Dear IPv6 WG list members,
IANA hast allocated some new special purpose IPv6 prefixes in the last months
[1]. Two have already been allocated before the last RIPE meeting and one has
been allocated yesterday. This may need filtering at the network edges.
3fff::/20 -> Documentation
Abstract from the the IETF document [2]:
"The document describes the reservation of an additional IPv6 address prefix
for use in documentation. This update to RFC 3849 expands on the existing
2001:db8::/32 address block with the reservation of an additional, larger
prefix. The addition of a /20 allows documented examples to more closely
reflect a broader range of realistic, current deployment scenarios and more
closely aligns with contemporary allocation models for large networks."
5f00::/16 -> Segment Routing (SRv6) SIDs
Abstract from the the IETF document [3]:
"The data plane for Segment Routing over IPv6 (SRv6) is built using IPv6 as
the underlying forwarding plane. Due to this underlying use of IPv6, Segment
Identifiers (SIDs) used by SRv6 can resemble IPv6 addresses and behave like
them while exhibiting slightly different behaviors in some situations. This
document explores the characteristics of SRv6 SIDs and focuses on the
relationship of SRv6 SIDs to the IPv6 Addressing Architecture. This document
allocates and makes a dedicated prefix available for SRv6 SIDs."
2001:1::3/128 -> DNS-SD Service Registration Protocol Anycast Address
Abstract from the the IETF document [4]:
"The Service Registration Protocol for DNS-Based Service Discovery uses the
standard DNS Update mechanism to enable DNS-Based Service Discovery using only
unicast packets. This makes it possible to deploy DNS Service Discovery
without multicast, which greatly improves scalability and improves performance
on networks where multicast service is not an optimal choice, particularly
IEEE 802.11 (Wi-Fi) and IEEE 802.15.4 networks. DNS-SD Service registration
uses public keys and SIG(0) to allow services to defend their registrations."
[1]
https://www.iana.org/assignments/iana-ipv6-special-registry/iana-ipv6-special-registry.xhtml
[2] https://datatracker.ietf.org/doc/draft-ietf-v6ops-rfc3849-update/05/
[3] https://datatracker.ietf.org/doc/draft-ietf-6man-sids/06/
[4] https://datatracker.ietf.org/doc/draft-ietf-dnssd-srp/25/
Kind regards
Chris
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