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2021 Cisco Systems, Inc. All rights reserved. Cisco Public 。 2021 Cisco Systems, Inc. All rights reserved. Cisco Public Testing the Network Layer ? Describe the role of ICMP in the TCP/IP suite and its impact on the IP protocol ITE PC Chapter 1 36 169。 2021 Cisco Systems, Inc. All rights reserved. Cisco Public Testing the Network Layer ? Use tracert/traceroute to observe the path between two devices as they municate and trace the steps of tracert/traceroute39。 2021 Cisco Systems, Inc. All rights reserved. Cisco Public Testing the Network Layer ? Use ping to verify that a local host can municate with a gateway across a local area work ITE PC Chapter 1 33 169。 2021 Cisco Systems, Inc. All rights reserved. Cisco Public Calculating Addresses ? Given a diagram of a multilayered work, address range, number of hosts in each work and the ranges for each work, create a work scheme that assigns addressing ranges to each work ITE PC Chapter 1 31 169。 2021 Cisco Systems, Inc. All rights reserved. Cisco Public Calculating Addresses ? Given a sub address and sub mask, calculate the work address, host addresses and broadcast address ITE PC Chapter 1 29 169。 2021 Cisco Systems, Inc. All rights reserved. Cisco Public Calculating Addresses ? Extract work addresses from host addresses using the sub mask ITE PC Chapter 1 27 169。 2021 Cisco Systems, Inc. All rights reserved. Cisco Public Determine the work portion of the host address and the role of the sub mask ? Observe the steps in the ANDing of an IPv4 host address and sub mask ITE PC Chapter 1 25 169。 2021 Cisco Systems, Inc. All rig