MikroTik RouterBOARD 750G - User Manual

RouterBOARD 750G
Quick Setup Guide and Warranty Information
First use
1. Connect your WAN cable to port 1, and LAN computers to ports 2-5
2. Set LAN computer IP configuration to automatic (DHCP)
3. RB750G Default IP address from LAN is 192.168.88.1 or http://router
Powering
The board accepts powering from the power jack or from the first ethernet port (Passive PoE):
● direct-input power jack (5.5mm outside and 2mm inside diameter, female, pin positive plug) accepts 8..28V DC
● first ethernet port accepts passive Power over Ethernet accepts 8-28V DC
Normally the power consumption of this device is 2.4W, under maximum load - 3.6W
Booting process
This device doesn't come fitted with a Serial Port connector, so initial connection has to be done via the Ethernet cable, using
the MikroTik Winbox utility. Winbox should be used to connect to the default IP address of 192.168.88.1 with the username
admin and no password.
In case IP connection is not available, Winbox can also be used to connect to the MAC address of the device. More
information here:
http://wiki.mikrotik.com/wiki/First_time_startup
In case you wish to boot the device from network, for example to use MikroTik Netinstall, hold the RESET button of the
device when starting it until the LED light turns off, and RB750G will start to look for Netinstall servers.
By default, the device is preconfigured with a simple firewall on the WAN port, this configuration can be viewed when first
connecting to the Router via Winbox. It will ask whether to keep this configuration or clean it to use your own.
Extension Slots and Ports
● Five individual Gigabit Ethernet ports, supporting automatic cross/straight cable correction (Auto MDI/X), so you can
use either straight or cross-over cables for connecting to other network devices. The First Ethernet port accepts 8..28
V DC powering from a passive PoE injector.
Buttons and Jumpers
● ROS reset jumper hole (on the bottom of case, behind one of the rubber feet) – resets RouterOS software to
defaults. Must short circuit the metallic sides of the hole (with a screwdriver, for example) and boot the device. Hold
screwdriver in place until RouterOS configuration is cleared.
● RouterBOOT reset button (RESET, front panel) has two functions:
● Hold this button during boot time until LED light starts flashing,
release the button to reset RouterOS configuration (same result as with reset hole)
● Hold this button during boot time longer, until LED turns off,
then release it to make RB750G look for Netinstall servers.
See www.routerboard.com for more information. Contact support@mikrotik.com for support questions. rev. A (6-Nov-2009)

Summary

First Use and Setup

Powering the RouterBOARD

Booting Process and Initial Connection

Hardware Features and Ports

Buttons and Jumpers

Operating System Support

Copyright and Warranty Information

Overview

1. Function Description
2. Usage Features
3. Maintenance Features

The RouterBOARD 750G is a compact and versatile networking device designed for various routing and network management tasks. It functions primarily as a router, enabling network connectivity and traffic management for both home and small office environments. The device is preconfigured to facilitate a quick setup, making it accessible even for users with limited networking experience.

Function Description

At its core, the RouterBOARD 750G serves as a network router, facilitating the connection of multiple devices to a single internet source. It manages network traffic, assigns IP addresses, and provides basic firewall capabilities to secure the network. The device is capable of handling Gigabit Ethernet speeds, ensuring high-speed data transfer across the local network and to the internet. It supports the MikroTik RouterOS operating system, which offers a wide range of advanced networking features, including routing protocols, VPN, quality of service (QoS), and more. This makes it suitable for scenarios requiring more sophisticated network control than typical consumer-grade routers. The device can also be configured to boot from the network, allowing for centralized management and deployment of its operating system using tools like MikroTik Netinstall.

Usage Features

The RouterBOARD 750G is designed for ease of use, starting with its initial setup. Users can connect their WAN cable to port 1 and their LAN computers to ports 2-5. For immediate network access, LAN computers should be configured to obtain IP addresses automatically via DHCP. The device's default IP address is 192.168.88.1, accessible through a web browser or the MikroTik Winbox utility.

Powering Options: The device offers flexible powering options. It can be powered via a direct-input power jack, accepting 8-28V DC, or through its first Ethernet port using passive Power over Ethernet (PoE), also accepting 8-28V DC. This PoE capability simplifies deployment in locations where a power outlet might not be readily available, allowing power to be delivered over the Ethernet cable itself. The typical power consumption is low, ranging from 2.4W to a maximum of 3.6W under full load, making it an energy-efficient choice.

Ethernet Ports: The RouterBOARD 750G features five individual Gigabit Ethernet ports. These ports support automatic cross/straight cable correction (Auto MDI/X), meaning users do not need to worry about using specific types of Ethernet cables (straight-through or crossover) when connecting to other network devices. This simplifies cable management and reduces potential connection errors. The first Ethernet port is unique as it also accepts passive PoE input, further enhancing its deployment flexibility.

Initial Configuration: Upon the first connection, the device presents a simple firewall configuration on the WAN port. Users are given the option to keep this default configuration or clear it to implement their own custom settings. This guided initial setup helps users quickly establish a secure and functional network.

Winbox Utility: For more advanced configuration and management, the MikroTik Winbox utility is the recommended tool. Winbox allows users to connect to the device using its default IP address (192.168.88.1) with the username "admin" and no password initially. If an IP connection is not available, Winbox can also connect to the device using its MAC address, providing a reliable fallback for initial access or troubleshooting.

Maintenance Features

The RouterBOARD 750G incorporates several features to facilitate maintenance, troubleshooting, and system recovery.

Reset Options: The device includes two primary reset mechanisms:

1. ROS Reset Jumper Hole: Located on the bottom of the case, behind one of the rubber feet, this jumper allows users to reset the RouterOS software to its default settings. To perform this reset, a metallic object (like a screwdriver) must short-circuit the sides of the hole while the device boots. The screwdriver should remain in place until the RouterOS configuration is cleared. This is a hardware-level reset that ensures a complete wipe of the configuration.
2. RouterBOOT Reset Button (RESET, front panel): This button offers two distinct functions during boot time:
   • Configuration Reset: Holding the button until the LED light starts flashing, then releasing it, will reset the RouterOS configuration to its defaults. This achieves the same result as using the jumper hole but is more accessible.
   • Netinstall Mode: Holding the button for a longer duration, until the LED turns off, then releasing it, will put the RB750G into a mode where it looks for Netinstall servers. This is crucial for reinstalling the RouterOS operating system from the network, which can be useful for recovery from corrupted installations or for upgrading the OS.

Firmware Updates and Support: MikroTik provides ongoing support and updates for its RouterOS operating system. Users can find instructions and resources on the MikroTik website, including information on RMA procedures for failed units. The manual emphasizes that all goods come with a one-year warranty, covering defects in materials and workmanship under normal use. For specific support questions, users are directed to contact MikroTik's support team via email. The availability of detailed documentation and a support channel ensures that users can maintain their device effectively and resolve any issues that may arise.

Operating System: The device runs MikroTik RouterOS, starting from version v4. This operating system is known for its robustness and extensive feature set, allowing for highly customized network configurations. Regular updates to RouterOS often include bug fixes, security enhancements, and new features, which contribute to the long-term maintainability and security of the device.

MikroTik RouterBOARD 750G Specifications