IPv6 Explained: SLAAC and Neighbor Discovery
IPv6 replaces ARP with NDP and lets devices configure addresses without a server. Here's how Neighbor Discovery, SLAAC, and DHCPv6 work together.
10 min
ipv6
Recent Posts
IPv6 Explained: Addressing
IPv6 replaces 32-bit addresses with 128-bit ones — but the change goes deeper than size. Here's how IPv6 addresses are structured, what the different types mean, and how subnetting works.
7 min
ipv6
Encrypted DNS: DoH, DoT, and DoQ Explained
Unencrypted DNS leaks every domain you visit to your ISP and any on-path observer. Here's how DNS-over-TLS, DNS-over-HTTPS, and DNS-over-QUIC fix that — and how they differ.
6 min
dns
XGS-PON Explained
XGS-PON is the 10-gigabit symmetric fiber standard behind most new FTTH deployments. This post covers the full stack — physical architecture, wavelength multiplexing, upstream TDMA, PLOAM registration, GEM port encapsulation, T-CONT QoS, and dynamic bandwidth allocation.
7 min
fiber
pon
isp
WiFi Explained: Transmit Power, Channel Width, and Channel Selection
Three settings that most people leave on auto — and shouldn't. Here's what transmit power, channel width, and channel selection actually do, and how they interact.
7 min
wifi
wifi7