Infinite Jeffs
Infinite Jeffs is a book available on Amazon with a complex, unreadable content snippet. The details about the book's content or genre are not clear from the provided text. (amazon.com)
RFC8950: Announce IPv4 with an IPv6 next-hop
anuragbhatia.com92 points50 comments
RFC8950 enables announcing IPv4 prefixes whose BGP next-hop is an IPv6 address, allowing IPv4 routing to be carried over an IPv6 control plane without tunnels and while keeping IPv4 packets on the wire. This makes it practical to run an IPv6-only core while still providing IPv4 connectivity at the edges: large networks can avoid IPv4 interface and policy overhead in the backbone, transit providers can exchange IPv4 routes over IPv6 sessions, and IXPs can operate a single IPv6 LAN while distributing both address families. Functionally it extends MP-BGP to accept IPv6 next-hops for IPv4 routes; IPv6 reachability is resolved via NDP so IPv4 frames ride over Ethernet to the MAC discovered for that IPv6 next-hop. Many major router platforms and open-source suites already support it.
A hands-on lab demonstrates the concept with FRR in Containerlab: C1 is IPv6-only and advertises 10.0.0.0/24 over an IPv6 BGP session, R1-R2 form an IPv6-only core carrying IPv4 routes, and R3 peers IPv4-only with C2. C1 learns 100.64.0.0/24 with a link-local IPv6 next-hop and can traceroute to C2 through R1-R2-R3; R1 shows no IPv6 prefixes yet has IPv4 routes with IPv6 next-hops. The post includes topology YAML, command outputs and config pointers, illustrating practical deployment and vendor/OS support for production use.
Summary generated by AI from the linked article. hn.today is not affiliated with Hacker News or Y Combinator.
More in Other
Load-Bearing
Homeowners uncover hidden and questionable structural elements in their house, serving as a metaphor for AI and digital sovereignty. The piece critiques the rhetoric around digital sovereignty, comparing it to dubious building practices that may not truly support what they claim to. (pluralistic.net)
Trump Bought $5M in SpaceX Debt Two Days Before Space Transport Executive Order
Donald Trump purchased $5 million in SpaceX debt two days before the issuance of a Space Transportation Executive Order. The timing suggests a possible connection between the debt acquisition and the policy announcement. (techdirt.com)
Claude writes about 90% of Claude Code's code
Claude Code team automates most of its code review process, with about 90% of the code written by Claude itself. Automated checks catch routine mistakes early, reducing the need for extensive human review and increasing overall efficiency. (claude.dev)
Show HN: Stoke Money – Personal finance app built around a cash flow forecast
Stoke Money is a personal finance app that forecasts cash flow by analyzing recurring transactions and account balances without requiring budgeting. Users connect bank accounts or enter transactions manually, and the app projects daily balances and upcoming bills. (stoke.money)
Musk approached Trump to slow down Starlink in Ukraine
Elon Musk reportedly approached Donald Trump to request slowing down Starlink service in Ukraine. The move aimed to influence the ongoing conflict, according to sources. (telegraph.co.uk)