CISCO 3 - Module 6

What type of NAT address is the IP address of PC1? (192.168.10.10)

Inside Local

Into what type of address has the IPv4 address for PC1 been translate?(209.165.200.266)

Inside global

What type of NAT address is the IP address of the Web Server? (209.165.201.10)

Outside global

A side effect of NAT is that it hides the inside local IP address of a host from the outside network?

True

With NAT overload each inside local IP address is translated to a unique inside global IP address on a one-for-one basis.

False

The use of NAT makes end-to-end traceability between source and destination easier.

False

Tunneling protocols such as IPsec do not work well through NAT.

True

Which 2 statements accurately describe an advantage or a disadvantage when deploying NAT for IPv4 in a network?

NAT provides a solution to slow down the IPv4 address depletion

NAT introduces problems for some applications that require end-to-end connectivity

A network administrator wants to examine the active NAT translations on a border router. Which command would perform the task?

Router#show ip nat translations

What are 2 tasks to perform when configuring static NAT?

Create a mapping between the inside local and inside global addresses

Identify the participating interfaces as inside or outside interfaces

What is a disadvantage of NAT?

There is no end-to-end addressing

What is one advantage of using NAT at the edge of the network?

Changing ISPs is simpler because the devices on the inside network do not have to be configured w/ new addresses when the outside address changes.

What benefit does NAT64 provide?

It allows sites to connect IPv6 hosts to an IPv4 by translating the IPv6 addresses to IPv4 addresses.

What address translation is performed by static NAT?

An inside local address is translated to a specified inside global address.

Using NAT terminology, what is the address of the source host on a private network as seen from inside the network?

Inside local

Which statement accurately describes dynamic NAT?

It provides an automated mapping of inside local to inside global IP addresses

Why is NAT not needed in IPv6?

Any host or user can get a public IPv6 network address because the number of available IPv6 addresses is extremely large.

A company designs its network so that the PCs in the internal network are assigned IP addresses from DHCP servers, and the packets that are sent to the Internet are translated through a NAT-enabled router. What type of NAT enables the router to populate the translation table from a pool of unique public addresses, as the PCs send packets through the router to the Internet?

Dynamic NAT

What is a security feature of using NAT on a network?

Allows internal IP addresses to be concealed from external users

When dynamic NAT without overloading is being used, what happens if seven users attempt to access a public server on the Internet when only six addresses are available in the NAT pool?

The request to the server for the 7th user fails

A company has been assigned the 203.0.113.0/27 block of IP addresses by the ISP. The company has over 6000 internal devices. What type of NAT would be most appropriate for the employee workstations of the company?

Dynamic NAT overload using the pool of addresses

Which version of NAT allows many hosts inside a private network to simultaneously use a single inside global address for connecting to the Internet?

PAT