Flashcards
IPv6
Cards in this deck (30)
- 1An IPv6 address is _____ bits long.128
- 2IPv6 addresses are broken down into ___ groups of ___ bits each, with each group separated by a colon.8,16
- 3The ___ bit "octets" are represented in _________.16, hexadecimal.
- 4Define the commands needed to statically configure an IPv6 unicast address.“conf t”
“int (interface)”
“ipv6 address (address)(mask)”
“no shut" - 5What are the commands to verify IPv6 on an interface (excluding pings)?“Show ipv6 int brief”
“Show ipv6 int (interface)”
“Show run int (interface)” - 6What is the command to configure a DHCP IPv6 address?“ipv6 (address) dhcp”
- 7There are a total of ___ possible network bits.128
- 8What is a trick that can be utilised with zeros in an IPv6 address, and how many times can it be used?A colon can be placed between multiple sets of zeros, ex. 0000.0000.0000 = ::
- 9The command "show int (int) | inc bia" performs what action for the user?Shows the burned in address on a specific interface (MAC address).
- 10What command can be used to change the MAC address on an interface?"MAC address (address)"
- 11What is the most necessary command to perform before exiting an interface?"no shut"
- 12What does an IPv6 unicast address look like?fc00::/7
- 13Describe a unique local address.They are equivalent to a private IPv4 address, and are only routable on a local network.
- 14What does a IPv6 link local address start with?FE80
- 15What is a link local address?A link local address is an IPv6 address assigned to an interface by the machine itself. It is only valid on the configured interface, and the goal of these addresses is to ensure connectivity in a given network.
- 16IPv6 does not use ARP, but it does use the equivalent called...Neighbor Discovery Protocol
- 17When will a host read a Neighbor Solicitation message?When the last 24 bits of their MAC address matches the last 24 bits of the senders MAC address.
- 18Functions of NDP are...Neighbor Advertisement
Neighbor Solicitation - 19IPv6 link local addresses use two primary protocols to communicate. These two protocols are...Duplicate Address Detection
Multicast Listener Discovery Protocol - 20What is the command to add a IPv6 address to an interface?"ipv6 add address (address)(mask) eui-64"
- 21What is an IPv6 anycast address? Where does a message go when sent to this address?An address that is assigned to multiple interfaces (normally on different devices). A message will be sent to the nearest interface with that address according to the routers routing table.
- 22Why would you configure an anycast address?To create redundancy.
- 23What is the syntax to configure an anycast address?“int (int)”
“ipv6 add (address)”
“ipv6 ospf () area ()”
“ipv6 address (address)(mask) anycast”
“end” - 24What is the verification command used to trace the path of a packet?"traceroute (address)"
- 25Which portion of an IPv6 address is the host portion (by default)?The last 24 bits.
- 26Describe an IPv6 multicast address.An address that is designated for a subset or group of devices.
- 27What are the requirements to be part of a multicast group?The last 24 bits of the MAC address must be the same. The last 24 bits of a multicast address are by default FF02::1
- 28Under what circumstances will a host process a package in a multicast group?If the last 32 bits of the destination MAC address match the last 32 bits of the Host ID or Group ID.
- 29Explain how Modified EUI-64 works (what ID and type of address does it create, and how does it do it):EUI-64 modifies the 7th bit and inverts the bit. 16 bits of FFFE are then injected into the address, this is now the host ID. This is how the link local address is created.
- 30What does EUI-64 stand for?Extended Unique Identifier-64
Information
- Description
- CCNA CCNA 2020 Flashcards on IPv6, created by Aliyah Merritt on 31/05/2020.
- Created by
- Aliyah Merritt
- Views
- 0
- Rating