IEEE 802-2, Token Ring, FDDI, SMDS,SDLC, LAPB, etc.
IP V4 Packet Format Version Header Length Type of Service Total Length Identification Fragment Info Time to Live Protocol Header Checksum Source Address Destination Address Multiple 32 bit words of “Options” Data
TCP PDU Format Source Port Destination Port Protocol Header Checksum Sequence Number Acknowledgement Number Multiple 32 bit words of “Options” Data Window Checksum (Hdr + Data) Urgent Pointer IP Header Header Length Code Bits Reserved
Notes •For Windows XP Professional-based computers, the maximum number of concurrent network connections that are allowed is 10. This limit includes all transfer and all resource share protocols. For Windows XP Home Edition-based computers, the maximum number of concurrent network connections that are allowed is 5. This limit is the number of sessions that can be hosted at the same time from other computers. Therefore, we cannot use the administrative tool usage to connect to the system from a remote computer.