Although often being used with consumer class hardware DD-WRT offers enterprise class features that cover most of the requirements of professional users. Combined with professional grade embedded hardware users can build powerful solutions for advanced indoor and outdoor applications.
Also, if you happen to have a hardware switch (10/100 or gigabit either one), you can use this to remedy the VLAN issue. Just plug a hardware switch into one of the g300nh's LAN ports and then simply use the switch to connect wired connections, should keep them within the same VLAN then.
As of Feb 2010, the WZR-HP-G300NH can be flashed with DD-WRT directly from the Buffalo web GUI. See Where do I download firmware? for links. Look for a Buffalo WZR-HP-G300NH folder, and download the firmware file you need (just one file).
The official DD-WRT release cannot be pushed by web upload onto the Japanese WZR-HP-G300NH original Buffalo firmware. Buffalo Japan added a "safeguard" that checks for Japanese firmware and rejects western firmware. For people with a Japanese router, see the following two sites for details.
Newer models of the WZR-HP-G300NH have been released called WZR-HP-G300NH2 and WZR-300HP, these units have different hardware than the v1 of this unit. Both the G300NH2 and 300HP share the same FCC ID # and have an Atheros AR7242@400Mhz with 32MB flash rom and 64MB board ram. The G300NH2 has been supported as of build 17201. The newer 300HP unit has been community build supported as of build 20675. These units also come with buffalo dd-wrt professional firmware pre-flashed, you can flash to the community dd-wrt builds by following the below steps.
8) Log in the dd-wrt webgui @ and once in, immediately go to Administration > Factory Defaults and select to "restore to factory defaults" again wait atleast 3 minutes. This will give it the equivalent of a hard reset to assure flash integrity.
The latest build has already include simple UI to configure Samba
DD-WRT already includes a built-in Samba server. These instructions provide a simple way to setup Samba. They are based on instructions from -sharing-in-dd-wrt.html, but have been modified for users not familiar with Linux. All setup can be done from within the DD-WRT interface without requiring the use of a remote shell.
Because smbpasswd program build-in DD-WRT always treats /etc/samba/smbpasswd as the samba password file, and /etc is a readonly file system, we must temporary bind /tmp/etc to /etc when adding a user. Change # Add user for samba section like below:
If your network has more than one subnet, you might need to setup a Windows Name Server (WINS server), You can make you router become a WINS server even if you don't have a USB HDD or you don't need a sharing setup. Just user script like Anonymous Sharing Setup but change the below setting in the [global] section:
If your network has any device that uses a static IP address, find the WINS section and point to DD-WRT LAN IP address (If you use Windows, choose properties of you adapter, click Advanced, goto WINS tag. If you use Linux, add wins server = xxx.xxx.xxx.xxx in [global] section of samba)
There have been a few guides out that have reports of success when de-bricking the WZR-HP-G300NH. This however, has been explained by Brainslayer in this post, please use it for referencing info you may need to de-brick your unit, should the occasion arise.
This method is if you are using Windows XP OS. I also always use a 10/100 or Gigabit hardware switch in-between the router and the PC, this way - Windows doesn't have to wait for the router switch to initialize, which can make you loose your TFTP timing window.
4) Do not enter the TFTP command, just having it waiting for now, With the router still powered down, Plug in the power for the router and count to 10 seconds or use a stopwatch, then enter the TFTP command that you should have waiting in the command prompt. This is an important timing step for TFTP to work. Alternatively for step 4: Plug in the power and watch the DIAG light turn red. When the red light goes off on the router (after about two seconds) use a stop watch to count to 12, THEN enter the above TFTP command. Video of the bootloader TFTP window here: =8dVkJ1G0KJs
5) You'll know if it transferred by the command prompt telling you so, give it about 5-6 minutes after if transfer was successful, it'll reset/program itself in this time. Once it is complete the Red Diag LED should go off. Issue arp -d 192.168.11.1 in a command line window. Now you can access the newly flashed router at 192.168.11.1.
This unit ships with the Buffalo professional DD-WRT build pre-flashed onto the router. If you would like to use community builds for this unit (non-buffalo branded dd-wrt), then you will need to follow these steps to flash the community dd-wrt build onto the unit. And to note, this method will work for going from buffalo pro dd-wrt or buffalo user friendly firmware to community dd-wrt.
A newer model of the WZR-HP-AG300H has been released called a WZR-600DHP, these units are exactly the same hardware, minus perhaps board id (unconfirmed), other than that - they share the same FCC ID number. This newer unit has been community build supported as of build 20675. To flash this unit with the community build of dd-wrt - from stock or buffalo dd-wrt - you need to download the following file and follow the same instructions as above, with the exception of using the files for the WZR-600DHP.
Also, the same TFTP recovery/reversion method described in this wiki should work on this unit as well, but keep in mind that you must use files intended for this unit, and not for the WZR-HP-AG300H, all the other steps in the guide will stay the same.
To find the latest community DD-WRT builds for this unit you would need to browse the FTP and look for the appropriate build for your unit. Up-to-date firmware files can be found here: Where do I download firmware? (buffalo_wzr-hp-ag300h folder)
4) Do not enter the TFTP command, just having it waiting for now, with the power to the router still off, Plug in the power for the router and count to 10 seconds or use a stopwatch, then enter the TFTP command that you should have waiting in the command prompt. This is an important timing step for TFTP to work
5) You'll know if it transferred by the command prompt telling you so, give it about 5-6 minutes after the transfer, if the flash was successful, it'll reset/program itself in this time. Once it is complete the Red Diag LED should go off and then you can access it at 192.168.11.1
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This might sound amazingly stupid but I have a DD-WRT (micro) router that I placed in my network to act as a switch and as a WAP while relying on my cable modem to be the DHCP server. In my attempts to get the configuration right I put the router into DHCP forwarder which then made everything work correctly. The problem is now I can't seem to connect to the router in any fashion to add mac addresses to the WAP access list.
Aside from that, I would recommend that instead of using it as a dhcp forwarder, you leave it on dhcp server, and disable the dhcp server. Then set the WAN type to Disabled, then check the box to "Assign WAN Port to Switch"
I have my main wifi router in the basement with a couple of servers attached by ethernet cables. Wifi of course works everywhere. I have an office upstairs, and it's not practical to run ethernet down to the basement. I have some machines that I can't add wifi to, so I wire them to a second router (the dd-wrt'd machine in client bridge mode), which is connects to the main router over wifi (on the same SSID, so they're on the same LAN). The client bridge does not give out DHCP; it forwards the requests to the main router.
"We are excited to have the opportunity to work closely with Buffalo, bringing DD-WRT to a professional audience on reliable and powerful hardware platforms. Together we form a powerful partnership with distinct new offerings for resellers and professional-grade customers," said Peter Steinhaeuser, CEO at NewMedia-NET.
"Consumers and business professionals are demanding increased access and control of their wireless network configurations," said Matt Dargis, COO at Buffalo Americas (USA), Inc. "We launched new open source DD-WRT models of the AirStation router to address this rising demand, giving users the ability to unlock advanced capabilities of their wireless routers at a cost effective price. These features, such as PPTP, OpenVPN and VLAN, allow network administrators and programmers to enable advanced features typically unavailable in consumer-grade wireless routers."
DD-WRT is an open source Linux-based firmware for wireless routers and access points. Offered as an alternative to OEM firmware, DD-WRT provides users with advanced features and capabilities, including:
NewMedia-NET develops software for communication solutions. Its open source router software DD-WRT allows the company to form partnerships with leading manufacturers of wireless hardware products. NewMedia-NET also provides customized development and support services to its customers. For more information, please visit www.newmedia-net.de or the DD-WRT project website www.dd-wrt.com.
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