Technical Tip: How does 'diagnose sys waninfo ipify' command identify the WAN ip address of the FortiGate
| Description | This article explains the communication flow used by the FortiGate to identify the public IP. |
| Scope | FortiGate |
| Solution | To get the public IP address, the FortiGate performs a series of steps:
 HTTP Request: A GET request is then sent to the https://api.ipify.org/ server.: "request": { "method": "GET", "url": "https://api.ipify.org/", "httpVersion": "http/2.0", "headers": [ { "name": ":authority", "value": "api.ipify.org" }, { "name": ":method", "value": "GET" }, { "name": ":path", "value": "/" }, { . . . . { "name": "user-agent", "value": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36" } ], "queryString": [], "cookies": [], "headersSize": -1, "bodySize": 0 },
"response": { "status": 200, "statusText": "", "httpVersion": "http/2.0", "headers": [ { "name": "cf-cache-status", "value": "DYNAMIC" }, { "name": "cf-ray", "value": "98492fa3fc6f7937-AMD" }, { "name": "content-encoding", "value": "br" }, { "name": "content-type", "value": "text/plain" }, { "name": "date", "value": "Thu, 25 Sep 2025 08:35:05 GMT" }, { "name": "server", "value": "cloudflare" }, { "name": "vary", "value": "Origin" } ], "cookies": [], "content": { "size": 13, "mimeType": "text/plain", "text": "X.X.X.235" <<<<< Public ip information shared by "api.ipify.org" }, "redirectURL": "", "headersSize": -1, "bodySize": -1, "_transferSize": 143, "_error": null, "_fetchedViaServiceWorker": false }, |
