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Port Numbers
Network Fundamentals / Ch. 6 - TCP/IP Transport, Applications, and Security
| Application | Protocol | Port Number |
|---|---|---|
| FTP data | TCP | 20 |
| FTP control | TCP | 21 |
| SSH | TCP | 22 |
| Telnet | TCP | 23 |
| SMTP | TCP | 25 |
| DNS | UDP, TCP | 53 |
| DHCP | UDP | 67, 68 |
| TFTP | UDP | 69 |
| HTTP (WWW) | TCP | 80 |
| POP3 | TCP | 110 |
| SNMP | UDP | 161 |
| SSL | TCP | 443 |
| RTP-based Voice (VoIP) and Video | UDP | 16,384–32,767 |