Reference model, sniffers inspect the two lowest levels, the physical and data link layers.
OSI 계층번호 |
계층명 | 해당 프로토콜 |
---|---|---|
Layer 7 | Application | DNS, FTP, HTTP, SMTP, SNMP, Telnet |
Layer 6 | Presentation | XDR(External Data Representation) |
Layer 5 | Session | Named Pipes, RPC |
Layer 4 | Transport | NetBIOS, TCP, UDP |
Layer 3 | Network | ARP, IP, IPX, OSPF |
Layer 2 | Data Link | Arcnet, Ethernet, Token Ring |
Layer 1 | Physical | Coaxial, Fiber Optic, UTP |