Redes

Se deben identificar 3 cosas
– Bits de Red
Corresponden a la mascara por defecto
– Bits de Sub Red
– Bits de Host

10011100.01001110.0000000 0.00000000
11111111.11111111.0000000 0.00000000

2^x=500; x=9

Host: 235 = 11101011
Subred: 100 – 1 = 99 = 1100011

10011100.01001110.1100011 0.11101011

10011100.01001110.11000110.11101011

156.78.198.235/23

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201.45.67.0
255.255.255.0

2^X=10; X = 4

11001001.00101101.01000011.0000 0000
11111111.11111111.11111111.0000 0000

Host: 12 = 1100
Subred: 25 – 1 = 24 = 11000

11001001.00101101.01000011.0000 0000

No se Puede.

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IP: 100.0.0.0

2^X=5000; X=13

1100100.00000000.000 00000.00000000
1111111.00000000.000 00000.00000000

Host: 2500 – 100111000100
Subred: 1000-1= 999 -> 1111100111

1100100.01111100.11101001.11000100

100.124.233.196/19

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192.168.1.0/24

2^X=16-2= 14; x=4;

11000000.10101000.00000001.0000 0000
11111111.11111111.11111111.0000 0000

11000000.10101000.00000001.0000 0000 = 192.168.1.0
11111111.11111111.11111111.1111 0000 = 255.255.255.240

SubRedes:
2-1 = 1 = 1
6-1= 5 = 101

IP DE RED Subred 2: 11000000.10101000.00000001.00010000 = 192.168.1.16
GateWay = 192.168.1.17/28

IP DE RED Subred 6: 11000000.10101000.00000001.01010000 = 192.168.1.80
GateWay = 192.168.1.81/28

Hosts Subed 2:

2 = 10 = 11000000.10101000.00000001.00010010 = 192.168.1.18 /Web Server
3 = 11 = 11000000.10101000.00000001.00010011 = 192.168.1.19
4 = 100 = 11000000.10101000.00000001.00010100 = 192.168.1.20
5 = 101 = 11000000.10101000.00000001.00010101 = 192.168.1.21

Hosts Subed 6:

2 = 10 = 11000000.10101000.00000001.01010010 = 192.168.1.82 /Dns
3 = 11 = 11000000.10101000.00000001.01010011 = 192.168.1.83
4 = 100 = 11000000.10101000.00000001.01010100 = 192.168.1.84
5 = 101 = 11000000.10101000.00000001.01010101 = 192.168.1.85

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VLSM: Máscara de Subred de longitud variable
– Consiste e n asignar la máscara de red de acuerdo a la cantidad de host.
– Lo importante es no desperdiciar IP’s.

Sistema antiguo criterio es ver la red mas grande.

VLSM PASOS
– Ordenar redes de la mas grande a la mas chica
– Definir cuantos bits necesita cada red y cual
es la mascara que mas acomoda
–

host bits 2^n Mascara
Lan3 100 7 2^7=128 /25
Lan2 50 6 2^6=64 /26
Lan4 20 5 2^5=32 /27
Lan1 10 4 2^4=16 /28

192.168.1.0 /24

11111111.11111111.11111111.00000000
11000000.10101000.00000001.00000000

11000000.10101000.00000001.0 0000000 -> 192.168.1.0 /25
11000000.10101000.00000001.0 1111111 -> 192.168.1.127 /25

11000000.10101000.00000001.10 000000 -> 192.168.1.128 /26
11000000.10101000.00000001.10 111111 -> 192.168.1.191 /26

11000000.10101000.00000001.110 00000 -> 192.168.1.192 /27
11000000.10101000.00000001.110 11111 -> 192.168.1.223 /27

11000000.10101000.00000001.1110 0000 -> 192.168.1.224 /28
11000000.10101000.00000001.1110 1111 -> 192.168.1.239 /28

hOST Bits 2^n Mascara
LANB1 120 7 128 /25
LANA 20 7 32 /27
LANB2 25 5 32 /27
ENLACEWAN 2 4 4 /30

201.30.40.0/24

11111111.11111111.11111111.0 0000000
11001001.00011110.00101001.0 0000000

11001001.00011110.00101001.0 0000000 -> 201.30.40.0 /25
11001001.00011110.00101001.0 1111111 -> 201.30.40.127 /25

11001001.00011110.00101001.100 00000 -> 201.30.40.128 /27
11001001.00011110.00101001.100 11111 -> 201.30.40.159 /27

11001001.00011110.00101001.100 00000 -> 201.30.40.160 /27
11001001.00011110.00101001.100 11111 -> 201.30.40.191 /27

11001001.00011110.00101001.110000 00 -> 201.30.40.192 /30
11001001.00011110.00101001.111111 11 -> 201.30.40.195 /30

201.30.40.192/30

Host Bits 2^n Mascara
60 6 2^6=64 /26
10 4 2^4=16 /28
5 3 2^3=8 /29
2 2 2^3=8 /30

11111111.11111111.11111111.11000000
11001001.00011110.00101001.00000000

11001001.00011110.00101001.00 000000 -> 201.30.40.0 /26
11001001.00011110.00101001.00 111111 -> 201.30.40.63 /26

11001001.00011110.00101001.0100 0000 -> 201.30.40.64 /28
11001001.00011110.00101001.0100 1111 -> 201.30.40.79 /28

11001001.00011110.00101001.01010 000 -> 201.30.40.80 /29
11001001.00011110.00101001.01010 111 -> 201.30.40.87 /29

11001001.00011110.00101001.010110 00 -> 201.30.40.88 /30
11001001.00011110.00101001.010110 11 -> 201.30.40.91 /30

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170.30.0.0 /16

11111111.11111111.00000000.00000000
10101010.00011110.00000000.00000000

LAN Host bits 2^n Mascara
1 500
2 100
3 1000
4 200
5 50
6 4000

(bits-32)
LAN Host bits 2^n Mascara
6 4000 12 2^12=4096 /20
3 1000 10 2^10=1024 /22
1 500 9 2^9=512 /23
4 200 8 2^8=256 /24
2 100 7 2^7=128 /25
5 50 6 2^6=64 /26

11111111.11111111.00000000.00000000
10101010.00011110.00000000.00000000

Lan6:

10101010.00011110.0000 0000.00000000 -> 170.30.0.0 /20
10101010.00011110.0000 1111.11111111 -> 170.30.15.255 /20

10101010.00011110.000100 00.00000000 -> 170.30.16.0 /22
10101010.00011110.000100 11.11111111 -> 170.30.19.255 /22

10101010.00011110.0001010 0.00000000 -> 170.30.20.0 /23
10101010.00011110.0001010 1.11111111 -> 170.30.21.255 /23

10101010.00011110.00010110.00000000 -> 170.30.22.0 /24
10101010.00011110.00010110.11111111 -> 170.30.22.255 /24

10101010.00011110.00010111.0 0000000 -> 170.30.23.0 /25
10101010.00011110.00010111.0 1111111 -> 170.30.23.127 /25

10101010.00011110.00010111.10 000000 -> 170.30.23.128 /26
10101010.00011110.00010111.10 111111 -> 170.30.23.191 /26

10101010.00011110.00010111.110000 00 -> 170.30.23.192 /30
10101010.00011110.00010111.110000 11 -> 170.30.23.195 /30

10101010.00011110.00010111.110001 00 -> 170.30.23.196 /30
10101010.00011110.00010111.110001 11 -> 170.30.23.199 /30

10101010.00011110.00010111.110010 00 -> 170.30.23.200 /30
10101010.00011110.00010111.110010 11 -> 170.30.23.203 /30

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Nombre Host
Lan1 600
Lan2 1500
Lan3 400
Lan4 200
Lan5 25
Lan6 40
Wan1 2
Wan2 2
Wan3 2

Nombre Host Bits 2^n Mascara
Lan2 1500 11 2048 /21
Lan1 600 10 1024 /22
Lan3 400 9 512 /23
Lan4 200 8 256 /24
Lan6 40 6 64 /26
Lan5 25 5 32 /27
Wan1 2 2 4 /30
Wan2 2 2 4 /30
Wan3 2 2 4 /30

152.74.96.0 /19

10011000.01001010.01100000.00000000
11111111.11111111.11100000.00000000

Lan2:
10011000.01001010.01100 000.00000000 152.74.96.0 /21
10011000.01001010.01100 111.11111111 152.74.103.255 /21

Lan1:
10011000.01001010.011010 00.00000000 152.74.104.0 /22
10011000.01001010.011010 11.11111111 152.74.107.255 /22

Lan3:
10011000.01001010.0110110 0.00000000 152.74.108.0 /23
10011000.01001010.0110110 1.11111111 152.74.109.255 /23

Lan4:
10011000.01001010.01101110.00000000 152.74.110.0 /24
10011000.01001010.01101110.11111111 152.74.110.255 /24

Lan6:
10011000.01001010.01101111.00 000000 152.74.111.0 /26
10011000.01001010.01101111.00 111111 152.74.111.63 /26

Lan5:
10011000.01001010.01101111.010 00000 152.74.111.64 /27
10011000.01001010.01101111.010 11111 152.74.111.95 /27

Wan1:
10011000.01001010.01101111.011000 00 152.74.111.96 /30
10011000.01001010.01101111.01100011 152.74.111.99 /30

Wan2:
10011000.01001010.01101111.011001 00 152.74.111.100 /30
10011000.01001010.01101111.011001 11 152.74.111.103 /30

Wan3:
10011000.01001010.01101111.011010 00 152.74.111.104 /30
10011000.01001010.01101111.011010 11 152.74.111.107 /30