DNA Cafe | Download | FreeSoftware | Java | Links
| OSI Protocol Stack | Well-known Protocols | ||
|---|---|---|---|
| 7th | Application | Application | HTTP FTP SMTP POP3 NNTP |
| 6th | Presentation | ||
| 5th | Session | ||
| 4th | Transport | Transport | TCP UDP ICMP |
| 3rd | Network | Network | IP |
| 2nd | Data Link | Link | Ethernet FDDI X.25 |
| 1st | Physical | ||