{"slug":"troubleshoot-aws-access-to-google-with-advertised-routes","title":"Troubleshoot AWS access to Google with advertised routes","tags":["tailscale","access-control","routing"],"agent_summary":"Last validated: Mar 20, 2026","trigger_phrases":[],"runnable":false,"markdown":"\r\n# Troubleshoot AWS access to Google with advertised routes\r\n\r\nLast validated: Mar 20, 2026\r\n\r\nOnly part of the `172.0.0.0/8` range is private. The rest is public address space and Google has IP addresses in that range for some of its data centers.\r\n\r\nYou can safely advertise the `172.16.0.0/12` range instead:\r\n\r\n```shell\r\ntailscale set --advertise-routes=172.16.0.0/12\r\n```\r\n\r\n![Project Logo](https://cdn.brandfetch.io/tailscale.com/fallback/lettermark/theme/dark/h/256/w/256/icon?c=1bfwsmEH20zzEfSNTed)\r\n\r\nAsk AI\r\n\r\nreCAPTCHA\r\n\r\nRecaptcha requires verification.\r\n\r\nprotected by **reCAPTCHA**\r\n","html":"<h1>Troubleshoot AWS access to Google with advertised routes</h1>\n<p>Last validated: Mar 20, 2026</p>\n<p>Only part of the <code>172.0.0.0/8</code> range is private. The rest is public address space and Google has IP addresses in that range for some of its data centers.</p>\n<p>You can safely advertise the <code>172.16.0.0/12</code> range instead:</p>\n<pre><code class=\"language-shell\">tailscale set --advertise-routes=172.16.0.0/12\n</code></pre>\n<p><img src=\"https://cdn.brandfetch.io/tailscale.com/fallback/lettermark/theme/dark/h/256/w/256/icon?c=1bfwsmEH20zzEfSNTed\" alt=\"Project Logo\"></p>\n<p>Ask AI</p>\n<p>reCAPTCHA</p>\n<p>Recaptcha requires verification.</p>\n<p>protected by <strong>reCAPTCHA</strong></p>\n"}