Finding DBA from given IP address

Direct Broadcast Address (DBA):
Two addresses are subtracted from the number of hosts in each network because one is used for Net Id and other one is used for DBA of the network.

In this article we are going to discuss how to find out DBA of a network if a IP address is given. Following is the procedure of finding it.

Procedure:

First we need to recognize the class of the IP address.
Then according to the class of IP address, every class has a mask.
There after we need to find the Net Id which is obtained by doing the bitwise AND of IP and mask.
Then from obtained Net Id we can obtained the DBA of that network.

Above method can be illustrated by the following example:

Given, IP = 201.55.63.123
And, we have to find the DBA of the network.

Step-1: It can be recognized that this IP belongs to Class C.
Step-2: Mask of Class C = 255.255.255.0
Step-3: In this step Net Id is calculated by doing bitwise AND of IP (201.55.63.123) and mask (255.255.255.0).
```
201 & 255 = 201
55 & 255 = 55
63 & 255 = 63
123 & 0 = 0

Hence, Net Id = 201.55.63.0 
```

Step-4: Since Net Id = 201.55.63.0

First host = 201.55.63.1
Second host = 201.55.63.2
.
.
.
Last host = 201.55.63.254

And, DBA of network = 201.55.63.255

Article Tags :

Computer Networks

GATE CS

Recommended Articles

1. Why is the IP address called a "logical" address, and the MAC address is called a "physical" address?

2. IP address as logical address and MAC address as Physical address

3. Alternate method to find DBA from given IP address

4. Difference Between Network Address Translation (NAT) and Port Address Translation (PAT)

5. Difference between MAC Address and IP Address

6. Difference between 3-address instruction and 1-address instruction

7. Difference between 3-address instruction and 0-address instruction

8. Difference between 3-address instruction and 2-address instructions

9. Difference between 2-address instruction and 1-address instructions

10. MAC Address and Random MAC Address

11. What is Physical Address and Logical Address in Networking?

12. Why Do We Need IP Address if We Have Already MAC Address?

13. How do You Calculate the Subnet Address from an IP Address and Subnet Mask?

14. How to Finding a Specific Computer from an IP address on a Network?

15. Finding IP address of a URL in Java

16. How Can You Identify the IP Class of a Given IP Address?

17. How to validate MAC address using Regular Expression

18. Types of Network Address Translation (NAT)

19. C Program to display hostname and IP address

20. Extracting MAC address using Python

21. Network Address Translation (NAT)

22. What is External IP Address?

23. Compiler Design | Detection of a Loop in Three Address Code

24. Difference Between Network Address Translation and Domain Name System

25. Port Address Translation (PAT) on Adaptive Security Appliance (ASA)