Cisco Systems OL-4015-08 Network Admission Control

CHAPTER
22-21
Cisco Router and Security Device Manager Version 2.2 User’s Guide
OL-4015-08
22
Network Admission Control
Network Admission Control (NAC) reduces the infection of data networks from
computer viruses by assessing the health of client workstations, helping to ensure
that they receive the latest available virus signature updates, and controlling their
access to the network.
NAC works with anti-virus software to assess the condition of a client, called the
client’s posture, before allowing it access to the network.Before granting it access
to a data network, NAC ensures that a network client has an up-to-date virus
signature set and that it has not been infected. If the client requires a signature
update, NAC directs it to complete the update. If the client has been compromised
or if a virus outbreak is occurring on the network, NAC places the client into a
quarantined network segment until disinfection is completed.
For more information on NAC, click the following links:
•http://www.cisco.com/en/US/netsol/ns466/networking_solutions_package.htm
l
•http://www.cisco.com/application/pdf/en/us/guest/netsol/ns466/c654/cdccont_
0900aecd80217e26.pdf
Create NAC Tab
You must use the Create NAC tab and NAC wizard to create a NAC policy and
associate it with an interface. After you create the NAC policy, you can edit it by
clicking Edit NAC and choosing it in the policy list.