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VLSM.py
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result = []
def datosp():
IPinicial = []
host = []
print("Ingrese IP inicial")
for i in range(4):
correct = False
while(not correct):
try:
inicial = (input(f"Ingrese octeto {i+1}: "))
if (int(inicial) >= 0):
correct = True
IPinicial.append(inicial)
else:
print("\nIngrese un valor correcto. Vuelva a intentarlo...\n")
except (RuntimeError, TypeError, NameError, IndexError, ValueError):
print("\nIngrese un valor correcto. Vuelva a intentarlo...\n")
correct = False
while(not correct):
try:
prefijo = int(input("Ingrese mascara inicial(prefijo): "))
if prefijo > 0:
correct = True
else:
print("\nIngrese un valor correcto. Vuelva a intentarlo...\n")
except (RuntimeError, TypeError, NameError, IndexError, ValueError):
print("\nIngrese un valor correcto. Vuelva a intentarlo...\n")
print("IP guardada....")
print(".".join(IPinicial),"/",prefijo)
bin(prefijo)
print('\n')
correct = False
while(not correct):
try:
j = int(input("Cuantos hosts desea ingresar: "))
if j > 0:
correct = True
else:
print("\nIngrese un valor correcto. Vuelva a intentarlo...\n")
except (RuntimeError, TypeError, NameError, IndexError, ValueError):
print("\nIngrese un valor correcto. Vuelva a intentarlo...\n")
for i in range(j):
correct = False
while(not correct):
try:
h = int(input(f"Host {i+1}: "))
if h >= 0:
correct = True
host.append(h)
else:
print("\nIngrese un valor correcto. Vuelva a intentarlo...\n")
except (RuntimeError, TypeError, NameError, IndexError, ValueError):
print("\nIngrese un valor correcto. Vuelva a intentarlo...\n")
host.sort(reverse=True)
print("Ordenando de mayor a menor quedaría de la siguiente forma....")
print(host)
tabla()
result.clear()
calculos(host, IPinicial, prefijo)
def tabla():
o = '0.240'
Lista = [[' IP', .128, .192, .224, o, .248, .252, .254], [' Red', 2, 4, 8, 16, 32, 64, 128],
[' Host', 128, 64, 32, 16, 8, 4, 2]]
print("\n")
print(" ***TABLA DE AYUDA***")
Tabla = """\
+-------------------------------------------------------------------------------------+
| Prefijo /25 /26 /27 /28 /29 /30 /31 |
|-------------------------------------------------------------------------------------|
{}
+-------------------------------------------------------------------------------------+\
"""
Tabla = (Tabla.format('\n'.join("| {:<10} {:>5} {:>10} {:>10} {:>10} {:>10} {:>10} {:>11} |".format(*fila) for fila in Lista)))
print(Tabla)
print("\n")
def bin(prefijo):
binario = []
imprimir = [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
c = 1
for i in range(4):
binario.append([])
for j in range(8):
if(c <= prefijo):
binario[i].append(1)
c+=1
else:
binario[i].append(0)
c = 1
for k in range(32):
if(c <= prefijo):
imprimir[k] = 1
c+=1
print("Binario del prefijo:", *imprimir, sep=" ")
bindec(binario)
def bindec(binario):
n = 0
for j in range(len(binario)+4):
if binario[0][j] == 1:
n += pow(2, 7-j)
result.append(n)
n = 0
for j in range(len(binario)+4):
if binario[1][j] == 1:
n += pow(2, 7-j)
result.append(n)
n = 0
for j in range(len(binario)+4):
if binario[2][j] == 1:
n += pow(2, 7-j)
result.append(n)
n = 0
for j in range(len(binario)+4):
if binario[3][j] == 1:
n += pow(2, 7-j)
result.append(n)
print("Conversión de binario a decimal(máscara de red): ", end="")
print(*result, sep=".")
def calculos(host, IPinicial, prefijo):
IP = [8192,4096,2048,1024,512,256,128,64,32,16,8,4,2] #host = [80, 60, 20, 2, 2, 2]
hm = []
exp = []
nuevo = []
c = 0
for i in range(len(host)):
for j in range(len(IP)):
if IP[j] > host[i]:
x = pow(2, 13 - j) - 2
e = 13-j
hm.append(x)
exp.append(e)
for i in range(len(exp)):
result.clear()
ceros = 32-prefijo
print(f"Para {host[i]} hosts necesito {exp[i]} bits")
print(f"Los hosts máximos serían: 2^{exp[i]} - 2 (red inicial y broadcast) = ", hm[i])
print("Su dirección inicial es: ", end ="")
IPinicial[3] = int(IPinicial[3]) + int(c)
if IPinicial[3] == 256:
nuevo = IPinicial[:]
nuevo[2] = int(nuevo[2]) + int(1)
nuevo[3] = 0
print(*nuevo, sep =".")
else:
print(*IPinicial, sep =".")
t = ceros-exp[i]+prefijo
print(f"el prefijo de la máscara es: {ceros} - {exp[i]} + {prefijo} = {t} ")
bin(t)
print("Su rango de direcciones válido es: ", end ="")
IPinicial[3] = int(IPinicial[3]) + int(1)
if IPinicial[3] > 255:
IPinicial[3] = 1
IPinicial[2] = int(IPinicial[2]) + int(1)
print(*IPinicial, sep =".", end="")
elif IPinicial[3] < 256:
print(*IPinicial, sep =".", end="")
IPinicial[3] = int(IPinicial[3]) + int(hm[i]) - int(1)
if IPinicial[3] > 254:
IPinicial[3] = 254
print(" - ", end="")
if result[3] > 0:
IPinicial[3] = int(255) - int(result[3])
print(*IPinicial, sep =".")
elif result[3] == 0 and result[2] > 0:
IPinicial[2] = int(IPinicial[2]) + (int(255) - int(result[2]))
print(*IPinicial, sep =".")
elif IPinicial[3] <= 254:
print(" - ", end="")
print(*IPinicial, sep =".")
print(f"El broadcast de la red es: ", end="")
IPinicial[3] = int(IPinicial[3]) + int(1)
print(*IPinicial, sep =".")
if c==0:
c = int(c) + int(1)
print('\n')
datosp()