gre tunnel 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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Essential Networking Skills for Job Seekers in IT industry | March 18, 2025
The Information Technology (IT) industry is one of the most dynamic and rapidly evolving fields in the modern job market. With continuous advancements in technology, businesses are always on the lookout for skilled IT professionals who can adapt to new trends, troubleshoot complex systems, and enhance cybersecurity measures. However, technical knowledge alone is not enough to secure a job in the IT industry. One of the most critical factors in landing a job and advancing in an IT career is [...]
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Restrict Internet Access Based on MAC Address in MikroTik | February 4, 2017
MikroTik router has a lot of features by which a network administrator can design his network as he likes. As a network administrator, sometimes you may need to allow internet access some specific devices. If other devices try to access internet, they will be rejected by your router. For example, say, you have configured a simple network like below diagram. In this network, you have configured WAN, LAN, Gateway, DNS and NAT. Also you have created queue rules for limiting [...]
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MikroTik Dual WAN PCC Load Balancing with PPPoE Server | July 5, 2018
Hi geek, you are here because you are finding a complete MikroTik Dual WAN PCC Load balancing and Link Redundancy solution with PPPoE Server because you have managed two ISP connections and want to provide an uninterrupted internet connection to your clients. You also want to manage your LAN clients with PPPoE Server because it provides a hassle free network administration. MikroTik PCC provides 100% reliable Load Balancing and Link Redundancy network and in my previous article I discussed how [...]
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CentOS 8 Networking Configuration Using nmtui Tool | December 14, 2020
The first task after completing CentOS 8 fresh installation is to configure its networking so that it can be accessed from other network devices. In my previous article, I discussed how to install CentOS 8 Graphical User Interface (GNOME Desktop) with step by step screenshots. If you are a new CentOS 8 user and have not yet installed CentOS 8 on your server machine, feel free to follow that article and install CentOS 8 GNOME Desktop according to the article. [...]
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How to Secure MikroTik RouterOS Login Users | February 19, 2021
MikroTik RouterOS is a bridge between WAN and LAN. So, it is mandatory to apply RouterOS login user security policy. Otherwise, RouterOS may so insecure.
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MikroTik Hotspot Setup with Radius Server (User Manager) | January 6, 2018
Hotspot is one of the most popular services in MikroTik Router. It is popularly used in Hotel and Restaurant, Railway Station or Airport, School or University Campus and so on. Even ISP network and office network also use MikroTik Hotspot for authenticating network clients/users. Hotspot user can be managed with Hotspot’s local user database or with a Radius Server. Radius Server gives facility to manage Hotspot user’s bandwidth and accounting easily and centrally. So, Hotspot setup with Radius Server can [...]
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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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Troubleshooting Common Issues with Security Cameras in MikroTik Networks | February 7, 2025
30 Seconds Summary When fixing security cameras on MikroTik networks, you might see issues like bad video quality, connections dropping, motion detection not working, and security weaknesses. These problems can happen because of not enough internet speed, network congestion, IP conflicts, old software, or weak security. To fix these, make sure you have enough internet speed, set up the IP settings correctly, give camera traffic priority, and update the software regularly. Also, protect the cameras with strong passwords and encryption. [...]
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