First page Back Continue Last page Summary Graphics
Layer model: insecure protocols
- Application layer: RSH, Telnet, FTP
- Transport layer: TCP, UDP
- Network layer: IP, IPX, EtherTalk
- Link layer: Ethernet, PPP
- Physical layer: CAT-5 cable, Wireless
Network security? Confidentiality, Integrity, and Endpoint Authentication
Notes:
"Familiar" TCP/IP protocols
Problems:
Clear text content
Passwords sniffed
Authentication weak
No data integrity assurance