Showing posts with label data networking. Show all posts
Showing posts with label data networking. Show all posts

Sunday 15 November 2020

Setting up a bridged network with ENH200

Configuring the Engenius (ENH202) as a bridge using WDS mode.

This is a hands-on tutorial I prepared for one of my classes in Semester 1 of 2020 on WLAN Configuration. The class was divided into four teams and given an ENH202 device to configure and then pair or bridge with another team. I gave them these instructions below and asked them to configure the bridges and take screenshots of each step for documentation.   
 

What is WDS Bridge Mode?

In the WDS Bridge Mode, the ENH202 can wirelessly connect different local area networks by configuring each device's MAC address and security settings. The WDS Bridge Mode can bridge up to four local wired networks together as one logical network. Every computer on this logical network can see each other, sharing files as if they are in the same location. With 600mW output power and MIMO antenna technology, the connection distance can extend beyond 1000 feet with good performance, assuming the antenna are within line of sight (LoS). The WDS bridge network is a MAC-based network that provides transparent bridging. Source: ENH200 Manual

WDS setup. Source: ENH200 Manual

Lab Topology:

The lab topology for this tutorial.

Device model: Engenius ENH200 device (802.11 b/g) 

The chart below will indicate to you what data rates and frequencies this model supports.

802.11 b/g supports 11-54mbps and operates at 2.4GHz.

Scenarios where this topology can be applicable.

  • WDS Bridge mode for point-to-point wireless bridging
  • Linking two buildings
  • IP camera that has no wireless capability
  • Linking main house to guest house
  • Once you understand the functionality, you can be able to apply it to other suitable use cases.

Components of this setup.

To begin, take note of the top MAC address labelled on the back of the device

Each device has a mounting hardware/bracket which is used for clamping the device to a pole.

Cabling

  • Use CAT5/6 STP (shielded) or better. Using UTP will not provide protection against ESD.
  • Also protects against EMI and other RF interferences
  • If possible run cables inside the pole (or conduit) to help insulate from any air surges of static
  • Never coil excess cable which lowers impedance.
  • Make sure your electrical system is properly grounded.

Other accessories 

May be included to ensure resistance to dust and water. These have to have IP65 grading.


Newer dual band devices support PoE pass-through on the secondary Ethernet port. You can use this port to tether (add it to the port) an IP camera.
PoE Injector (24V or 48V)

  • Let’s configure the EnGenius Wireless Bridges using the web browser to access the interface of the device.
  • This is where my students took over on the documentation

The screenshots for the steps below were done by Mark W., Solomon G., Bentley B. and Jonah W. (IS3 students of 2020). 

This is a tutorial designed specifically for IS304 Module 13 WLAN Configuration class.  

Group Name:             Solomon Garu, Bentley Besuin, Jonah Wo’otong and Mark Winduman.
Date:                           28-05-2020 (Thursday)

NOTE: Settings configured here are meant to emulate a mid-long range P2P wireless bridged network.

Let’s configure the EnGenius Wireless Bridges using the web browser to access the interface of the device.

Reset EnGenius ENH200 router to factory defaults

To reset the EnGenius ENH200 to its default settings, you have to do the following steps:

  1. Turn on router
  2. Press Factory Reset button and hold for at least 15 seconds
  3. Device restarts automatically
  4. Default settings have been restored

The unit will reboot automatically. Once the power light stops blinking, the unit has been reset and is ready to use. Resetting the router does not reset the firmware to an earlier version, but it will change all settings back to factory defaults.

Step 1: Access device using a wired connection.

Connect the Network Cable end to a laptop. Ensure the laptop has an IP in the range 192.168.1.2-254 /24

Using a web browser, type in the default IP address of the device.

Default IP: 192.168.1.1

Username: admin Password: admin

Step 2: Note the MAC addresses of both devices.

Note down the MAC addresses of both devices by looking at the either the back of the device or when you log in to the device it should be in the main page under System Information.

Image main page / system info: