The little secret of a U disk changing router

Preparation tool: A small u disk, dd-wrt router firmware, for the whole machine to append a net card or a hub is also necessary.

　　About DD-WRT Introduction

Each router device that we normally use has its own operating system OS, which is used to set up and manage all the routing devices. In fact, what we normally call upgrading the router firmware is to upgrade the operating system in the routing device to make the routing device more powerful.

Dd-wrt is a Linux operating system, but essentially a third-party router firmware. Its Routing and network management capabilities are powerful and are widely used in Linksys WRT54G/GS/GL, or other 802.11g wireless routers based on Broadcom reference design. The dd-wrt can be flushed to the supported router devices to make the router more powerful. Similarly, we can let Dd-wrt run independently on a computer, as long as the corresponding hardware to provide the computer to achieve the function of the router!

　　Install DD-WRT x86 Edition

Now, to the U disk "brush" on the road by the firmware dd-wrt. In general, to brush the firmware of course have hardware equipment, here to brush the routing of the firmware, according to the common sense, is to brush the firmware on the router. But here we are directly to the firmware flash to the U disk. Dd-wrt capacity of only about 11MB, the old U disk most have 16MB to 128MB about the space, absolutely enough, here we take in a 64MB USB stick on the brush firmware as an example:

Dd-wrt X86 version of "Dd-wrt-public-vga.image (hard disk/memory card installation image file)" and "Physdiskwrite 0.5.1 (Router img disk tool)" and unzip to the same folder, open the cmd Command Prompt window, Enter the folder where the program resides. Execute the following command: "Physdiskwrite.exe-u dd-wrt_public_vga.image", the program will automatically detect the current system of hard disk and mobile storage devices, and display the serial number of all storage devices and related parameters. Detailed view "Information for ... physicaldrive* "Information, confirm the serial number of the old machine U disk, which" physicaldrive* "is the designated display hard disk and U disk equipment serial number. In general, if there is only one hard drive on the machine, then the U disk serial number is "PhysicalDrive1"; If the new machine has two hard drives, the old machine U disk serial number is "PhysicalDrire2", and so on.

Program prompts "Which disk do you want to write?", that is, the request to enter the target number of U disk, pay attention not to choose the wrong, or U disk in the data will be covered. Input U disk serial number after the return, the screen prompts to confirm whether the correct, whether the true writing, of course, choose Y, a few seconds later, the router firmware is written to the old machine USB disk, and finally prompted the "11534336/11534336 bytes written in total", said write success.

Tip: "physdiskwrite.exe-u dd-wrt_public.vga.image" command "-u" parameters, mainly in the target hard disk or U disk is greater than 800MB use, if the old disk is smaller, less than 800MB, or use CF card and so on, This parameter can be removed.

　　Set up a router

The U disk to the computer, and for two net cards are plugged into the network cable, boot up, with just brush into the dd-wrt of the U disk Boot system. When you start, you can see that the dd-wrt just brushed in takes over the system boot and boots into the Linux system. After the system is booted, DD-WRT will automatically detect the network environment and hard disk devices, and automatically set up the network to start providing routing services.

Open the browser on the computer, enter the router's default IP address "http://192.168.1.1" in the browser's address bar, and enter the username and password after the carriage return. The default user name for the logon router is "root" and the password is "admin". Login after the default interface for the English interface, you can adjust to Chinese, click on the top of the page "Administrator", into the page, the "languageselection" set to "chinesesimplified" can be.

Tips: Here we introduce the direct dd-wrt play to the U disk, in fact, can also be brushed to CF card, Dom and other storage media. In addition, you can directly download the "Dd-wrt X86" CD-ROM image files, directly to burn, eliminating the installation process. CD-ROM image can also be directly produced on the U disk, so you get a "routing" and storage of dual-function USB drive!

Now, to set up the ADSL router to the Internet, the normal network access mode may be ADSL dial-up, fixed IP or dynamic IP, here to ADSL dial-up settings for example, the other can be referenced. Click "Settings/Basic Settings" above the page, select "Ppoe" in "Internet connection type", and enter the ADSL dial-up Internet account and password. In the "Network setup/Router IP" below, set the local DNS domain name resolution server address, save the settings to start providing routing Internet functionality. In the Network Address server settings (DHCP) below, you can enable DHCP functionality.

In addition, there are many ADSL modem also support Web mode management, their IP address factory defaults are often "192.168.1.1", may be due to ADSL modem and Router LP address conflict, resulting in the installation and use of routers. Therefore, we must change the router's LAN IP address, in the network settings/router IP just now, modify the "Local IP address" to another IP address, such as "192.168.1.254". When the setting takes effect, the router's LAN IP address becomes "192.168.1.254", and the router is set up to be accessed via IP connection.

　　Route to the Internet

On other computers, set the gateway as the host router IP address, set up DNS or use DHCP to freely access the Internet. U disk Router is very powerful, can support the 3322com DDNS, support peanut shell DDNS, you can use the QoS, speed limit, limit connection number settings to optimize bandwidth, and support VPN PPTP client and PPTP server settings, can provide VPN access, Can also be configured to easily manage a variety of network applications, such as the total Ban bt, electric donkey, thunder and so on. Did not expect a face to eliminate the old U disk still able to do so many things?

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