System information

100 Chapter 3: Defending the Perimeter
Figure 3-3 SDM Home Screen
Some newer Cisco routers come with SDM preinstalled, but SDM needs to be installed on
other supported platforms. Go to http://www.cisco.com/pcgi-bin/tablebuild.pl/sdm to
download the current version of SDM and its release notes. Cisco SDM offers the following
benefits:
■ SDM’s smart wizards use Cisco TAC best-practice recommendations for a variety of
configuration scenarios.
■ SDM intelligently determines an appropriate security configuration based on what it
learns about a router’s configuration (for example, a router’s interfaces, NAT
configuration, and existing security configuration).
■ SDM supports multiple security features such as wizard-based VPN configuration,
router security auditing, and One-Step Lockdown configuration.
■ SDM, which is supported in Cisco IOS 12.2(11)T6 and later, does not impact a router’s
DRAM or CPU.