Openwrt installation tutorial

IPFire supports We cover the installation steps in separate article. OpenWRT allows the user to choose many different channels for wireless networks. Most of these channels are a bad choice because they overlap on two or more standard channels.

For 40Mhz width, we have twice as many "good" channels: 36, 44, 52, 60, , , , , , , , Make sure to set the country code to your country. Last but not least you can try the following options to increase the throughtput even more. But be aware that it is possible that some configuration knobs lead to malfunctions, so be carefully. For the 5. Sufficient for me - no further optimization required. As you see in the configuration the configured channel is 4 in 2.

This is the frequency band where the fewest devices operates in my direct neighborhood. A not too underrated topic is the placement of the router. At the end the possibilities are limited, nonetheless some flexibility is usually available and should be used. But how to know what is the superior router position? Measurements must be done. Place your router, take a WiFi device, start iperf and walk around your flat.

If you encounter areas with low coverage try to re-positioning the router. One last words: do the measurements at times where you plan to use the router. Working hours, non-working hours, … Because channels saturation change over the day. Kabel Deutschland a larger ISP in Germany provides Internet connectivity through cable modems on standard cable television infrastructure. Thus a cable modem is provided by the provider. The later is the minimum which is required to fulfills the requirements.

It do no allow me to group the network into routing areas subnetting - which is bad. Kabel Deutschland provides a mode to switch the modem - and the infrastructure behind - into a so called bridge mode. Reading forums I realized quickly that Kabel Deutschland do not provide any IPv6 connectivity if the router is switched in bridge mode. To sum up KDs default modem setup:. This is not ideal because you will do NAT at least two time: in the OpenWrt box and in the cable modem.

The other solution is to use the bridge mode and use the provided public IPv4 address and setup a IPv6 tunnel. The biggest advantage of this solution is probably a working port forwarding without headache and IPv6 addresses and IPv6 subnetting. So the following setup using KD bridge mode. So the reboot is probably what you should do from time to time if you change several files. Just to make sure that a configuration bug is not hidden.

Now check the connection after reconfiguration, ping a IPv6 host:. Sometimes I stumbled over some misbehavior causing that the tunnel come not up properly. Note that radvd is not used since Barrier Breaker, For more IPv6 related configuration you should check the wiki. Maybe it is time to reboot now.

To get a fresh network configuration on your client system you can remove all IP addresses via sudo ip a flush dev DEV.

Now wait until the router rebooted and all IP addresses are assigned. Lets check the IP addresses on the client system:. To make sure every works you can now ping from any computer in the network a IPv6 host somewhere in the world:. One concern about IPv6 tunnel are increased delay and reduced throughput.

The following image illustrates the measured ping RTT from a client in my network to heise. As a requirement for IPSec, VPN or other home network related operations like file hosting at home you need to know the actual IP address of your router. My network addressing for IPv4 is dynamic: my provider will renew the public IPv4 address from time to time, at least if I reboot the router. Thus I can directly communicate via IPv6 with my router if required.

To communicate via IPv6 to any host in my home network I am forced to assigned a static IPv6 address to the host s.

This contradicts efforts to use privacy generated pseudo random IPv6 addresses. The provider then update the corresponding DNS entries. Configure your computer to use static IP address. Do your own research and read all the resources about installing OpenWrt on your router:.

FAQ before installation. Table of Hardware. OpenWrt forum. First login. Do First login and set root password. Backup flash of your router. Make yourself comfortable with the Failsafe mode.

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