Router

Upgrading OpenWRT to Barrier Breaker 14.07, and getting opkg to work again ...

Now that OpenWRT has released a new stable version: Barrier Breaker 14.07, it was time to upgrade my D-Link DIR-835 router running snapshots to it.

Do do this, I first did the following:

1. Save a list of the packages, using the command:

opkg list-installed

Then using some scripting on the output to ignore the version numbers.

2. Updating the /etc/sysupgrade.conf file to look like this:

/etc/rc.local
/etc/syslog-ng.conf
/etc/crontabs/

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Presentation: OpenWRT, for the KWLUG, August 2014

On August 12th, I did a presentation on OpenWRT for the KW Linux Users Group.

The slides from this presentation are attached below, and the audio for the presentation is available as a podcast.

Hope it is of use for some.

In that presentation I mentioned wrtbwmon, the bandwidth monitoring script for OpenWRT. You can download my modified version from here.

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wrtbwmon: A Bandwidth Monitoring Tool for OpenWRT Routers

Years ago, I wrote about the various tools available for monitoring bandwidth usage for individual devices in a home network.

Now, I have a definitive solution that will help with the questions: wrtbwmon. This is based on several variants that are floating around the internet, each a fork of another.

Here is an excerpt from the README file:

Description
===========

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Logging with Syslog-NG on OpenWRT

Update 2014-10-08: If you upgraded to the stable Barrier Breaker 14.07, and Syslog-NG is not available, or if don't want to use Syslog-NG for any other reason, please check our other article on using the built in logging feature of OpenWRT to write the log to a file.

We wrote earlier on OpenWRT on D-Link DIR-835. Now, we need to expand the functionality a bit more.

On OpenWRT, the default logging mechanism is an in-memory circular buffer. The user interface for it is the logread command. The log buffer default size is 16 kB. There are a couple of directives that can be set in the system configuration for OpenWRT, but because of the limited size of flash and the non-permanence of RAM, you need another solution if you want to store logs for anything longer than a day or two.

Syslog-NG

Syslog-NG is a good system logging program that is available for OpenWRT.

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Quick How To: Installing OpenWRT on the D-Link DIR-835 wireless router

This is a quick how to for installing OpenWRT custom firmware on a D-Link DIR-835 router.

Though these instructions were tested on the DIR-835, they apply to many other router models from Linksys, Netgear, ASUS, and many other brands.

Check if your hardware is supported

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Solution to Magic Jack Plus Error 23

Do you have a Magic Jack Plus?

Do you get a message "Error 23" when you lift the phone hand set, instead of a dial tone?

Read on for a solution ...

This tutorial assumes that you can find your way around your router's configuration menus from a browser. Refer to your router's documentation to find out the specific IP address for your router and where the relevant options are.

Step 1: Find the MAC Address for the Magic Jack Plus

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Monitoring bandwidth usage by individual computers in a home network

Update: I have finally found an adequate solution, which is using wrtbwmon, a bandwidth monitoring tool for OpenWRT routers. You can download it from the previous link.

Original article follows ...

Anyone with more than a couple of computers on a LAN will sooner face the issue of increased bandwidth usage by someone on the LAN. Be this teenagers downloading via torrents, employees watching YouTube and Facebook videos, or other reasons.

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