Tag Archives: WRT

Adjust DD-WRT TX power

I had a DD-WRT router that was dropping a lot of packets. I got a lot of errors and that caused poor playback in Netflix and especially MLB.tv. It wasn’t a bandwidth issue. My wireless network connection was just too noisy. I had to adjust my DD-WRT TX power to fix it.

I probably adjusted it the opposite way you would expect. Continue reading Adjust DD-WRT TX power

Moving SSH off port 22 doesn’t do much for security

A week or two ago, a stranger approached me with some advice about securing routers: move SSH off port 22.

Since arguing with strangers is what the Internet was apparently invented for, I’ll argue against the benefits of moving SSH off port 22.

Continue reading Moving SSH off port 22 doesn’t do much for security

A DD-WRT USB print server

If your router has a USB port and is running DD-WRT, you can turn it into a DD-WRT USB print server. It can still do wireless duty while it allows your computers to print to your wired USB printer over your wired or wireless network. It’s not very intuitive or user friendly, but it works. Here’s how to set it up with Windows 7. Other Windows versions will be about the same.

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Linksys EA6200 DD-WRT installation

I picked up a couple of refurbished Linksys EA6200 routers this past weekend. For whatever reason, DD-WRT isn’t officially supported on them, though it does seem to be a popular DD-WRT router. A lot of people make the upgrade far more difficult than they need to. With some simple hacks, Linksys EA6200 DD-WRT installation is pretty straightforward.

I came up with an 18-step process that I simplified just as much as I could. Unlike some methods I’ve seen, I don’t have you editing any binary files or creating custom startup scripts.

Continue reading Linksys EA6200 DD-WRT installation

Use guest networks to secure IoT “smart” devices

A neighbor asked me about a recommendation Steve Gibson and Leo Laporte made a couple of weeks ago about securing your IoT household “smart” devices, like doorbells, thermostats, televisions, and anything else that wasn’t traditionally computerized, by putting it on a guest network.

The short answer is yes, it’s something you should do. It doesn’t make them perfectly safe, but it’s the best you can do, so you should. But I would do it a bit differently from Gibson–I think the ideal setup has two guest networks.

Continue reading Use guest networks to secure IoT “smart” devices

When DD-WRT doesn’t work with Charter

I set up a DD-WRT router on Charter’s Spectrum broadband, and had a hard time getting it to work. It wouldn’t pull an IP address on the WAN side, or it would pull a 192.168 address rather than a Charter public address.

Here’s what I had to do to fix it.

Continue reading When DD-WRT doesn’t work with Charter

Why MAC address filtering doesn’t help security

The other question that came out of my recommended DD-WRT settings was why not filter MAC addresses. I hate to be flip, but MAC address filtering doesn’t help, so why bother?

The reason is because your MAC addresses are broadcast as part of the network traffic, and it’s unencrypted. So your MAC addresses aren’t any secret at all. So it doesn’t do any good. One could argue it doesn’t do any harm. But it adds an extra step every time you put something on your wireless network. Why go to the inconvenience if you don’t gain anything from it?

Continue reading Why MAC address filtering doesn’t help security

Why hiding your SSID makes your security worse

I got a couple of questions about my recommended DD-WRT settings, but I’m going to start with the question about why not to hide the SSID. It actually turns out that hiding your SSID is bad for you, and makes your security worse. I’ll explain.

Continue reading Why hiding your SSID makes your security worse

TP-Link TL-WR840n vs TL-WR841n

If you need an inexpensive DD-WRT compatible router, TP-Link is probably your best choice. But there are some big differences when you compare the TL-WR840n vs the TL-WR841n.

I’ve been running the TL-WR841n for more than two years, so I’m familiar with it. I’ve considered supplementing it with a secondary router, and the TL-WR840n was one I looked at.

Continue reading TP-Link TL-WR840n vs TL-WR841n

Recommended DD-WRT settings

I’ve been asked a few times now for my recommended DD-WRT settings, or at least my good-enough settings. I think that’s a great idea, so I’ll walk through how I configure a DD-WRT router. Follow these steps and I can almost guarantee you’ll have the most secure network on your block.

For the purposes of this tutorial, I am going to assume you are configuring DD-WRT as your primary router.

Continue reading Recommended DD-WRT settings