It's only ARP. It works. So how much can it really matter? The answer lies beyond ARP itself, in the IPv4 layer cake that grew around it over four decades. The IPv4 internet is not going away in bounded time, and nobody should pretend otherwise.

Who runs the hidden infrastructure behind secure Internet routing? An internship report from SIDN Labs looks beyond the RIRs at the independently operated RPKI publication servers helping to secure BGP.

IPv6-only networks often still depend on IPv4 subnets and ARP. This article introduces an IETF proposal to eliminate both, allowing IPv4 to operate as a service over IPv6-only infrastructure without translation or tunnelling.

Why do live sports, ticket sales, and public service launches sometimes resemble DDoS attacks? This article explores how synchronised user behaviour turns Internet traffic into a physical phenomenon that places real pressure on network infrastructure.

On 3-4 June 2026, we convened in Riga, Latvia for RIPE NCC Days Baltics. 76 participants from nine countries participated in sessions covering important topics in network operations, with a special focus on resilience for a region that has seen repeated network disruptions in recent years.