From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: mail.toke.dk; spf=pass smtp.mailfrom=; dkim=fail; arc=none (Message is not ARC signed); dmarc=fail (Used From Domain Record) header.from=uvic.ca policy.dmarc=none Received: from mail-yx1-f43.google.com (mail-yx1-f43.google.com [74.125.224.43]) by mail.toke.dk (Postfix) with ESMTPS id 03879714924 for ; Wed, 01 Oct 2025 07:57:06 +0200 (CEST) Received: by mail-yx1-f43.google.com with SMTP id 956f58d0204a3-638d01a8719so3824996d50.2 for ; Tue, 30 Sep 2025 22:57:06 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1759298225; x=1759903025; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=3Exzrnvlx5tvOwNMclNZsLXpLgU5kLAk2/4cG1fuDw8=; b=fpcq5wGfhMb448BCwesQOgAMfOJsaKhx8ocad5i6otz5Um1mjZoGEPgzvFKXZIt7Sm kAeCpw/wtfJFS+zQNu/Sa4iHsAFlRpdAW8vqv4TdC/xB38rvMx92p6WEzJjuR1oL0PSG SEWnn78MOz/4JK96xN8zlJYj+vc0S4ToSHfQPhXvQHT2qW39sxSdDOqn0Zx1Pb7F1E0F vWIAMD4kZ3wF213wmpMKorIqfn7yr0OZ4jHtsOXTobJDZ96K8Tfzg8Xl11wtmDaolVOG Fx3dHGLyD9pxXwifG4gVq/nLvC2HgapJIRg8mhnBur2QY+8XV0TOGJuRo7o6DqYBlhn6 wpOQ== X-Gm-Message-State: AOJu0Yw43Nftm/H84W10UmlAiEH+UhGhr4mlW3dYdu9PsCwlJ/JqhVz4 tZqgXt87rubaY6qB++wv4M8RlXjyysFnzBXJqvU4E891k1Wp2Bm0rU0f9bjeZoMJuVPrCaK6ZZ/ vJlK6RDB7G3d1Z+C3PwXI8hxFq1ONLhU= X-Gm-Gg: ASbGncu2eNoJuHPerbmjrNXsXEUTMuNttZaR9OZmEnlzjNUy6g/5gGUaifkVa9YPlk1 Tz94MXeI7p+SAz/ss30sVIbMu3WXby6/WvhLhp16QGyzhM8hpF/3kO7KVyXvxUQoZ9WT7GE3c50 CbQxd3XAorLjiswg960zbDbPK7gPnSSoP7AX4HfDdcIF+nQI0kJJN/pCh9Xnss3UpiKQ8wjWmQh 8iE84bXG3nWJ+d0Ud+aicva8GnE/nk= X-Google-Smtp-Source: AGHT+IEk6GiBScac4Gik+4ahnqTeU6SHzK4lUdlMG2B3EoV0oY8pTXWeE2GDGBuN/yewX0yqtmfsg5d1W9YQjM6TDdg= X-Received: by 2002:a05:690e:4285:20b0:635:4ecc:fc26 with SMTP id 956f58d0204a3-63b6ff755c0mr2835136d50.46.1759298224587; Tue, 30 Sep 2025 22:57:04 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: J Pan Date: Tue, 30 Sep 2025 22:56:53 -0700 X-Gm-Features: AS18NWA0i4K85rvh7IQOedrF2fNTTNjNaERfsYktjZEn26NMjtu300pH7IBbLfg Message-ID: To: Frantisek Borsik Cc: Dave Taht via Starlink Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Message-ID-Hash: 3QVXHQXMOO4A5XHAEDINHN4VEWIBH5NJ X-Message-ID-Hash: 3QVXHQXMOO4A5XHAEDINHN4VEWIBH5NJ X-MailFrom: panatuvicdotca@gmail.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; loop; banned-address; emergency; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.10 Precedence: list Subject: [Starlink] Re: Lost in Space: The Limits of Geolocation in a Satellite-Connected World (new article from Geoff Huston) List-Id: "Starlink has bufferbloat. Bad." Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: specifically for starlink, http://geoip.starlinkisp.net shows customer location by ip address, and their pop (exit to the internet) encoded in its dns ptr record. "For example, a Starlink dish in Victoria, BC, Canada has a temporary, external public IPv4 address (170.203.207.244/21) and a unique CGNAT address (100.76.147.112/10), as well as various IPv6 addresses through SLAAC and DHCP prefix delegation, with PTR customer.sttlwax1.pop.starlinkisp.net indicating the Seattle, WA, USA PoP and =E2=80=9C170.203.207.0/24,CA,CA-BC,Vancouver= =E2=80=9D in the GeoFeed." it works well mostly, but starlink geofeed and dns ptr records are often not updated properly and synchronized well, causing customer complaints at http://reddit.com/r/starlink another problem is the (uneven/unsuitable) geo-granularity "A Starlink dish inside the Arctic Circle is listed as Vancouver, more than 2400km away, according to StarlinkISP=E2=80=99s GeoFeed." btw, we can use https://arxiv.org/pdf/2412.18243 to reach 4.5m, or 65% of 7m active users claimed by starlink, by ipv6, with their geo location according to http://geoip.starlinkisp.net -- J Pan, UVic CSc, ECS566, 250-472-5796 (NO VM), Pan@UVic.CA, Web.UVic.CA/~pa= n On Tue, Sep 30, 2025 at 10:33=E2=80=AFPM Frantisek Borsik via Starlink wrote: > > https://circleid.com/posts/limits-of-geolocation-in-a-satellite-connected= -world > > =E2=80=9CWhere are you?=E2=80=9D is not an easy question to answer on the= Internet. The > telephone system=E2=80=99s address plan embedded a certain amount of phys= ical > location information in the fixed-line network, and a full E.164 telephon= e > number indicated your location in terms of your country and your area > within that country. The Internet did not adopt a geographic address plan= , > which means that you will need a lot of additional information to map an = IP > address to a location at the country or city level." > > All the best, > > Frank > > Frantisek (Frank) Borsik > > > *In loving memory of Dave T=C3=A4ht: *1965-2025 > > https://libreqos.io/2025/04/01/in-loving-memory-of-dave/ > > > https://www.linkedin.com/in/frantisekborsik > > Signal, Telegram, WhatsApp: +421919416714 > > iMessage, mobile: +420775230885 > > Skype: casioa5302ca > > frantisek.borsik@gmail.com > _______________________________________________ > Starlink mailing list -- starlink@lists.bufferbloat.net > To unsubscribe send an email to starlink-leave@lists.bufferbloat.net