gre tunnel explained
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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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MikroTik Wireless AP Configuration with DHCP using Winbox | October 22, 2019
MikroTik Wireless Router is one of the most popular and stable WiFi Routers. WiFi Zone for an ISP or for an office or for a home can easily be configured with MikroTik WiFi Router. MikroTik has a lot of WiFi Routers that can be used as a WiFi Access Point (AP), a WiFi Station or a WiFi Repeater. MikroTik Wireless Router can also be used as both WiFi Station and WiFi AP simultaneously. The simple usage of MikroTik Wireless Router [...]
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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% [...]
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Free Web Content Filtering Software for Home Internet | August 10, 2024
We always want to keep safe our home or business internet from unwanted content. There are many internet content filtering softwares those can be used to filter internet content. Among these, OpenDNS is a Free Web Filtering Software used to keep safe home or business internet content. OpenDNS is a DNS based internet content filtering solution. If we use OpenDNS nameservers as DNS, it handles DNS request and filter Malware, Phishing and adult content related websites and denies access. Besides [...]
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MikroTik DHCP Server Configuration with Radius Server | January 24, 2018
The Dynamic Host Configuration Protocol (DHCP) is a client-server protocol that is used to assign an IP address and other network configuration parameters dynamically to each device on a network so that they can communicate with other IP networks. DHCP Server is popularly used in an Enterprise Office Network because in an office network various types of IP devices such as Laptop, Desktop, Tablet, Smartphone, IP Phone and so on are maintained and almost all IP devices support DHCP. An ISP Network can also be [...]
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Ubuntu Server Set Static IP Address with Netplan | July 1, 2021
Ubuntu Server is one of the most popular open source sever operating systems. Ubuntu Server can be used in production without any hassle. In my previous article, I discussed how to install Ubuntu Server’s latest version (Ubuntu Server 20.04) with LVM. In this article, we are going to see how to assign static IP address in Ubuntu Server with Netplan network management tool. Netplan Since Ubuntu Server 17.10, Netplan is being used as the default network management tool instead of [...]
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MikroTik RouterOS User Authentication via RADIUS Server | November 19, 2017
MikroTik RouterOS has a strong local user database that is enough to manage a single MikroTik RouterOS user. But if your network has more than one MikroTik Routers, it is always better to use a RADIUS server to manage RouterOS user centrally. MikroTik User Manager RADIUS Server is a centralized user authentication and accounting application that gives the ISP Company or network administrator ability to manage not only RouterOS users but also PPP, Hotspot, DHCP and Wireless users. How to [...]
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MikroTik RouterOS 7 Quick Setup using Winbox 4 | October 6, 2024
MikroTik RouterBoard and MikroTik Wireless Router are popularly used now a days. MikroTik RouterBoard is used in ISP Network and MikroTik Wireless Router is specially used for home users. MikroTik RouterBoard requires custom configuration because it is used for large network. On the other hand, MikroTik Wireless Router is used in home for a small network. MikroTik Wireless Router requires quick setup because home users are so hurry and not so technical. So, MikroTik RouterOS 7 provides a quick setup [...]
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MikroTik UserMan RADIUS Server Customers, Users and Routers | November 13, 2017
MikroTik User Manager RADIUS Server is a centralized user authentication and accounting application that gives the ISP Company or network administrator ability to manage MikroTik RouterOS user, PPP user and Hotspot user so smoothly. There are two methods to install MikroTik User Manager RADIUS Server in your network. You can install User Manager Package either on a physical RouterOS or on a dedicated Server Machine or on a Personal Computer where RouterOS is running. How to install and configure User [...]
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What Are the 7 Layers of OSI Model and How Do They Work | October 5, 2021
The OSI Model stands for Open Systems Interconnection Model, a conceptualized framework used to describe the seven layers of a telecommunication system or network. It was established as an international standard in the year 1984 by the International Organization for Standardization. This model helps visualize how networks operate and is still used today to figure out and solve network problems, such as by a web development company. In this article, we will talk about the 7 layers of the OSI [...]
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