Introduction and installation of ROS soft Routing

Introduction and installation of ROS soft Routing
I am a network engineer who deals with firewalls, routers, and switches throughout the company. In an enterprise, traffic control and behavior management devices are required to ensure normal internet access and speed-limit downloading of users. For network security, users must be authenticated; to enable Internet users to log on to Intranet systems such as OA and ERP for SOHO mobile office, dedicated VPN devices are required. To implement the above functions, you need professional firewall, router, traffic control, and VPN devices. Each device is expensive and tens of thousands of yuan is needed. For a small and medium-sized enterprise, it is indeed a very large expenditure. Therefore, I strongly recommend a soft route, Router OS, or ROS for short. Soft routing is relative to hard routing. Hard routing is a hardware router, which is commonly referred to as Cisco and Huawei routes. It is an iron box when it leaves the factory, which integrates dedicated CPU and ASIC chips, have their own dedicated operating systems, such as Cisco IOS and Huawei VRP. It features high processing speed, good after-sales service, special technical manuals and after-sales support teams. Soft routing is actually a set of routing software systems. you can install this routing system on a common X86 server or PC. I know the soft routes include sea spider and weimeng, among which the most powerful is ROS. ROS is a Linux-based Router system produced by Mikrotik in Latvia, a small country in Eastern Europe. Through this system, you can change an ordinary PC computer into a professional router, almost all the network needs of small and medium-sized enterprises can be achieved. ROS features: NAT and PPPOE (client and server) remote VPN and site-to-site VPN, QOS Rate Control, firewall functions, multi-exit redundancy and load, Policy Routing, RIP and OSPF dynamic routing, authentication and billing, VRRP, NTP. The key is the low cost of ROS, which enables many small and medium-sized enterprises to achieve both the required functions and IT costs. Currently, ROS is also used by some second-hand ISPs who resell bandwidth. By leasing a large amount of bandwidth to a level-1 operator and contracting some communities, they set up ROS to provide PPPOE dial-up and speed limit functions for users in the community. In existing cases on the Internet, there is one ROS with more than 20 thousand terminals, which demonstrates the stability and reliability of ROS. To sum up the features of ROS, the price advantage of hardware routers is generally expensive. For example, Cisco enterprise-level routers usually cost tens of thousands of yuan. The system's stable ROS is based on the Linux kernel, and the underlying system is secure. It can run reliably for a long time without as many vulnerabilities as Windows. ROS supports programming because it is a Linux kernel and supports scripts, which may implement various complex functions. Powerful functions a ROS can be a router, firewall, traffic control, authentication device, VPN device; it can achieve dynamic routing, data forwarding, NAT, traffic control, PPPOE, WEB Authentication, PPTP, L2TP VPN, and other functions. It can be said that it is really powerful. A wide range of ROS can be used in enterprises, Internet cafes, small-scale operators, and other places. Now there are many Internet cafes and small-sized operators using ROS, and there are already many mature cases. ROS installation: if the reader company needs to use ROS, they can directly purchase their official hardware products. There is a box where the CPU, chip, and hard disk are integrated, and ROS software is installed on the hard disk. Or the reader prepares a server or a stable PC and buys a set of ROS for installation. ROS is a commercial software that requires payment. You need to purchase a License to activate ROS. ROS calculates the license based on the hard disk, so the hard disk cannot be changed after ROS is installed. I am using older ROS versions, 3.2. The latest version is the same as the installation steps. By default, only the "system" option is selected. These are ROS modules. For example, PPP includes PPTP and PPPOE, and DHCP is the module for Dynamic Host Allocation Protocol, select the required functions. Press "A" on the keyboard to select all, and press "I" (install) to install. If you want to retain the old configuration, select Y. After the input is complete, the system restarts. After the restart, the system enters the following interface. The default user name is admin and the password is blank. Enter it to log on. At this point, ROS installation is complete.