Commonly used network ports/protocols and IP masks/ranges
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30 terms
Terms | Definitions |
|---|---|
 FTP (File Transfer Protocol) | TCP Port 20, 21 |
| SSH (Secure Shell) | TCP Port 22 |
| Telnet | TCP Port 23 |
| SMTP (Simple Mail Transfer Protocol) | TCP Port 25 |
| DNS (Domain Name Service) | UDP/TCP Port 53 |
| DHCP (Dynamic Host Configuration Protocol) | UDP Port 67, 68 |
| TFTP (Trivial File Transfer Protocol) | UDP Port 69 |
| HTTP (HyperText Transfer Protocol) | TCP Port 80 |
| POP3 (Post Office Protocol) | TCP Port 110 |
| NNTP (Network News Transfer Protocol) | TCP Port 119 |
| NTP (Network Time Protocol) | UDP Port 123 |
| IMAP4 (Internet Message Access Protocol) | TCP Port 143 |
| SNMP (Simple Network Management Protocol) | UDP Port 161, 162, 10161, 10162 |
| LDAP (Lightweight Directory Access Protocol) | TCP Port 389 |
| HTTPS (HyperText Transfer Protocol Secure) | TCP Port 443 |
| SMB (Server Message Block) | TCP Port 445 |
| L2TP (Layer 2 Tunneling Protocol) | UDP Port 1701 |
| PPTP (Point to Point Tunneling Protocol) | TCP Port 1723 |
| RDP (Remote Desktop Protocol) | TCP Port 3389 |
| TraceRoute | UDP Port 33434-33534(Unix) or ICMP(Windows) |
| Ping | ICMP (no port) |
| Class A networks | 1.x.x.x - 126.x.x.x |
| Class B networks | 128.x.x.x - 191.x.x.x |
| Class C Networks | 192.x.x.x - 223.x.x.x |
| Loopback address | 127.x.x.x |
| APIPA Address range | 169.254.x.x |
| Class A Private Networks | 10.x.x.x Mask 255.0.0.0 |
| Class B Private Networks | 172.0-16.x.x Mask 255.255.0.0 |
| Class C Private Networks | 192.168.x.x Mask 255.255.255.0 |
| IPSec | UDP port 500, 4500 and IP Protocol 50 |
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