gre 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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LVM Management in CentOS/Red Hat 7 Linux | March 15, 2019
LVM (Logical Volume Manager) is the recommended partition method for CentOS/Red Hat 7 Linux. Specially, if we work on Mail Server, File Server, FTP Server, Web Proxy Server or any application where disk space changes frequently, the LVM partition is mandatory in this case. In my previous article, I discussed how to install CentOS 7.5 with LVM partitioning. If you are new here or CentOS 7 is not yet installed, I will suggest you to follow my previous article and [...]
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MikroTik User Manager RADIUS Installation on RouterOS 7 | July 5, 2022
The User Manager is a MikroTik provided RADIUS Server packages. It can be used to manage users for small or medium level business. User Manger is not a default RouterOS packages. So, we have to install user manager as an extra package in RouterOS 7. RouterOS 7 has brought a massive change on User Manager package. The most important change is managing User Manager from Winbox while in RouterOS 6 the User Manager package can only be managed from Web [...]
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How to Properly Downgrade MikroTik RouterOS and Firmware | October 2, 2019
MikroTik RouterOS is in constant development and new features or bug fixes are frequently available, sometimes even monthly. So, it is always recommend upgrading MikroTik RouterOS to a latest and stable version before beginning any configuration. But sometimes you may face that the upgraded version is not working properly according to your demand or you may upgrade to a new version that you don’t want. In this case, you should come back to your workable RouterOS version and firmware. Upgrading RouterOS [...]
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Internet Connection Sharing Ethernet to Ethernet | September 22, 2015
Windows is the most popular operating system to any computer user. It is said that no computer user cannot go a single a day without windows operating system. Windows has a lot of default internet features which help to connect our computer to internet as well as it provides internet connection sharing facility. With Internet Connection Sharing (ICS) feature, you can turn your laptop into Wi-Fi hotspot or turn your desktop into a router to share your broadband connection with your family [...]
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WireGuard VPN Setup in MikroTik RouterOS7 with Windows OS | August 14, 2022
VPN (Virtual Private Network) is one of the most popular services in MikroTik RouterOS. A lot of VPN services (IPsec, EoIP, OpenVPN, PPTP, L2TP, IPIP etc.) are available in MikroTik RouterOS but in RouterOS7, a new VPN service named WireGuard has been introduced which is extremely simple yet first, secure and modern VPN. WireGuard uses cryptography to make it secure. In RouterOS7, WireGuard can be used either Client-Server (Road Warrior) VPN tunnel or site to site VPN tunnel. Using Client-Server [...]
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How to Block Tor Browser with MikroTik Router | June 12, 2019
Tor Browser is an alternative to VPN and Web Proxy that breaks blocking firewall rule. If any user installs and uses Tor Browser, he/she can hide the public IP address of router and can unblock blocked websites applied on a network. So, administrators should block Tor Nodes along with other blocking firewall rule. In my previous article, I discussed how to block VPN and Proxy access with MikroTik Router and in this article I will discuss how to block Tor [...]
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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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How to Block Free Proxy Access with MikroTik Router | May 21, 2019
Proxy Server is an alternative to VPN that breaks blocking firewall of a network. If any user uses free web proxy server with web browser, the web request is processed by the proxy server. So, blocking firewall rule is not applied on the proxy enabled PC. For this, system administrators should be careful enough to block free proxy servers along with blocking VPN access. In my previous article, I discussed how to block VPN access with MikroTik Firewall. In this [...]
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