BÀI 3 GIAO THỨC TCPIP VÀ IP ADDRESS V.4 (BỘ MÔN MẠNG CĂN BẢN)
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hoặc 255.255.192.0 : 18 bit dùng làm địa chỉ mạng
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194
.
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.
101
.
10 IP address
Subnet
mask
255
.
255
.
255
.
0
10
Host ID
194
.
200
.
101
.
Network ID
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Lớp #Số bit
net_id
#Số bit
host_id
Bắt đầu
bằng bit
Giá trị
byte đầu
Subnet mask
A 8 24 0 1-126 255.0.0.0
B 16 16 10 128-191 255.255.0.0
C 24 8 110 192-223 255.255.255.0
D Reserved for
multicast
1110 224-239 N/A
E Reserved for R &
D
11110-
11111
240-255 N/A
