There are two steps that you must complete before you can begin each lab:
Cable your routers.
Load the configuration files found on the Cisco Press Web site (www.ciscopress.com/1587051044) onto your routers.
All the labs were tested on Cisco 2611 routers loaded with Cisco IOS Software Release 12.2(16a) Enterprise Plus IPSec 56.
To do these labs, you will need five routers with a mix of ISDN Basic Rate Interface (BRI), Fast Ethernet and serial interfaces (see lab diagrams), as well as an IOS image that supports VPDNs for L2F and L2TPv2, MPLS (and, optionally, MPLS traceroute), and IPSec.
The quickest way to find an IOS image that supports these ...