Lesson 9 Flashcards
(26 cards)
– Used for NIC to NIC communications
on the same Ethernet network.
Layer 2 physical address (the MAC address)
Used to send the packet from the source
device to the destination device.
Layer 3 logical address (the IP address)
What are the two primary addresses assigned to a device on an Ethernet LAN
Layer 2 Physical Address (MAC Adderss)
Layer 3 Logical Address (IP Address)
When the destination IP address is on a remote network, the destination MAC address is
that of the ____
default gateway
____ is used by IPv4 to associate the IPv4 address of a device with the MAC address
of the device NIC.
ARP
_____ is used by IPv6 to associate the IPv6 address of a device with the MAC
address of the device NIC
- ICMPv6
A device uses ____ to determine the
destination MAC address of a local
device when it knows its IPv4 address
ARP
What are the two basic functions of ARP
- Resolving IPv4 addresses to MAC addresses
- Maintaining an ARP table of IPv4 to MAC address mappings
What is the meaning of ARP?
Address Resolution Protocol
To send a frame, a device will search its ARP table for a ______ and a
corresponding MAC address
destination IPv4 address
If the packet’s destination IPv4 address is on the same network, the device will
search the ARP ____
table for the destination IPv4 address
If the destination IPv4 address is on a different network, the device will search the
ARP table for the ____
IPv4 address of the default gateway.
If there is no ARP table entry is found, then the device____
sends an ARP request.
Entries in the ARP table are not _____ when an ARP cache
timer expires after a specified period of time.
permanent and are removed
The duration of the ARP cache timer differs depending on the _____
operating system
ARP table entries can also be removed manually by the _____
administrator
The _____ command displays the ARP table on a Cisco router
show ip arp
The _____ command displays the ARP table on a Windows 10 PC.
arp –a
Excessive ARP broadcasts can cause some _____ in performance.
reduction
ARP replies can be _____ by a threat actor to perform an ARP poisoning attack.
spoofed
IPv6 Neighbor Discovery (ND) protocol provides:
- Address resolution
- Router discovery
- Redirection services
ICMPv6 Neighbor Solicitation (NS) and Neighbor Advertisement (NA)
messages are used for _____ messaging such as address
resolution.
device-to-device
ICMTPv6 Router Solicitation (RS) and Router Advertisement (RA) messages
are used for messaging _____ for router discovery.
between devices and routers
IPv6 devices use ____ to resolve
the MAC address of a known
IPv6 address.
ND (Neighbor Discovery)
