438 Chapter A: Answers to the "Do I Know This Already?" Quizzes and Q&A Sections
9
When should NAT overlap be deployed?
It should be deployed in a network merger in which two entities are using the same IP
numbering scheme or two intranets are using the same numbering scheme.
10
What NAT translation is generally used for overlapped networks? Why?
Simple NAT is used because the administrator generally controls both networks that are
being translated.
11
What command would show which interfaces have been declared as outside or inside?
show ip nat statistics
12
Briefly describe the use of NAT TCP load distribution.
Load distribution advertises a single IP address and when it is referenced, it is translated
to a pool of addresses that represent a group of mirrored servers or devices.
13
List the four NAT address descriptions and provide a brief definition for each.
The NAT address descriptions are as follows:
Inside Local address classes are IP addresses that are unique to the host inside the
network, but not globally significant.
Inside Global address class are IP addresses that are assigned by the IANA or service
provider and that are legitimate in the global address space or Internet.
Outside Local address classes are IP addresses of a host on an outside network that is
presented to the inside network and that is legitimate to the local network.
Outside Global address classes are IP addresses that are globally routable on the Internet
space.
14
An inside local address is translated to what in a simple NAT translation?
It is translated to an Inside Global address.
15
What are the four types of NAT translations or configuration?
They are simple, overload, overlap, and TCP load distribution.
16
The port handler for the 700 series router allows which of the following?
a. up to 15 port-handler addresses
b. multiple ports for a single inside service
c. only one inside port per service supported
d. up to 400 ports maximum to be open for the port handler
e. up to 1500 ports
The answers are a and c.