IT Certification and Training Blog

ICMP Port Numbers

Posted by Andrew Messier on Aug 24, 2017 11:20:34 AM

Various application layer protocols listen on specific ports. For example, when you want to visit a website, the HTTP request that exits your computer is destined for TCP port 80 on the remote server. The source port on your computer is an arbitrary ephemeral port. The request is processed on the server, and data returns to your computer destined to the previous source port where your web browser (probably Chrome) is ready and waiting.

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Tags: ICMP Port Numbers