Showing posts with label GNS3. Show all posts
Showing posts with label GNS3. Show all posts

Sunday, September 20, 2026

How to install GNS3 3.1.0a3 edition in Windows environment


Goal :- 

In real world, environment networks are used to test various problems in an emulation manner to diagnose the problems or for who are studying cisco studies or networking studies, it's the all-in-one best solution. All in one place in one your PC. So let's don't waste any time. Jump into the goal.


 Requirements:-

GNS3-3.1.0a3-all-in-one
GNS3.VM.VirtualBox.3.1.0a3  VM 
VirtualBox-7.2.16-174877-Win


Hello friends..!!!
Thanks participating with me my next technical blog, previously I prepared my older post for technical post, my goal is solve everything easily; anyone can understand,  simple manner to understand, here  I am explaining the technical content in clear manner, if  getting trouble to  understanding by reading, I am arranging the video solution too.. so you can  contintue the steps in a step-by-step manner. Today we will continue to learn the Gsn3 alpha edition. You can download here https://github.com/GNS3/gns3-gui/releases/download/v3.1.0a3/GNS3-3.1.0a3-all-in-one.exe
and for the virtual box link here 

https://download.virtualbox.org/virtualbox/7.2.18/VirtualBox-7.2.18-175117-Win.exe

for Virtual box image below the link
https://github.com/GNS3/gns3-gui/releases/download/v3.1.0a3/GNS3.VM.VirtualBox.3.1.0a3.zip



Video Solution:-




Monday, March 10, 2025

Configuring and implementation of HSRP on GNS3 with live link failure simulation

Hot Standby Router Protocol 

Introduction:

HSRP is  routing protocol HSRP stands for HOT STANDBY ROUTER PROTOCOL, it provides the network redundancy for the IP networks, it’s a dynamic router redundancy mechanism. It’s a Cisco proprietary protocol which provides redundancy for local subnets. HSRP has a good feature like we configure two or more routers as a standby routers and only single router works as active router. Active router responsible for forwarding the traffic. If the active router fails,

 standby router will takeover the responsibilities for the active router. HSRP offers unique advantages and some limitations. This protocol reveals deep dive into the functions, benefits, and real-world data, HSRP to help you understand the best suited for the real network needs. HSRP acts as a backup plan ensure that if the primary router fails another seamlessly takes over the responsibility of the primary router. It is a redundancy protocol that ensures high availability in network environment.

 It has 2-versions like version 1 & 2
 version 1 : The messages are multicast at 224.0.0.2 and uses the UDP port 1985. This version allows group number range from 0 to 255. 
version 2 : The messages are multicast at 224.0.0.102 and uses the UDP port 1985. This version allows group number range from 0 to 4095.



Capability Version 1 Version 2
Hello timer units Seconds Milliseconds
Supports both IPv4 and IPv6 No (only IPv4) Yes
Number of groups supported 256 (from 0 to 255) 4096 (from 0 to 4095)
Virtual MAC (-- or --- is the HSRP group number in HEX) 0000.0C07.AC-- 0000.0C9F.F---
Multicast address 224.0.0.2 224.0.0.102

Network diagram:




 Here in the video solution I explained the link failure simulation only there you can edit the timers and preempt..
That is based on the delaying the pinging..
Hopeful this very useful I think


Video Solution :