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Plain-language guides to online privacy and VPN technology, plus updates from VPNRice.

BGP Large Communities RFC 8195: Anycast Traffic Engineering

An architectural exploration of BGP Large Communities (RFC 8195), 12-byte route tagging, canonical ordering, and Anycast VPN traffic steering.

November 7, 2026 · 8 min read

Protocols
DNS Cookies RFC 7873 and RFC 9018: Stateless Request Authentication and Anycast Defense
November 7, 2026 · 7 min read
Protocols
Happy Eyeballs v2 RFC 8305: Dual-Stack Connection Racing in VPNs
November 7, 2026 · 8 min read
Protocols
IKEv2 Fragmentation RFC 7383: Resolving IPsec Handshake Drops and MTU Black Holes
November 7, 2026 · 7 min read
Protocols
IKEv2 MOBIKE RFC 4555: Tunnel Mobility and Return Routability
November 7, 2026 · 8 min read
Protocols
IKEv2 Seamless Rekeying RFC 7296: Make-Before-Break, Zero Loss & SA Rollover
November 7, 2026 · 8 min read
Protocols
IPsec Dead Peer Detection RFC 3706: Traffic Liveness, DPD Timers, and Tunnel Failover
November 7, 2026 · 8 min read
Protocols
IPsec NAT-T RFC 3948: UDP 4500 Encapsulation, Non-ESP Markers, and CGNAT Survival
November 7, 2026 · 8 min read
Security
IPsec Traffic Flow Confidentiality RFC 4303: Padding and Dummy Packets
November 7, 2026 · 7 min read
Protocols
QUIC Datagram RFC 9221: Unreliable Delivery and Congestion Control in Modern VPNs
November 7, 2026 · 7 min read