gre tunnel basics
Most Relevant Content
MikroTik Site to Site GRE Tunnel Configuration with IPsec
VPN (Virtual Private Network) is a technology that provides a secure tunnel across a public network. A private network user can send and receive data to any remote private network using VPN Tunnel as if his/her network device was directly connected to that private network. MikroTik provides GRE (Generic Routing Encapsulation) tunnel that is used to create a site to site VPN tunnel. GRE tunneling protocol which can encapsulate a wide variety of protocols creating a virtual point-to-point link was originally developed by Cisco. GRE is a stateless tunnel like EoIP and IPIP. That means if the remote end of the tunnel goes down, all traffic that was routed over the tunnels will get blackholed. To solve this problem, RouterOS have added ‘keepalive’ feature for GRE tunnels. By default keepalive is set to 10 seconds and 10 retries. GRE adds an outer header mentioning the entry point of the tunnel (SourceIP) and the exit point of the tunnel (DestinationIP) but the inner packet is kept unmodified. GRE tunnel only encapsulates IP packets but does not provide authentication and encryption. GRE tunnel with IPsec ensures IP packet encapsulation as well as authentication and encryption. IPsec usage makes your packets secure but [...]
- »
Unlocking Digital Opportunities: A Beginner’s Guide to Computer Networking | October 14, 2025
Summary Computer networking has created the digital world, enabling communication networks that unite various regions of the world and connect any device in some way or another. Networking provides new opportunities to secure employment, act as freelance workers, or even pursue volunteer work, which is why it is worth investing in for career development. Being practical should be valued even more than theory. Even after setting up a home lab, reviewing real projects, and consulting trusted sources, you will learn [...]
- »
MikroTik Block Website (Facebook, YouTube and Other Sites) | October 12, 2017
MikroTik Firewall is a powerful security tool that can be used to block unwanted websites. If you are a network administrator, sometimes it may be your requirement to block any website like Facebook, YouTube, Pornographic site and so on. To block these types of websites, you just need to create Firewall Rules that will drop any connection to these websites through your MikroTik Router. MikroTik Firewall basic concept such as what is MikroTik Firewall, what is MikroTik Firewall Rule, how [...]
- »
MikroTik Configuration with PPPoE WAN Connection | July 18, 2018
MikroTik Router is a popular routing device to any network administrator because of having a lot of network features availability. MikroTik PPPoE Client is a special feature that is used to connect any PPPoE Server. If your ISP provides PPPoE connection, MikroTik Router is able to connect that PPPoE Server using PPPoE Client. In my previous article, I discussed how to configure MikroTik Router with static WAN connection and in this article I will show how to configure MikroTik Router [...]
- »
The Role of Computer Networking in Modern Surveillance and Security | October 17, 2023
In the present computerized age, computer networking is significant in ensuring modern surveillance and security frameworks are viable and productive. The progressions in innovation have prompted the improvement of innovative arrangements, for example, solar power cameras, that depend on computer networks to upgrade surveillance capacities. This article investigates the role of computer networking in modern surveillance and security frameworks, with a particular spotlight on integrating solar-powered cameras. What is Computer Networking? A computer network gathers interconnected hubs or computing gadgets that [...]
- »
Boost Network Performance with MikroTik FastTrack in RouterOS 7 | October 27, 2025
Network administrators often face the challenge of balancing speed and stability. MikroTik’s FastTrack feature, introduced in earlier RouterOS versions and optimized in RouterOS 7, is a game-changing solution that dramatically enhances performance by reducing CPU load and improving packet handling efficiency. 🚀 What Is MikroTik FastTrack? FastTrack is a special processing method in RouterOS that allows packets from established and related connections to bypass the standard connection tracking process. In simple terms, once a connection is identified as safe and [...]
- »
How to Create Free SSL/TLS Certificate with OpenSSL | July 23, 2021
SSL/TLS certificate is required to encrypt data sent over internet communication. Without encryption, the sent data can be hacked by the middle man attack. SSL/TLS certificate is usually a pair key, public key and private key, solution where data is encrypted with public key and decrypted with private key. In public communication, public key is required to be signed by a CA (certificate authority) but in private communication, there is no need to be signed by any CA. If we [...]
- »
How to Create Gmail Account Successfully | August 17, 2015
Email is the heart of any business communication today. Not only enterprise companies but also our personal life’s activities are mostly depended on email. So, every person should have an email account today. There are many online companies (such as Gmail, Yahoo and Hotmail) who are providing free email services for any online users. Among these online companies, Gmail is the most popular free email service by Google with 15 GB free storage facility. Gmail has huge features to maintain [...]
- »
Enable F8 Menu to Enter Safe Mode in Windows 8 & 10 | August 27, 2015
Windows is the most popular operating system in the world. No computer user can go a single day without windows operating system. As windows is a popular operating system, it has a lot of viruses also. But windows provides various tools for removing these viruses. For removing any unwanted program, windows safe mode is a best option. A popular way to open windows safe mode is windows Advanced Boot Options. Advanced Boot Options provides different run levels for windows users so [...]
- »
MikroTik Load Balancing and Link Redundancy with PBR | March 31, 2019
In computer networking, the Load Balancing technique is used to send network traffic over multiple gateways. If you have multiple ISP connections available, you can use load balancing technique to establish a stable network. You may now ask, why will I use multiple ISP connections? What are the benefits to use multiple ISP connections in my network? For your satisfaction, the following points are some reasons to use load balancing technique in your network. No ISP can give you 100% [...]
More Similar Content
You May Also Like
