2. TCP/IP Protocols By: Patrick Moore Nykoya Watson Andre Wiggins

3. TCP/IP Protocols By: Patrick Moore Nykoya Watson Andre Wiggins

4. Connecting to a networkBrowsing the Web Calling a friend on Skype

9. Data

10. DHCPUDPIP

11. DHCPUDPIP

12. Dynamic Host Configuration Protocol (DHCP) Yo, Server! I can haz an IP Address, plz?

13. Data Yo, Server! I can haz an IP Address, plz? Data Yo, Server! I can haz an IP Address, plz? Dynamic Host Configuration Protocol (DHCP)

15. Application Layer: Transaction ID Client IP Address Assigned IP Address Requested IP Address Message Type Netmask Router IP DNS Server Lease Time

16. Dynamic Host Configuration Protocol (DHCP) Application Layer: Transaction ID Client IP Address Assigned IP Address Requested IP Address Message Type Netmask Router IP DNS Server Lease Time

17. Dynamic Host Configuration Protocol (DHCP) Application Layer: Transaction ID Client IP Address Assigned IP Address Requested IP Address Message Type Netmask Router IP DNS Server Lease Time

18. Application Layer: Transaction ID Client IP Address Assigned IP Address RequestedIP Address Message Type Netmask Router IP DNS Server Lease Time User Datagram Protocol Transport Layer: Source Port (67) Destination Port (68) Data Length Checksum Note: I’m connection-less!

19. Application Layer: Transaction ID Client IP Address Assigned IP Address Next Server IP Address Message Type Netmask Router IP DNS Server Lease Time User Datagram Protocol Transport Layer: Source Port (67) Destination Port (68) Data Length Checksum Note: I’m connection-less!

20. Transport Layer: Source Port (67) Destination Port (68) Data Length Checksum User Datagram Protocol Note: I’m connection-less!

21. Transport Layer: Source Port (67) Destination Port (68) Data Length Checksum Internet Protocol

22. IP Layer: Version Fragmentation Offset TTL (hops) Protocol Checksum Source IP Address Destination IP Address

23. Internet Protocol IP Layer: Version Fragmentation Offset TTL (hops) Protocol Checksum Source IP Address Destination IP Address

24. Internet Protocol IP Layer: Version Fragmentation Offset TTL (hops) Protocol Checksum Source IP Address Destination IP Address Off into the real world! Only to return with all of our requested data!

25. Weiner dog in a hot dog suit

27. HTTPTCPIP

28. Hypertext Transfer Protocol (HTTP) GET /index.html HTTP/1.1

29. Hypertext Transfer Protocol (HTTP)

31. Application Layer: HTTP Verb (Get/Post) URL (www.google.com) Protocol (http) Version (1.1)

32. Hypertext Transfer Protocol (HTTP) Application Layer: HTTP Verb (Get/Post) URL (www.google.com) Protocol (http) Version (1.1)

33. Hypertext Transfer Protocol (HTTP) Application Layer: HTTP Verb (Get/Post) URL (www.google.com) Protocol (http) Version (1.1)

34. Application Layer: HTTP Verb (Get/Post) URL (www.google.com) Protocol (http) Version (1.1) Transmission Configuration Protocol Transport Layer: Source Port Destination Port Sequence # ACK #

35. Application Layer: Transaction ID Client IP Address Assigned IP Address Next Server IP Address Message Type Netmask Router IP DNS Server Lease Time Transmission Configuration Protocol Transport Layer: Source Port Destination Port Sequence # ACK #

36. Transport Layer: Source Port Destination Port Sequence # ACK # Transmission Configuration Protocol

37. Transport Layer: Source Port Destination Port Sequence # ACK # Internet Protocol

38. IP Layer: Version Header Length TTL (hops) Protocol Source IP Address Destination IP Address

39. Internet Protocol IP Layer: Version Header Length TTL (hops) Protocol Source IP Address Destination IP Address

41. Making a Skype call. Hey I’m here… What type of firewall/Nat do you have? I’m ready to send you my IP address..

42. Yea… your IP looks like mine I know Right!!!

43. What happens when you make a skype call ?