8.3: DHCPv6 operation steps

Question 1

Although DHCPv6 is similar to DHCPv4 in what it provides, the two protocols are___ of each other.

Answer 1

independent

Question 2

DHCPv6 is defined in ___.

Answer 2

RFC 3315

Question 3

The host begins the DHCPv6 client/server communications after stateless DHCPv6 or stateful DHCPv6 is indicated in the ___.

Answer 3

RA

Question 4

Server to client DHCPv6 messages use UDP destination port ___while client to server DHCPv6 messages use UDP destination port ___.

Answer 4

546
547

Question 5

The steps for DHCPv6 operations are as follows

Answer 5

1. The host sends an RS message.
2. The router responds with an RA message.
3. The host sends a DHCPv6 SOLICIT message.
   The DHCPv6 server responds with an ADVERTISE message.
   The host responds to the DHCPv6 server.
   The DHCPv6 server sends a REPLY message.

Question 6

The steps for DHCPv6 operations are as follows

Answer 6

1. The host sends an RS message.
2. The router responds with an RA message.
3. The host sends a DHCPv6 SOLICIT message.
   The DHCPv6 server responds with an ADVERTISE message.
   The host responds to the DHCPv6 server.
   The DHCPv6 server sends a REPLY message.

Question 7

DHCPv6 OPERATIONS STEPS
In step 5, the host responds to DHCPv6 server.
The PC1 response depends in whether it is using _____

Answer 7

stateful or stateless

Question 8

DHCPv6 OPERATIONS STEPS
In step 5, the host responds to DHCPv6 server.
The client creates an IPv6 address using the prefix in the RA message and a self-generated Interface ID. The client then sends a___ message to the DHCPv6 server requesting additional configuration parameters (e.g., DNS server address).

Answer 8

Stateless DHCPv6 Client
DHCPv6 INFORMATION-REQUEST

Question 9

DHCPv6 OPERATIONS STEPS
In step 5, the host responds to DHCPv6 server
The client sends a _____ message to the DHCPv6 server to obtain all necessary IPv6 configuration parameters.

Answer 9

Stateful DHCPv6 client
DHCPv6 REQUEST

Question 10

The stateless DHCPv6 server is only providing information that is ___ for all devices on the network such as the IPv6 address of a DNS server.

Answer 10

identical

Question 11

The stateless DHCPv6 server is only providing configuration parameters for ___, not IPv6 addresses.

Answer 11

clients

Question 12

Stateless DHCPv6 is enabled on a router interface using the ____interface configuration command. This sets the O flag to __.

Answer 12

ipv6 nd other-config-flag
1

Question 13

You can use the no ___ to reset the interface to the default SLAAC only option (O flag = 0).

Answer 13

no ipv6 nd other-config-flag

Question 14

In this case, the RA message tells the client to obtain all addressing information from a stateful DHCPv6 server, except the ____ which is the source IPv6 link-local address of the RA.

Answer 14

default gateway address

Question 15

This is known as stateful DHCPv6 because the DHCPv6 server maintains ___

Answer 15

IPv6 state information