IPv6 dual-stack
Google and Netflix penalize providers without native IPv6. ISPs running only IPv4 + CGNAT fall behind — in perceived quality and in IPv4 cost.
What IPv6 is
IPv6 is the next-generation Internet Protocol, with 128-bit addresses (vs. IPv4's 32 bits). Solves IPv4 scarcity, simplifies configuration (SLAAC, no NAT), reduces latency on routes optimized by large platforms.
In Brazil, over 50% of Google and Netflix traffic is already IPv6 when subscriber supports it. Without IPv6, end customers fall back to IPv4+CGNAT, with more latency and jitter — and the ISP gets blamed for it.
What RASYS does with IPv6
- LACNIC pool request — /32 or /29 depending on ISP size. Technical justification and usage plan.
- Addressing plan — split per PoP, per customer type (residential, corporate, internal infra), with room for expansion.
- IPv6 BGP — sessions with upstreams and at IX.br, with RPKI also for IPv6.
- Dual-stack PPPoE — delivery of /56 or /60 per subscriber via DHCPv6-PD alongside IPv4. Works on Mikrotik, Huawei, Juniper, Cisco.
- Updated RADIUS — Framed-IPv6-Prefix, Delegated-IPv6-Prefix attributes in profiles. Integration with MK-Auth, IXC, SGP, Voalle.
- IPv6 DNS — recursor with AAAA, glue records in authoritative, reverse ip6.arpa.
- CGNAT reduction — as traffic migrates to IPv6, the IPv4 pool eases. In 1-2 years, you can postpone buying a new IPv4 block.
Equipment we work with
Huawei, Juniper, Cisco, Mikrotik routers. Huawei, ZTE, FiberHome, Datacom ONUs. FreeRADIUS, integrations with common Brazilian ISP managers.
When it makes sense to talk to us
You don't have a LACNIC ASN or IPv6 pool yet; paying a lot for IPv4 and want to reduce; customers complain about Netflix/games lagging; want to join IX.br with IPv6 too.
Talk to us. See also: CGNAT, BGP, IPv6 in glossary.