Posts Tagged “Linksys”

A company I work for has a VPN connection at the office and from time to time I need to pull firmware, software, or various documents from them. Other times there are a couple Linux servers on the local network that I need to work on so I can either SSH from the outside or create a VPN connection and hit the devices through the local network. The amount of data I am pulling from the local network has become more frequent so I needed to find a way to not have to create a VPN connection from my laptop so often and was thinking that it would probably just be easier to connect my Linksys WRT600N router running dd-wrt firmware to the office VPN server. This way I would always have a connection to the office without having to interrupt work and create a PPTP VPN connection.

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Recently I was doing some work in a hospital and my cell phone would not quit rebooting. The phone is a BlackBerry 8320 Curve provided by T-Mobile. At first I could not figure it out but I figured it must be something with the environment. Finally I noticed from my laptop that there was a linksys SSID being broadcast and previously my phone had connected to a linksys SSID at a clients office. The difference here was the fact that the linksys SSID being broadcast belonged to a wireless N router instead of the previous one that was only a G router.

To resolve the issue I turned wireless off on the Blackberry by visiting the home screen, clicking on the Manage Connections icon, and removing the check by Wi-Fi. My phone did not reboot again once wireless was turned off. Just remember once you leave the location that is causing you the problem to turn wireless (Wi-Fi) back on.

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If you are having trouble communicating between the wired and wireless networks after installing or upgrading your Linksys WRT600N wireless router with dd-wrt firmware then the issue is likely related to the VLAN configuration. After you flash the firmware on a Linksys WRT600N you will have the default dd-wrt settings. One of these settings includes separating the wired and wireless traffic because this is the correct way to secure things because the wireless network is much more likely to be breached than the wired network. Switching this setting to allow communication between wired and wireless devices is easy by following the directions below.

  1. Login To WRT600N: Visit the web administration GUI at your routers internal IP address using the HTTPS protocol. If HTTPS is not set up then you should first configure that before you proceed.
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I have been running dd-wrt firmware on my Linksys wrt600n for awhile now however I have always had some issues. I had finally had the configuration to where the issues were minimal however it has never been perfect. I decided since it had been a couple months it was time to try a newer build from the site. I upgraded and things got a lot worse in terms of wireless on the 2.4 GHz channel so I did a ton of troubleshooting and read a lot of posts semi related to my problems with the 600N on the dd-wrt forum. During the reading I learned a lot about the proper way to flash the firmware and I wanted to share my findings here.

First off when you upgrade the firmware you are supposed to do a hard reset before the firmware upgrade and after the firmware upgrade. A hard reset should be done following the below directions.

**NOTE** Hold the reset button in during this entire process

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Its easy to connect to a Linksys router using the Linux CLI command lynx. Make sure you know if HTTP, HTTPS, or both are allowed for management of the router. Also you will need to know if the router as internal, external, or access from both interfaces. You must also know the username and password and then issue the command listed below.

lynx -auth=username:password URL

The above with using username admin and password 1234 connecting to a Linksys router with an IP address of 192.168.1.1 would look like the below.

lynx -auth=admin:1234 192.168.1.1
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