Subnetting

This is C++ code for 'Subnetting' assignment of Computer Networks (SPPU TE SEM-5) - CS of Savitribai Phule Pune University - Gyaani Buddy

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This is python code for 'Subnetting' assignment of Computer Networks (SPPU TE SEM-5) - CS of Savitribai Phule Pune University - Gyaani Buddy

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def convert_to_binary(num):
    answer = ''
    while(num!=0):
        answer=str(num%2)+answer
        num=num//2
    while(len(answer)!=8):
        answer="0"+answer
    return answer

print("This assignment decodes a class C IP address")
print("Enter the initial IP (192.B.C.D format):", end="")
input_ip_1 = str(input())
sections = input_ip_1.split('.')


# Display in binary

print("The IP address in bits format is: ")

prelim_string=""
prelim_bitwise=""
for i in range(0,4):
    if( i != 3 ):
        print(convert_to_binary(int(sections[i]))+".",end="")
        prelim_bitwise = prelim_bitwise + convert_to_binary(int(sections[i]))+"."
        prelim_string = prelim_string + sections[i] + "."
    else:
        print(convert_to_binary(int(sections[i])),end="\n")

# display submnet mask

cidr = 0
while(cidr>32 or cidr<24):
    cidr = int(input("Enter the CIDR bits (a number between 24 to 31):"))

last_bits = cidr - 24
temp = 0
for i in range (last_bits):
    temp = temp + 2**(7-i)

print("Subnet mask in numeric format: ", end="")
print("255.255.255."+str(temp))
print("Subnet mask in bitwise format: ", end="")
print(convert_to_binary(255)+"."+convert_to_binary(255)+"."+convert_to_binary(255)+"."+convert_to_binary(temp)+"\n")

# calculate network ip, broadcast ip, first ip and last ip 

network_num = temp & int(sections[3])
broadcast_num = (255 - temp) | int(sections[3])

print("Network address in numeric format: ", end="")
print(prelim_string+str(network_num))
print("Network address in bitwise format: ", end="")
print(prelim_bitwise+convert_to_binary(network_num)+"\n")

print("Broadcast address in numeric format: ", end="")
print(prelim_string+str(broadcast_num))
print("Broadcast address in bitwise format: ", end="")
print(prelim_bitwise+convert_to_binary(broadcast_num)+"\n")

if(broadcast_num - network_num > 1):
    print("First address in numeric format: ", end="")
    print(prelim_string+str(network_num+1))
    print("First address in bitwise format: ", end="")
    print(prelim_bitwise+convert_to_binary(network_num)+"\n")

    print("Last address in numeric format: ", end="")
    print(prelim_string+str(broadcast_num-1))
    print("Last address in bitwise format: ", end="")
    print(prelim_bitwise+convert_to_binary(broadcast_num)+"\n")

else: 
    print("No usable address in this subnet")
    

# connectivity with other client
while(True):
    print("Enter the some IP (192.B.C.D format) or exit(1):", end="")
    input_ip_2 = str(input())
    if(input_ip_2=='1'):
        break
    sections2 = input_ip_2.split('.')
    
    print("IP-2 address in bits format is: ")

    prelim_string1=""
    for i in range(0,4):
        if( i != 3 ):
            print(convert_to_binary(int(sections2[i]))+".",end="")
            prelim_string1 = prelim_string1 + sections2[i] + "."
        else:
            print(convert_to_binary(int(sections2[i])),end="\n")
                
    if(prelim_string!=prelim_string1):
        print("Clients not in same network")
    else:
        if(int(sections2[3])>=network_num and int(sections2[3])<=broadcast_num):
            if(int(sections2[3])==int(sections[3])):
                print("Same IP address entered twice")
            else:
                print("Clients are in same subnet! Connectivity can be established!")
        else:
            print("Clients are in same network but different subnets, connectivity cannot be established.")
    

This is Java code for 'Subnetting' assignment of Computer Networks (SPPU TE SEM-5) - CS of Savitribai Phule Pune University - Gyaani Buddy

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