ICND1 Part 3: IP Addressing and Subnetting, Downloadable Version, 2nd Edition

Part III: IP Addressing and Subnetting

Lab 4, “Finding the Subnet Number”–This lab shows how to find the subnet number in

which an IP address resides. It emphasizes the use of a process shown in the Cisco Press

Exam Certification Guides, a process which shows how to find the answers to subnetting

questions without using any binary math.

Lab 5, “Finding the Broadcast Address and Range of Addresses in a Subnet”–This lab

shows how to find a subnet’s broadcast address and the range of valid addresses in the subnet

given the subnet number. This video lab continues the same problem shown in ICND1 video

lab 4, again using a decimal-only process from the Cisco Press Exam Certification Guides.

Lab 6, “Finding All Subnets of a Network with Less than 8 Subnet Bits”–This lab shows

how to find all the subnet numbers of a single classful network, assuming a single subnet

mask is used throughout the classful network. This video emphasizes the use of yet another

decimal-only process shown in the Cisco Press Exam Certification Guides. This video uses

the same network and subnet mask used in labs 4 and 5.

Lab 7, “IP Subnet Design and Implementation”–This lab explains subnetting from a

design perspective, examining how to determine the number of required subnets and reviewing

how to find all subnets of a network using a particular static-length mask.

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