vrrp with local dhcp

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  • MikroTik VRRP Configuration with DHCP Server

    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 again. In my previous article, I discussed how to configure MikroTik VRRP to establish a high available internet network. But most of the office network as well as ISP network use DHCP Server to assign their device IP automatically. So, in this article I will show how to configure MikroTik VRRP with active and backup DHCP Server. Network Diagram To configure VRRP network with MikroTik DHCP Server, I am following a network diagram like the below image. In this network, two MikroTik RouterOS (Master_RouterOS and Backup_RouterOS) are the member of a MikroTik VRRP. So, when both routers are up and running, network traffic will pass through Master_RouterOS. If Master_RouterOS fails to operate due to hardware failure or any other cause, [...]

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    MikroTik PPPoE Server Configuration with freeRADIUS Server |   January 20, 2019

    PPPoE Service is one of the most popular services in MikroTik Router. It is specially used by the local ISP provider for the simplicity of client connection. MikroTik PPPoE Service accepts user or client authentication and authorization both MikroTik local user database and RADIUS user database. RADIUS Server provides an efficient way to manage user authentication, authorization and accounting.  FreeRADIUS is a high performance RADIUS suite that provides user authentication, authorization and accounting facility for a number of network devices [...]

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    MikroTik Hotspot Login by MAC Cookie Configuration |   July 10, 2020

    MAC Cookie is a newly introduced Hotspot feature in MikroTik Router. MAC Cookie is specially designed to improve accessibility for smartphones, laptop and other mobile devices. MAC Cookie is not a basic login method rather it is an extension of basic Hotspot login method such as HTTP CHAP, HTTP PAP and HTTPS. So, when MAC Cookie is used with these basic Hotspot login methods, it improves the Hotspot user accessibility. In my previous article, I discussed MikroTik Hotspot basic configuration [...]

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    MikroTik HotSpot One to One NAT/Universal HotSpot NAT |   September 27, 2020

    MikroTik Hotspot is an awesome service that can be customized widely. When MikroTik Hotspot is enabled on an interface, it adds dynamic destination NAT rules which will redirect all HTTP and HTTPS requests from unauthorized users to the Hotspot authentication proxy. So, no user can get internet access in Hotspot network without authentication. MikroTik Hotspot also uses one to one NAT providing an IP address from selected IP Pool and this IP address handles user’s data and limitation. Sometimes we [...]

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    Firewalld Installation and Configuration in Ubuntu Server |   May 5, 2022

    Firewalld is an awesome host based firewall management tool for Linux Operating System. Firewalld has developed on Fedora but it is now available for almost all Linux distributions. So, Firewalld can be installed in Ubuntu Server although Ubuntu Server has UFW as the default firewall system. Firewalld is more robust and easy to maintain than UFW, I think. So, I am going to discuss how to install and configure Firewalld in Ubuntu Server.  Installing Firewalld in Ubuntu Server By default [...]

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    MikroTik Hotspot Customization |   April 5, 2017

    Hotspot is one of the most popular services in MikroTik router. MikroTik Hotspot Gateway is a policy to authorize network clients before to access local network resources as well as public network resources through MikroTik router. In a Hotspot network, the user can login or authenticate using almost any web browser, so there is no need to install any additional software to client end. As Hotspot login prompt is a webpage, Hotspot service can effectively be used as an advertising medium of [...]

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    MikroTik Dual WAN Load Balancing with Failover using PCC |   May 27, 2018

    Hi geek, going through this article means you are finding Load Balancing as well as Link Redundancy solution for your MikroTik network because you already have multiple WAN connections or you are planning to lease multiple WAN connections. MikroTik has various Load Balancing and Link Redundancy methods such as ECMP, PCC and so on. ECMP method provides an easy configurable load balancing with failover solution but it has some known issues too in a large network. On the hand, PCC [...]

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    DNS Server Configuration on CentOS 7 (Caching DNS with BIND) |   June 24, 2019

    DNS (Domain Name System) Server is an essential part to any computer network. Today web communication cannot imagine without DNS Server. DNS is a client server protocol where DNS Client requests for the domain name resolution and DNS Server response on it. Every network should have a DNS Server because local DNS Server improves network performance by caching DNS information and serving DNS request locally. DNS Server can be configured either Windows or Linux operating system. In this article, I [...]

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    Block Internet Access at a Certain Time in MikroTik RouterOS |   August 1, 2024

    We often find how to block or allow internet access at a certain time in our LAN network specially in WiFi network. Time based internet access is so useful for controlling Kids internet in any family or managing stuff internet accessibility in any office or other network. MikroTik RouterOS offers a feature named Kid Control to block internet access at a certain time. This feature is so useful for the parents or network engineers who want to block internet access [...]

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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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