Appendix B. Answers to Review Questions

Chapter 1

1.

What is the main characteristic that separates a GNE from an ENE?

A GNE is an NE that has the LAN interface active and can forward or relay traffic between the LAN interface and DCC interfaces. An ENE can only forward traffic between DCC interfaces.

2.

What is the purpose of a default router in ONS IP configuration?

The default router address is used to forward traffic on the local NE to destinations that are not listed in the routing table.

3.

What are some of the requirements to display and log in NEs on the same topology map?

The launch NE must have a CTC version that is compatible with other NEs, and all the NEs must share the same authentication information. All NEs are either IP-reachable by ...

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