• MikroTik Radius Configuration with FreeRADIUS

    FreeRADIUS is a high performance RADIUS suite that provides authentication, authorization and accounting facility for a large number of network devices including MikroTik Router. Although MikroTik has user manager RADIUS service to provide authentication, authorization and accounting facility but it is not free for customization and not suitable for medium to large organization. On the other hand, freeRADIUS is free for customization according to your organization requirements. But freeRADIUS has to be customized by you. In my previous article, I discussed how to install and configure freeRADIUS on CentOS 7 Linux distribution. In this article, I will show how to connect MikroTik Router with freeRADIUS Server and authenticate MikroTik login with freeRADIUS users. Network Diagram For this article configuration, I am following a network diagram like below image. In this network, MikroTik Router’s (RouterBOARD 1100 AHX2) WAN interface (ether1) is connected to internet through WAN distribution switch having IP address 192.168.40.8/25. MikroTik Router also has a LAN network having IP network 10.10.60.0/24. The freeRADIUS Server, installed on CentOS 7 Linux Server, is also connected to internet through WAN switch having IP address 192.168.40.10. So, MikroTik Router can see freeRADIUS Server through WAN interface and WAN switch. In this article, we [...]

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    FreeRADIUS Installation and Basic Configuration on CentOS 7 |   November 28, 2018

    FreeRADIUS is a modular, high performance and highly customizable open source RADIUS server. Anyone can use FreeRADIUS without any charge and can customize his RADIUS server according to his organizational requirements. In my previous article, I discussed how to install and configure user manager RADIUS server developed by MikroTik. The main disadvantage of user manager RADIUS server is ‘it is not customizable and not suitable for medium or large organization’. On the other hand, FreeRADIUS is giving facility to customize [...]

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    MikroTik VRRP Configuration with Load Sharing |   November 19, 2018

    MikroTik VRRP (Virtual Router Redundancy Protocol) ensures high availability internet network. If any organization requires uninterrupted internet connection, MikroTik VRRP implementation will be a vital solution for them. MikroTik VRRP creates a virtual router accumulating two or more physical routers and ensures uninterrupted internet connection keeping activate one physical router always. That means, if any physical router fails to operate due to any hardware failure, MikroTik VRRP uses another backup router for internet gateway until the running router comes back [...]

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    MikroTik VRRP Configuration with DHCP Server |   October 22, 2018

    MikroTik VRRP (Virtual Router Redundancy Protocol) ensures high available internet network. If any organization requires uninterrupted internet connection, MikroTik VRRP implementation will be a vital solution for them. MikroTik VRRP creates a virtual router accumulating two or more physical routers and ensures uninterrupted internet connection keeping activate one physical router always. That means, if any physical router fails to operate due to any hardware failure, MikroTik VRRP uses another backup router for internet gateway until the running router comes back [...]

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    MikroTik Hardware Redundancy with VRRP |   October 8, 2018

    MikroTik VRRP (Virtual Router Redundancy Protocol) ensures high availability internet network. If any organization requires uninterrupted internet connection, MikroTik VRRP implementation will be a vital solution for them. MikroTik VRRP creates a virtual router accumulating two or more physical routers and ensures uninterrupted internet connection keeping activate one physical router always. That means, if any physical router fails to operate due to any hardware failure, MikroTik VRRP uses another backup router for internet gateway until the running router comes back [...]

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    VLAN Routing Configuration between MikroTik RouterOS |   September 27, 2018

    VLAN (Virtual Local Area Network) is a logical topology that divides a single broadcast domain into multiple broadcast domains. It increases network security and performance as well as improves network efficiency. MikroTik VLAN routing configuration with manageable switch was discussed in previous article. Today we will learn how to configure VLAN between MikroTik RouterOS. This Router to router VLAN (layer3 VLAN) is useful when any ISP provide connection to one or more local ISPs who use MikroTik Router to maintain [...]

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    MikroTik Router Integration and Configuration on GNS3 |   September 19, 2018

    GNS3 is a network simulator software used by hundreds of thousands of network engineers worldwide to emulate, configure, test and troubleshoot virtual and real networks. GNS3 can talk a large number of network vendors including MikroTik. MikroTik introduces Cloud Hosted Router (a RouterOS version) that is used to run as virtual machine and a virtual machine can easily be integrated with GNS3. So, network administrators who are fond of MikroTik Router can now configure, test and troubleshoot their MikroTik network [...]

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    GNS3 Installation and Configuration Step by Step in Windows |   September 14, 2018

    GNS3 (Graphical Network Simulator) is one of the most popular network simulator software used by hundreds of thousands of network engineers worldwide to emulate, configure, test and troubleshoot virtual and real networks. GNS3 supports a large number of vendors such as MikroTik, Cisco, Juniper, Windows, Linux and many other vendors. GNS3 can be installed on Windows, Linux and MAC Operating System. In this article, I will show how to download and install GNS3 application in Windows Operating System. I will [...]

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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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    CentOS 7 Network Configuration Using nmtui Tool |   August 27, 2018

    After completing CentOS 7 fresh installation, the first task to a system administrator is to configure its network so that it can communicate to other network devices. In my previous article, I discussed how to install CentOS 7.5 GUI (GNOME Desktop) step by step. If you are a new CentOS 7 user and yet you have not installed CentOS 7.5 on your server machine, feel free to study my previous article and install CentOS 7.5 GNOME Desktop according to that [...]

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