About HanoiLUG

HanoiLUG.org was home to the Hanoi GNU/Linux Users Group from 2011 to 2016: a small Vietnamese FOSS community trading practical Linux and networking knowledge. The domain is now an independent reference for the small but stubbornly recurring problem of getting into your home router: default IP addresses, default usernames and passwords, ISP-specific gateway quirks, and the networking concepts that make those things make sense. The name stayed because the topic is native LUG territory (home routers are where most people first hit DHCP, NAT, and RFC 1918), and the editorial standards are the same the original community would have expected: primary sources first, no recycled content, no affiliate noise. The open web's coverage of router admin had rotted into half-correct ad-stuffed listicles, and a router admin panel is the kind of thing where "half-correct" actively wastes your afternoon.

What the site covers

Four interlocking sections, each grounded in primary sources:

  • IP address directory. Every default gateway address in common use (192.168.1.1, 192.168.0.1, 10.0.0.1, 192.168.1.254, and 80+ others), with the brands that ship it, the credentials those brands use, and the RFC 1918 background. Built for the moment when someone hands you a router and you need to know which address actually loads the admin panel.
  • Router brand directory. 40+ manufacturers covering retail and ISP-supplied hardware. Each brand page documents the default IP, admin URL (where one exists), credentials across firmware generations, and the brand-specific quirks (Linksys's blank-username WRT line, Netgear's literal "password" default, ASUS ZenWiFi mesh moving to 192.168.50.1 to avoid clashing with ISP gateways).
  • ISP-specific guides. ISPs flash custom firmware on top of retail hardware and pre-configure VLAN tags, PPPoE credentials, and DNS settings the retail version does not have. Pages for TM Unifi, BT, Xfinity, Maxis, Jio, and others document the overlay each provider applies: useful both for accessing the supplied gateway and for replacing it with your own.
  • Networking fundamentals. The concepts underneath everything else: what a default gateway actually is, why every home network reuses the same private IP ranges, what NAT does to the packets your laptop sends. These pages exist so that the practical guides do not have to keep re-explaining the same primitives.

Editorial standards

Every page is researched from primary sources first: manufacturer support documentation, ISP technical specifications, IETF RFCs, and where applicable, physical device verification. The full sourcing process is documented in the methodology. Pages carry a visible last-reviewed date in the byline and a fixed review cadence: 6 months for ISP-specific pages, 12 months for everything else.

The site does not run affiliate links, sponsored placements, or paid product reviews. Where one brand or ISP is described more favourably than another, that judgment is grounded in the testing or sourcing on the page. The conflicts-of-interest section of the methodology is the policy of record.

Who is behind the site

HanoiLUG.org is edited today by Hisamudin, based in Malaysia, with a background in technical writing on home networking and consumer infrastructure. The current editorial work is a continuation in spirit, not affiliation, of the original Hanoi GNU/Linux Users Group community; the domain's heritage is acknowledged rather than fictionalised. The authors page lists every editor with expertise areas and contact details.

Independence and scope

HanoiLUG is independent of every router manufacturer, ISP, and networking vendor named on the site. The brand names, product names, and trademarks belong to their respective owners and appear here under fair-use editorial context. The terms of use page is the formal version of this disclaimer.

The site does not provide individual troubleshooting support. The brand and ISP directories cover the diagnostic paths in detail; beyond that, the manufacturer's or ISP's own support is the right escalation. The contact page covers the kinds of inquiries we do respond to (editorial corrections, factual disputes, press, partnership).