11. Exploring the Packet Delivery Process

Question 1

Name the Two essential services provided by ARP.

Answer 1

Address Resolution and Caching

Question 2

What is “Address Resolution” as it applies to ARP?

Answer 2

Mapping IPV4 address to MAC addresses on a network.

Question 3

What is “Caching” as it applies to ARP?

Answer 3

Locally storing MAC addresses that are learned via ARP.

Question 4

What is the Layer 2 broadcast address?

Answer 4

FF:FF:FF:FF:FF:FF

Question 5

What is the command on a Windows PC to show the ARP table?

Answer 5

arp -a

Question 6

What is the command on a Windows PC to show the ARP table but limit the output to a single interface?

Answer 6

arp -a -N (ip_address)
example:
C:> arp -a -N 10.0.0.1

Question 7

What is the command to show the ARP table on a Cisco IOS Router?

Answer 7

show ip arp
or
show arp

Question 8

What is the command to inventory IPV4 address and MAC addresses on the interfaces of PCs, Routers, and Servers?

Answer 8

show interfaces

Question 9

What command allows you to observe the behavior of the arp process?

Answer 9

Router# debug arp

Question 10

What is the command to disable debugging

Answer 10

Router# undebug all