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Creating A Point To Point Link Using Mikrotik Radios


While most clients are putting up point to multi-point internet services, in their residential houses and offices, because is cost wise, and requires the client to only provide a radio, which will be mounted at their end only, the ISP should in the other hand beware of the danger involved in interconnecting up to about six or more clients on a single base, hence if in any case that particular radio goes down, that means six of your clients are down at the same time. Furthermore, the management of these radios are given too much attention, in the case of climatic, frequency and throughput change although these challenges are nothing to experts, in the field. But what about considering shooting a point to point link, to a customer from your base station and then take a break of worries, about what might have happen by now and off all adjustments tactics.
For this reason am going to blog about how to configure a point to point link, using the Mikrotik Radio

Mikrotik and Ubiquiti are the best two, and the best enjoyable technical things that have happened to wireless connectivity in the information technology and networking industry. In addition to providing low-cost alternatives to Ericsson, Nira, ZTE, Huawei and the rest, they have made impact in affording flexibility and are not highly sensitive to power fluctuations like their expensive counterparts. I find Mikrotik router boards highly engineered and programmed to do even the most advance tasks in networking carrier which are being performed on Cisco core and management routers.
Mikrotik has been able to internetwork the ability of a core router and a wireless access point all in one board leaving the user with the ability to make the most out of it, by making it one of the best choices available whether for Point to point or point to multi-point set up.

When establishing a point to point link connection on Mikrotik, is easy now and straight forward and can even provide you with sufficient throughput and absolutely zero interference if configured properly. Point to point links, unlike point to multi-point links, are designed and optimized to narrow their spectrum, avoiding interference, and by thus, provide efficient data throughput down to the end user.

Before setting up any connection be it point to point or point to multi point, you must have carried out a site survey, mapping out the distance between the two locations as well as the altitude of both sites. This is important as it will help you in determining the expected altitude of your pole or mast at each of the locations, as well as in choosing the type of antenna you are to use to setup the connection.
After acquiring your pair of Mikrotik radios, for both ends it could be custom-built or fully assembled radios, if not fully assembled you will start by coupling the radio components, then you are ready for the configuration. Log on to your Mikrotik router through winbox and follow the steps below:

The first port of call for configuring any Mikrotik device is to manually change your systems IP address in order to communicate with the Mikrotik equipment effectively, so in this setup I have statically given my computer

Now that we are logged into the Mikrotik, we can set up the Mikrotik Point To Point link. But first all for me we are going to configure the access point which might be plugged directly into a switch in the main office, or a broadband router at home. To enable us to transparently bridge Layer 2 traffic across the link, we are going to bridge the Ethernet and the wireless interfaces together. Doing this will also allow a DHCP server to assign the Mikrotik a unique Network IP, which will allow for easy configuration in the future on your internal network, which may not be on the same network. To create a bridge simply select bridge from the left menu, a new window will appear within Winbox. Select the + sign to add a new bridge and give it a meaning full name e.g. Wireless bridge.
To assign ports to the bridge, click on bridge, click on "port"tab and add ports to your bridge. Add Ether 1 and Wlan1 and click OK.

Next, we are going to assign an IP address to the bridge port. It must not be assigned to the bridge. The IP can be assigned to any of the three interfaces. Either the Lan, Wlan1 or Bridge ports and it will work correctly but its usually best to assign it to the Wlan1 interface so that you can still access the radio remotely through the wireless interface even when the LAN has been disabled.

Lets configure the Wlan, to configure Wlan, click on Wireless, double click on Wlan1, and click on the wireless tab beside the "general"tab. Set Mode to bridge. For a point to point system, there is no difference between ‘ap bridge’ and ‘bridge’ wireless mode, create your SSID, select a frequency depending on what is available for your country, Set Wireless protocol so that it will change  to ‘nv2’, by implementing  this simple change, I have created a substantial layer of reliability to the wireless signal I am about to propagate, compared to the 802.11 WiFi mode. At this level no conventional wireless client such as laptop nor mobile device can pick the signal or communicate on the NV2 protocol as they don’t understand it, because it is  only Mikrotik devices that can use NV2 protocols.
Select your security profile which you have created, to secure your radio from unauthorized personals.

Click on the wds tab in the Wlan1 window, set wds mode to dynamic and select the bridge you created earlier as the wds default bridge.

Next is to configure your default route and NAT, If you already know that, move to the next step.

After setting up this radio configuration, we will then move to the second radio, meanwhile the configurations are almost the same. The only difference is that the mode will be set to station-wds and you have to put the frequency on the first radio in the frequency scan list of the second radio, provided you are not using a frequency from the default frequencies.

Once you have verify that all things are configured well on both radios, now you can then mount the first, making sure that your tilt it very well, facing the direction of the second location, using a compass to determine the exert angle might be an added way of doing a perfect installation, you will then take the second radio to the second location mount it, connect to it, and scan for wireless access points and you should at this point see the one you installed at the first location and then connect to it, that all on how to set up a point to point link on mikrotik radios.

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