How to make your router work best with Lima

What is a router?

A router is a network device that connects multiple computers to the same network. A home router is usually connected to two networks: the user’s LANs (Local Area Network) and its ISP’s (Internet Service Provider) network.

Which router should I choose?

First, let’s get to the specifics of the router to understand better what we need.

  • The Wifi: The Wi-Fi standard is referred to as 802.11, followed by a, b, g, n or ac designating its version. The versions are all both forward and backward-compatible. The most relevant to get is of course the AC version: it’s now very affordable and the fastest on the market.
  • 2.4GHz, 5GHz band, Single Band or Dual Band? the 2.5GHz band works well if you don’t need the highest possible network speeds and are using the Internet for casual browsing and activities that doesn’t involve a lot of downloads and uploads on your tablet, smartphone or laptop. On the 5 GHz band, those devices will work well for heavier activities that will need higher speeds, and devices such as NAS or LIMA will definitely need this speed to work at their best. A Dual band router will support both 2.5GHz and 5GHz and is important for multiple users to be connected to the Internet at one time. Which is why you should go for a simultaneous dual-band for sure!
  • Upgrade your router as you upgrade your devices! You will have no use of having the latest laptop on the market if your router is old. New standards bring improvements in speed and connectivity. To take advantage of those improvements, both your devices and the router must support those latest standards. If you get a smartphone that support a WIFI AC standard connection, and you have a WIFI N router, your speed will not be better than if you were still browsing on your old WIFI N smartphone.

Which configuration is best for Lima?

First of all, make sure that your computer is connected on the same network together with the Lima.

To make your router work best, Lima spawns direct connections between your devices – which is call peer-to-peer or P2P for short (check out this blogpost for more details). To allow P2P in your configuration, you need to use the automatic port mapping feature of your Internet router (called UPnP/IGD or NAT-PMP), or alternatively open the TCP port 25211 manually (More details here).

For the tech-savvy, as Lima devices communicate with each other in P2P, you should authorize all outgoing traffic from Lima.

  • UPnP IGD

UPnP IGD is a protocol that allows devices in your home network to be visible and reachable from the Internet. This is a standard protocol commonly used by IP telephony, games and file sharing applications. Lima uses this protocol as well. UPnP IGD needs to be enabled on your router to be used. The fact if it is enabled or not by default depends mainly on your Internet provider policy. In most cases, you have the possibility to enable/disable it through the Internet router configuration interface.

  • NAT-PMP

    NAT-PMP is another port-mapping protocol similar to UPnP IGD and more
    popular amongst devices of the Apple(tm) brand. Some routers only
    support one of NAT-PMP and UPnP IGD, some support both. Lima can work
    with either protocol.


  • Opening port 25211

If you do not want to enable automatic port mapping or if your router does not support it, you may manually redirect TCP port 25211 from your Internet router to the Lima. This will allow direct traffic from devices outside your network (otherwise it will go through our relay server, which is slower).

  • Multiple Lima devices

    If you own multiple Lima devices, each Lima will automatically use port mapping to make itself visible to the outside world. If you are manually configuring port redirection, you may use port numbers between 25211 and 25215 to configure multiple devices. For example, redirect port 25211 to your first Lima device and port 25212 to your second one. The Limas will automatically detect the redirected port although it may take a few minutes.

 

How to authorize ports?

  • First, determine the local IP address of the router (typically 192.168.1.1 or 10.0.0.1).
  • Open your router configuration: in the address bar of a browser, type the IP address of your router.
  • A prompt should open asking for your username and password (usually the admin ones) that will bring you to the set up screen!
  • Locate your Lima in your devices : its MAC address should start by “80:0E:24”.
  • Assign it a static IP address
  • Finally, redirect the port as said before.

I get an error when trying to create an account or sign in, what should I do?

If you believe your Internet connection is stable, we suggest that you try to reset your Wi-Fi router to resolve the issue.

If you’re using a Windows device, please turn OFF your antivirus and Windows Firewall. It is possible that you might have to add an exception for the Lima application processes with some antivirus.

Finally, try to go to http://test-connectivity.meetlima.com. If the page loads forever without displaying any content, it means that Lima’s servers cannot be reached from your network, probably because of a firewall or a country restriction.

How to set up with Apple routers (Airport Extreme, Time Capsule)?

During setup, your Lima and your devices must be connected to the same network (via WiFi or Ethernet). If your devices are connected to your primary network and your Lima is connected to another one through your Apple router, it won’t work.

How to manage your settings?

  • Open AirPort Utility – Click Manual Setup
  • Click the Internet icon
  • Click the NAT tab below the icons
  • Insure that there is a check mark next to Enable NAT Port Mapping Protocol
  • Click the Configure Port Mappings button to specify specific ports to use and set them up on the next window that appears.

To see how to configure a static ip with your Airport router, please have a look here.

Does Lima work with a Switch?

A switch is a high-speed device that receives incoming data and redirects it to their destination on a LAN. Lima does work with a switch, as far as the switch links the router to your device.

Note that if the Lima is behind one router which is not the router on which the user’s devices are connected to, it will alter your speed transfer a lot: Lima and the devices won’t be able to connect in P2P, and your data will go through relay which will slow down the traffic rate.

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