TCP/IP (Transmission Control Protocal/Internet Protocal)

What Is IP address?
*rule to communicate (language) -network equip(network card)
-media(fiber optik)
- Protocal
*broadcast vs mutlicast
(all receievd) (limited)

What Are Classes?
*how 2 secure using broadcast?
-ip address

• Class A addresses begin with 0xxx, or 1 to 126 decimal.
• Class B addresses begin with 10xx, or 128 to 191 decimal.
• Class C addresses begin with 110x, or 192 to 223 decimal.
• Class D addresses begin with 1110, or 224 to 239 decimal.
• Class E addresses begin with 1111, or 240 to 254 decimal.

e.g

Default subnet masks:

• Class A - 255.0.0.0 - 11111111.00000000.00000000.00000000
• Class B - 255.255.0.0 - 11111111.11111111.00000000.00000000
• Class C - 255.255.255.0 - 11111111.11111111.11111111.00000000

e.g:-
192.168.1 .0 /30 -ip add
255.255.255.? -subnet

{11111111}.{11111111}.{11111111}.{11111100}
8 8 8 6 = 30
convert binary 2 dec
11111100 =252











check route ip 192.168.1.1 Or 192.168.1.254