Feature #15808
closed
PREF64 support in Router Advertisements
100%
Description
Please implement RFC8781 Discovering PREF64 in Router Advertisements (IPv6-Mostly Networks) to support IPv6-Mostly Networks
- This is implemented in radvd v2.20_rc1 https://github.com/radvd-project/radvd/blob/master/CHANGES
- radvd needs to be upgraded and a option to configure this in the UI
https://datatracker.ietf.org/doc/html/rfc8781
https://www.ietf.org/archive/id/draft-link-v6ops-6mops-01.html
In a nutshell, an IPv6-mostly network is very much similar to a dual-stack one with two additional key elements:
Upon connecting to an IPv6-mostly network segment, an endpoint configures its IP stack based on its capabilities:
- The network provides NAT64 ([RFC6146] ) functionality ([RFC6146]), enabling IPv6-only clients to communicate with IPv4-only destinations.
- The DHCPv4 infrastructure processing DHCPv4 Option 108 as per [RFC8925].
- IPv4-Only Endpoint: Acquires an IPv4 address through DHCPv4.
- Dual-Stack Endpoint (Not IPv6-Only Capable): Configures IPv6 addresses via Stateless Address Autoconfiguration (SLAAC) and, optionally, DHCPv6. Additionally, it obtains an IPv4 address via DHCPv4 or by other means.
- IPv6-only capable endpoint configures its IPv6 addresses and, while performing DHCPv4, includes option 108 ([RFC8925] ) into the Parameter Request List. The DHCP server returns the option and, as per [RFC8925] , the endpoint forgoes requesting an IPv4 address, remaining in IPv6-only mode.
An IPv6-mostly network segment can support a mix of IPv4-only, dual-stack, and IPv6-only devices. IPv6-only endpoints utilize the network-provided NAT64 along with DNS64 services to reach IPv4-only destinations.
NAT64 can be done externally, but PREF64 and DHCPv4 option 108 has to be in pfSense.
Updated by Bart Schapendonk 3 months ago
radvd 2.20 has been released with PREF64 support https://github.com/radvd-project/radvd/releases
2024/12/31 Release v2.20
build: annotated/signed tags need a tweak to verify correctly
build: need awk for newer autoconf
build: verify tag earlier
build: drop sha1, insecure
build: use BSD-style checksum tags
build: make sign & verify tighter
build: cleanup old tarballs first
docs: document formal release process
ci: Updated FreeBSD workflow to fix the boot loop issue.
ci: Removed Ubuntu 18.04 build.
docs: Expand on RELEASE-PROCESS.md
ci: Updated the checkout action version.
fix: Prevent null de-reference when using poll in main_loop
ci: use improved buildroot images.
fix(netlink): cleanup interfaces upon removal
fix: Add the socket option IPV6_MULTICAST_LOOP to prevent the interface from autoconfiguring using RA messages sent by itself.
ci: Added Ubuntu 24.04.
ci: Also use ubuntu-latest for the FreeBSD build
ci: Use latest v1 action in all cases
feat: implement setup_allrouters_membership() et al for FreeBSD #145
chore: remove unused 'total_seen_options' variable
feat: Change the Prefix field of the Route Information Option to be variable-length.
test: add more RDNSS testing for PR#193
feat: Support more addresses in RDNSS section
feat: improve warning about long RA options
fix: do not die on long DNSSL option
test: support older libcheck for ubuntu20.04
chore: document more testcases
chore: make RDNSS/DNSSL documentation and logic consistent
doc: update AUTHORS in manpage
doc: fix truncated sentence about VRRP
feat: handle long options better
fix: ensure send_ra_forall racount only increments for non-unicast
ci: radvd-autogen updates for ubuntu20.04
build: missing files from packages
2023/11/16 Release v2.20_rc1
UnrestrictedUnicast option (respond to RS with configured clients)
Ignore clients w/ ! prefix
Build improvement, inc. containers for reproducible packaging
Captive-Portal API (RFC8910)
Default lifetime changes for RDNSS & DNSSL (RFC8106)
Prefix lifetime based on kernel lifetimes
Netlink fixes for simultaneous POLLERR & POLLIN
pwname fixes for root (Fixes #165)
Secure ND timestamp support for radvdump (RFC3971)
RemoveAdvOnExit for zero lifetime adv on exit
NAT64/pref64 support (RFC6052, RFC8781)
Case-insensitive config options
AutoIgnorePrefix
Fix net.ipv6.conf.all.forwarding cease_adv bug
Updated by Marcos M 3 months ago
- Status changed from Waiting on Merge to Feedback
- % Done changed from 0 to 100
Applied in changeset 5d3bf10347ebee416770437cf5163b5e143f8511.