowing through the Sensor	29
Verify failover pair creation success	29
show	29
status	29
show failover-status	30
downloadstatus	30

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McAfee® Network Security Platform 6.0

Preface

Online

Contact McAfee Technical Support http://mysupport.mcafee.com.

Registered customers can obtain up-to-date documentation, technical bulletins, and quick

tips on McAfee's 24x7 comprehensive KnowledgeBase. In addition, customers can also

resolve technical issues with the online case submit, software downloads, and signature

updates.

Phone

Technical Support is available 7:00 A.M. to 5:00 P.M. PST Monday-Friday. Extended 24x7

Technical Support is available for customers with Gold or Platinum service contracts.

Global phone contact numbers can be found at McAfee Contact Information

http://www.mcafee.com/us/about/contact/index.html page.

Note:

McAfee requires that you provide your GRANT ID and the serial number of

your system when opening a ticket with Technical Support. You will be provided with

a user name and password for the online case submission.

viii