Electronically enhanced - The accompanying CD-ROM includes tutorial software that features video with illustrated examples and tutorials by the authors. Additionally, the CCIEPREP.COM Web site will offer instant updates. The most thorough coverage including: Subnetting & IP Addressing. NAT (network address translation) and the HSRP (hot standby router protocol). How to use Cisco supported router commands like CIDR Blocks (class internet domain routing,) and VLSM (variable length subnet masking). All of the common IP addressing protocols. Plus, 15 detailed router configurations. Useful for all Cisco Certification preparation, CCIE, CCNA, etc. - The book includes Cisco oriented questions at the end of every chapter. This is a fundamental topic in administering Cisco routers.