GCIA · Question #80
What are the advantages of stateless autoconfigration in IPv6? Each correct answer represents a part of the solution. Choose three.
The correct answer is A. Ease of use. C. No server is needed for stateless autoconfigration. D. No host configuration is necessary.. IPv6 Stateless Address Autoconfiguration (SLAAC) allows hosts to self-configure without a server or manual intervention, but it explicitly does not provide authentication of which systems may receive configuration data.
Question
What are the advantages of stateless autoconfigration in IPv6? Each correct answer represents a part of the solution. Choose three.
Options
- AEase of use.
- BIt provides basic authentication to determine which systems can receive configuration data
- CNo server is needed for stateless autoconfigration.
- DNo host configuration is necessary.
How the community answered
(33 responses)- A79% (26)
- B21% (7)
Why each option
IPv6 Stateless Address Autoconfiguration (SLAAC) allows hosts to self-configure without a server or manual intervention, but it explicitly does not provide authentication of which systems may receive configuration data.
SLAAC is easy to use because a host automatically constructs its own IPv6 address by combining the network prefix from a router's Router Advertisement with a locally generated interface identifier, requiring no user or administrator action for basic network connectivity. This plug-and-play behavior significantly reduces operational overhead compared to manually assigning addresses or deploying DHCPv6.
Stateless autoconfiguration provides no authentication mechanism to control which systems may receive or use configuration data - the 'stateless' designation means no server maintains records of address assignments, and preventing unauthorized autoconfiguration requires a separate protocol such as Secure Neighbor Discovery (SEND) defined in RFC 3971.
No dedicated configuration server is needed for SLAAC because the required network prefix and other parameters are distributed by routers in periodic or solicited Router Advertisement messages, eliminating the cost and complexity of deploying and maintaining a DHCPv6 server infrastructure.
No manual host configuration is necessary because each device autonomously derives its address, learns its default gateway, and discovers other network parameters directly from Router Advertisements, making the process entirely self-contained on the host.
Concept tested: IPv6 SLAAC advantages and absence of authentication
Source: https://www.rfc-editor.org/rfc/rfc4862
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