mikrotik gre over ipsec
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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 [...]
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6 Best VPN Providers to Consider in 2022 | October 19, 2021
There are many VPN providers on the market. It can be difficult to know which one is best for you, but luckily we have compiled a list of six of the best! Get ready for our top picks. What is a VPN? A VPN, or virtual private network, hides and encodes your internet traffic so that you can surf the web more securely. By doing so, it protects your data from hackers and prying eyes. Think of a VPN as [...]
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Upgrading MikroTik RouterOS and Firmware using Winbox | September 9, 2018
MikroTik RouterOS is in constant development and new features or bug fixes are frequently available, sometimes even monthly. So, it is always recommend upgrading your MikroTik RouterOS to a latest and stable version before beginning any configuration. Sometimes you may find that your production router is required to be upgraded to a new version based on some logical reasons such as: A new feature is available to a new update and you need to implement that new feature. New version [...]
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Red Hat/CentOS 7 Linux Installation (Minimal Packages) | April 18, 2017
Linux is a free and open source operating system developed by Linus Torvalds on September 17, 1991. It is mainly used as server environment. A lot of Linux distributions are present today. Among them, Red Hat Linux is used as enterprise Linux. Red Hat is also known as Red Hat commercial Linux that means Red Hat is a paid service program. CentOS (Community Enterprise Operating System) is another Linux distribution that provides a free and open source, enterprise-class, community-supported server platform functionally [...]
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FreeRADIUS MySQL Database GUI with phpMyAdmin on CentOS 7 | January 30, 2019
FreeRADIUS is a high performance RADIUS Server that accepts a large number of networking devices as RADIUS Client including MikroTik Router. MySQL is one of the best user sources for freeRADIUS server. In my previous article, I discussed how to install freeRADIUS server on CentOS 7 and how to integrate MySQL module with freeRADIUS server. I also discussed how to create user group and profile in MySQL database server and authenticate MikroTik PPPoE client with MySQL database user. I used [...]
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Static Routing Configuration in MikroTik Router | February 11, 2018
Static Routing is an important topic to any network administrator who works with multiple MikroTik RouterOS and wants to establish communication among Router’s local networks. For example, say a network administrator maintains two MikroTik RouterOS connected with any communication medium and each RouterOS has its own networks and network resources such as servers, printers etc. and he wants that each network and network resources will be accessible from other networks. In this case, static routing configuration between two RouterOS will [...]
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MikroTik RouterOS Device Mode: Home, Basic, and Advanced – and Their Impact on Hotspot Setup | November 4, 2025
MikroTik RouterOS offers flexible configuration options for everything from home routers to ISP-grade hotspots. When setting up your MikroTik device, you’ll see a Device Mode option in Quick Set — allowing you to choose between Home, Basic, or Advanced modes. These modes define how much control you have over the router’s features and directly affect your ability to create and manage a Hotspot network. In this guide, we’ll explain each mode, show you how to check and change device mode [...]
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MikroTik IPIP Tunnel with IPsec (Site to Site VPN) | March 18, 2018
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 IPIP tunnel that is used to create a site to site VPN. IPIP tunnel is a simple protocol that encapsulates IP packets in IP to make a tunnel between two routers. To encapsulate [...]
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WireGuard Site to Site VPN Between MikroTik RouterOS 7 | September 29, 2022
WireGuard is a free, open source, secure and high-speed modern VPN solution. WireGuard is extremely easy to implement but utilizes state-of-the-art cryptography. WireGuard can be used as either Client-Server VPN technology or Site to Site VPN technology. From the RouterOS 7, MikroTik introduces WireGuard VPN as their native package. So, who are using RouterOS 7 can use WireGuard VPN and can implement both client-server and site to site VPN with WireGuard free VPN server. In my previous article, I discussed [...]
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Linux Text Editor | September 7, 2017
Everything is file in Linux operating system. So, anyone who wants to work with Linux operating system (specially, Red Hat or CentOS) must learn how to edit files in Linux operating system. Because, it is always prefer to avoid graphical user interface (GUI) for changing system configuration parameters in Linux operating system unlike Windows operating system. You should be expert enough to edit any file in Red hat Linux operating system otherwise you will face a lot of difficulty to [...]
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