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Clarification on IPv6 Sub-Assignments |
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ID: |
AFPUB-2018-V6-002-DRAFT03 |
Date Submitted: |
11th November 2018 |
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Author: |
Jordi Palet Martinez jordi.palet at theipv6company.com The IPv6 Company |
Version: |
3.0 |
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Obsoletes: |
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Amends: |
CPM art 6.8 |
1.0 Summary of the problem being addressed by this proposal
When the policy was drafted, the concept of assignments/sub-assignments did not consider a practice very common in IPv4 which is replicated and even amplified in IPv6: the use of IP addresses for point-to-point links or VPNs.
In IPv4, typically, this is not a problem because the usage of NAT.
In the case of IPv6, instead of unique addresses, the use of unique prefixes (/64) is increasingly common.
Likewise, the policy failed to consider the use of IP addresses in hotspots (when is not an ISP, for example, associations or community networks), or the use of IP addresses by guests or employees in Bring Your Own Device (BYOD) and many other similar cases.
One more case is when an end-user contracts a third-party to do some services in their own network and they need to deploy their own devices, even servers, network equipment, etc. For example, security surveillance services may require that the contractor provides their own cameras, recording system, even their own firewall and/or router for a dedicated VPN, etc. Of course, in many cases, this surveillance system may need to use the addressing space of the end-user.
Finally, the IETF has recently approved the use of a unique /64 prefix per interface/host (RFC8273) instead of a unique address. This, for example, allows users to connect to a hotspot, receive a /64 such that they are “isolated” from other users (for reasons of security, regulatory requirements, etc.) and they can also use multiple virtual machines on their devices with a unique address for each one (within the same /64).
2.0 Summary of how this proposal addresses the problem
Section 2.6 (General Definitions/Assignment), explicitly prohibits such assignments, stating that “Assignments... are not to be sub-assigned to other parties”.
This proposal clarifies this situation in this regard and better define the concept, particularly considering new uses of IPv6 (RFC 8273), by means of new text at the end of whatever text is available at the IPv6 PI assignments policy.
It also clarifies that the usage of sub-assignments in ISPs, data centers and similar cases is not allowed.
3.0 Proposal
New Paragraph at the end of 6.8 of the CPM, as follows:
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Current |
Proposed |
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6.8 PI Assignments (at the end of the section, precedent text unchanged by this proposal)
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6.8 PI Assignments (at the end of the section, precedent text unchanged by this proposal)
It is allowed to use the assigned addresses for: a) the assignment holder network b) third party devices operating within that infrastructure c) interconnections It will be considered a sub-assignment and consequently it is not allowed, to use the assigned addresses for providing services to customers (such an ISP), data-center or similar cases. |
4.0 Revision History
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Date |
Details |
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20 March 2018 |
Version 1: AFPUB-2018-V6-002-DRAFT01 Initial Draft Posted to rpd |
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22 August 2018 |
Version 2: AFPUB-2018-V6-002-DRAFT02
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11 November 2018 |
Version 3: AFPUB-2018-V6-002-DRAFT03
Added the following text to 6.8:
It is allowed to use the assigned addresses for: a) the assignment holder network b) third party devices operating within that infrastructure c) interconnections
It will be considered a sub-assignment and consequently it is not allowed, to use the assigned addresses for providing services to customers (such an ISP), data-center or similar cases.
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5.0 References
A similar proposal is being discussed in APNIC, LACNIC and RIPE.