Wireshark Interview Questions

1. You are required to monitor and display all incoming packets to a particular system from the IP address 192.168.1.1. What filter would you use ? ip.src==192.168.1.1 2. You are required to monitor all packets on a switch port (A) from another port (B). How would you achieve …

What happens when you ping a website

This tutorial understands what exactly happens when a you ping a website. The website www.networkinterfaze.com is issued a ping from the command prompt for a detailed understanding. Step 1 The command ping www.networkinterfaze.com is issued on the command prompt. Step 2 After the command is issued, the website …

How to find open ports on router.

This tutorial understands how to find open ports on a router. Ports on a remote router can be detected using a port scanning tools like nmap. Port scanning is a technique which is used to find ports open on a remote device. In the below setup, the PC …

Network automation using Python

This article understands how network automation can be performed using Python. Scapy is a framework which is used for crafting and sending packets. Scapy can be combined with Python for automating and creating tools like packet injectors , network scanners, speed testers etc. The step by step procedure …

Cloud Computing for IT Professionals

The cloud computing for IT professionals course is a an introductory course for IT professionals aiming to understand the fundamental concepts in a cloud computing environment. This course would teach you the need and use for different technologies in a cloud computing environment. Course Mode – Online and …

3 practical uses of wireshark

This article explains 3 practical uses and scenarios where wireshark tool can be used . Wireshark is one of the worlds best protocol analyzer. It can be used to effectively troubleshoot networks and pinpoint problems. Network troubleshooting Wireshark can be effectively used for troubleshooting networks. The tool can …

How to check if DNS is working

This article understands how to check if your DNS is actually working or not. DNS is used for resolving the domain name into IP address. In the below topology, the PC is connected to a router, which is connected to the internet. The PC has received appropriate IP …

Top Skills for Network Engineers

This article lists the top skills for network engineers. 1. TCP/IP TCP/IP is a must have skill for network engineers. In today’s distributed network environment, components from different vendors would be used. TCP/IP is the common protocol suite which would be used for inter networking. Network Engineers should …

Python IP Scanner

The Python IP scanner is a command line tool which takes the IP addresses to be scanned on the network. The tool displays the IP addresses which are shutdown and up. The final count is displayed based on the number of systems which are up and running on …

Python Scapy tutorial

This tutorial shows how to send a icmp ping packet with Python and Scapy. The tool which is named as L3 troubleshooting tool sends a ping packet to the destination and prints the response. The 1st step is to create a python file using the command vi l3tshoot.py …