MCSE Notes Lecture # 5 : TCP/IP (Transmission Control Protocol / Internet Protocol)

LECTURE 5

TCP/IP (Transmission Control Protocol / Internet Protocol):

IP ADDRESSING:

• NIC cards having unique addressing.
• Address is in the form of Hexa-Decimal.

• (e.g.)  A1.B2.00.C1.D2.01

Manufacturing	Number of NIC Cards
Company Name	designed by company

 

• IP address is in Network layer.

• IP address is of 32 bits.

Classes of IP address:

• Sub-net mask specifies the direction of data (i.e.) where data is to be sent.

• Router sends data by checking sub-net mask.

• IP addresses having different classes are called IPV 4 (IP version 4).

 

Class	Network	Host	IP Range	IP Range
			Sub-net Mask Range	Sub-net Mask Range
Name	Bits	Bits
			Starting	Ending
Class A	8	24	1.0.0.0	126.255.255.255
			255.0.0.0	255.0.0.0

 

Class B	16	16	128.0.0.0	191.255.255.255
			255.255.0.0	255.255.0.0
Class C	24	8	192.0.0.0	223.255.255.255
			255.255.255.0	255.255.255.0
Class D	–	–	240.0.0.0	255.255.255.255
Class E	–	–	–	–

• 127.0.0.0 To 127.255.255.255 is used for device checking called “Loopback” address.

• Class D is used for multitasking (not for normal communication).

• 240.0.0.0 To 255.255.255.255 are used by NASA for Research work.

Private IP: Private IP can’t run on Internet because Router can’t understand private IP.

Class Name	IP Range	IP Range
	Starting	Ending
Class A	10.0.0.0	10.255.255.255
Class B	172.16.0.0	172.31.255.255
Class C	192.168.0.0	192.168.255.255

Public IP: Public IP are those who can run on Internet Services and Ports:

	SERVICE NAME			PORT #
	WWW		80
	DNS		53
	SMTP		25
	Telnet		23
	POP3		110
	SSL		423

Setting for Data Communication:

• NIC Card + Drivers
• Protocols (TCP/IP, IPx/SPx, Apple Talk, NetBeui)

• Client Software

• File and Print Sharing

• IP Address

PROTOCOLS: