CCNA 3 Labs and Study Guide - BINARYBB.INFO – @jagalbraith

Figure 1-17 Summary Route Exercise 4
172.16.0.0/14
172.20.0.0/14
172.24.0.0/14
172.28.0.0/14
First IP 172.16.0.0 10101100.00010000.00000000.00000000
Last IP 172.31.255.255 10101100.00011111.11111111.11111111
Summary route 172.16.0.0/12
Your students may be interested to know that the summary route 172.16.0.0/12 is also the entire range of
Class B private IP addresses as defined by RFC 1918.
Summary Route Exercise 5
Chapter 1: Introduction to Classless Routing 27
R1 BBR
Summary Route
172.16.0.0/12
Referring to Figure 1-18, what summary route would R1 send to BBR for the four networks? Write your
answer in the space provided.