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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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MikroTik PPPoE Server with Radius User Authentication | December 17, 2017
MikroTik PPPoE Server is popularly used in ISP Companies. Almost all Local ISP Companies use PPPoE service to manage their client’s connection. So, PPPoE Server Configuration places an important role in MikroTik RouterOS. MikroTik PPPoE Server configuration with local user database has been discussed in my previous article that is enough to manage PPPoE users for a single RouterOS. But if you have more than one RouterOS in your network or you need to manage your users remotely and more [...]
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VMware ESXi 6.7 Installation and Basic Configuration | November 17, 2020
VMware vSphere is the pioneer in virtualization. No other virtualization software is as feature rich as VMware vSphere. More than 500,000 enterprise data center are now using VMware vSphere. It is expected that most of the data center will be turned into virtualization near future. As VMware vSphere provides more feature than any other virtualization software, it is also expected that demand of VMware vSphere will be increased day by day. VMware ESXi is the foundation of VMware vSphere and [...]
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User Management in Linux (Red Hat/CentOS) | September 28, 2017
User management is an important part of Linux (especially Red Hat Enterprise Linux) system administration. Linux users can be administrated using user or group administration GUI (Graphical User Interface) tool as well as through Red Hat/CentOS Linux command prompt. But I will always suggest you to do command line user administration as much as possible because in production GUI will not be provided always. Many people who are learning Linux administration do not know all features of user administration command [...]
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MikroTik Site to Site OpenVPN Server Setup (RouterOS Client) | April 9, 2018
VPN (Virtual Private Network) technology provides a secure and encrypted tunnel across a public network. So, a private network user can send and receive data to any remote private network through VPN tunnel as if his/her network device was directly connected to that private network. MikroTik OpenVPN Server provides a secure and encrypted tunnel across public network for transporting IP traffic using PPP. OpenVPN Server uses SSL Certificates. So, OpenVPN Tunnel is a trusted tunnel to send and receive data [...]
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Why ISPs Should Embrace TR-069 ACS to Stay Ahead of Competitors | May 22, 2023
As the telecommunications industry becomes more competitive, local ISPs need to find ways to stay ahead of larger telcos and offer services that meet the changing demands of their customers. One of the solutions to this challenge is to implement TR-069 ACS server to help streamline network management, reduce costs, and increase efficiency. In this article, we’ll explore why the TR-069 ACS server is essential for medium-sized ISPs to stay competitive in today’s market. We’ll examine the challenges these ISPs [...]
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MikroTik User Manager Installation and Basic Configuration | December 15, 2019
MikroTik User Manager is a RADIUS application developed by MikroTik team and can be used without charge. User Manager is used for authentication, authorization and accounting of MikroTik RouterOS, PPPoE, Hotspot, DHCP and Wireless users. Although User Manager Package is developed by MikroTik it will not be found in RouterOS by default. So, we have to install User Manager Package manually if we wish to use this RADIUS application. User Manager can be installed on MikroTik RouterBOARD, MikroTik CHR or [...]
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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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Managing Disk Partition with the parted Tool in CentOS 7 | March 2, 2019
As a system administrator, sometimes you may require to manage partitions of your CentOS/Red Hat Linux Operating System. Partition management is always a risky task. But there are some useful tools those are so helpful to manage CentOS/Red Hat Linux disk partition easily. In my previous article, I discussed how to manage CentOS/Red Hat 7 HDD partitions with the fdisk utility. The fdisk tool is only eligible to manage MBR partition table. But GPT partition table is now becoming more [...]
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