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IETF RFC 8539
[ACTIVE]

Softwire Provisioning Using DHCPv4 over DHCPv6

Metadata

Publisher
IETF
Doc Type
Standard
Pages
18
Abstract
DHCPv4 over DHCPv6 (RFC 7341) is a mechanism for dynamically configuring IPv4 for use as an over-the-top service in an IPv6-only network. Softwires are an example of such a service. For DHCPv4 over DHCPv6 (DHCP 4o6) to function with some IPv4-over-IPv6 softwire mechanisms and deployment scenarios (e.g., RFC 7596 or RFC 7597), the operator needs to know the IPv6 address that the client will use as the source of an IPv4-in-IPv6 softwire tunnel. This address, in conjunction with the client's IPv4 address, and (in some deployments) the Port Set ID are used to create a binding table entry in the operator's softwire tunnel concentrator. This memo defines a DHCPv6 option to convey IPv6 parameters for establishing the softwire tunnel and a DHCPv4 option (to be used only with DHCP 4o6) to communicate the source tunnel IPv6 address between the DHCP 4o6 client and server. It is designed to work in conjunction with the IPv4 address allocation process. "DHCPv6 Options for Configuration of Softwire Address and Port-Mapped Clients" (RFC 7598) describes a deterministic DHCPv6-based mechanism for provisioning softwires. This document updates RFC 7598, allowing OPTION_S46_BR (90) to be enumerated in the DHCPv6 client's Option Request Option (ORO) request and to appear directly within subsequent messages sent by the DHCPv6 server.
Publication Date
2019-03-01
Status Note
Proposed Standard
DOI
10.17487/RFC8539
Link
https://doi.org/10.17487/RFC8539
Author(s)
Ian Farrer
Qi Sun
Yong Cui
Linhui Sun
Keyword(s)
Provisioning, Softwire, DHCP 4o6, IPv4 Over IPv6, IPv4 Service Continuity, IPv4 Exhaustion, Lightweight 4over6
Latest version of IETF RFC 8539

Document Versions — IETF RFC 8539

  • ▶ IETF RFC 8539 (2019-03-01)
    THIS DOC [ACTIVE] [LATEST VERSION]

Normative Reference(s)

Bibliographic Reference(s)

  • IETF RFC 2827 [Active*]
  • RFC7596 — RFC7596 EXTERNAL
  • RFC7597 — RFC7597 EXTERNAL
  • RFC7618 — RFC7618 EXTERNAL
  • RFC7844 — RFC7844 EXTERNAL
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Amends:
IETF RFC 7598 [Active*]

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IETF RFC 8539, Softwire Provisioning Using DHCPv4 over DHCPv6. Available at https://doi.org/10.17487/RFC8539
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IETF RFC 8539, Softwire Provisioning Using DHCPv4 over DHCPv6. Available at https://doi.org/10.17487/RFC8539

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IETF RFC 8539, Softwire Provisioning Using DHCPv4 over DHCPv6. Available at https://doi.org/10.17487/RFC8539
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<span class="citation"><cite>IETF RFC 8539</cite>, Softwire Provisioning Using DHCPv4 over DHCPv6. Available at <a href="https://doi.org/10.17487/RFC8539" target="_blank" rel="noopener">https://doi.org/10.17487/RFC8539</a></span>

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IETF RFC 8539, Softwire Provisioning Using DHCPv4 over DHCPv6
doi: 10.17487/RFC8539
url: https://doi.org/10.17487/RFC8539
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<li>
<cite id="bib-rfc8539">IETF RFC 8539</cite>, Softwire Provisioning Using DHCPv4 over DHCPv6
<span class="doi">10.17487/RFC8539</span>
</li>