S-DEV/네트워크 보안
OSI model and TCP/IP Layer
철민1234
2023. 7. 15. 21:52
728x90
• OSI model and TCP/IP
| OSI 7 Layer | Layer No | Example | Other Protocols | |
| Alligator | Application | L7(Firewall) | HTTP | FTP, SSH, LOCO |
| Pet | Presentation | |||
| Steve’s | Session | |||
| Touch | Transport | L4(NAT) | TCP | UDP, SCTP |
| Not | Network | L3(Router) | IP | IPv6, ARP |
| Do | Data Link | L2(Switch) | Ethernet | Frame Relay |
| Please | Physical |
• WireSark
- 웹(HTTP) 통신이 이루어지는 경우 ETH(Ethernet ll) - IP(Internet Protocol Version4) - TCP(Transmission Control Protocol) - HTTP(Hypertext Transfer Protocol) 순서로 Packet이 구성되어 있다.