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September 6, 2011 11:51 PM

Categories: WNDR3800 Open Platform Router

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Tathagata Das

NETGEAR
Joined: 12/24/2007

I guess some users try OpenWRT on their WNDR3800. I would like to know their feedback regarding that firmware. Accrodingly I will try to modify it and release another version.

Discussion:    Add a Comment | Comments 1-25 of 27 | Latest Comment | 1 2 Next »

September 7, 2011 10:29 AM

Releasing open source SSB drivers and parallel flash support for the WNR3500L would be far more beneficial. This is after all marketed as an "Open Source" router.

The WNDR3800 is identical to the WNDR3700v2 apart from 64 MB of additional RAM. Adding support for it is easy.

September 12, 2011 8:01 AM

So you want OpenWRT solution for WNR3500L or WNR3500Lv2. But did you try OpenWRT on WNDR3800.

September 12, 2011 8:19 AM

Tathagata Das said: So you want OpenWRT solution for WNR3500L or WNR3500Lv2. But did you try OpenWRT on WNDR3800.

I have both a WNR3500L and a WNDR3700v2.

The WNR3500L is marketed as open source, but it is not at all open source. There is no support for it on OpenWrt 'Backfire', as Netgear/Broadcom have not released open source drivers yet. A heavily patched version of OpenWrt 8.09 exists, but this is based on the 2.4 Kernel which is now EOL and not supported anymore.

Drivers need to be released to enable the WNR3500L to be build with the current Backfire release.

On the otherhand, I can download the OpenWrt source and compile an image for the WNDR3700v2 with no patches or hacks. This is because Atheros have good open source driver support. The WNDR3800 is essentially the same hardware as the WNDR3700v2, with the addition of an additional 64 MB of RAM. I expect support to be added to OpenWrt trunk soon.

OpenWrt is the only truely open firmware for routers. DD-WRT and Tomato are not really open source, and contain non-GPL components.

September 12, 2011 8:24 AM

Couple of years ago I tried to modify to SSB layer to support WNR3500L and I was able to boot WNR3500L using trunk version.
Take a look at the link below
https://lists.openwrt.org/pipermail/openwrt-devel/2010-May/007127.html

This may help you.

September 12, 2011 8:34 AM

Thanks, but that patch will never get applied to trunk.

It uses proprietary code, as well as a load of ifdefs.


/*
 * Broadcom SiliconBackplane chipcommon serial flash interface
 *
 * Copyright 2007, Broadcom Corporation
 * All Rights Reserved.
 *
 * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
 * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
 * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
 *
 */

Would Broadcom be willing to release it as GPL?

September 12, 2011 11:50 PM

Yes, there are lot of ifdef and that is why this was not accepted in trunk. I do not know whether Broadcom willing to it as GPL or not but I found this code in WNR3500L's original source code which is open source.

October 10, 2011 3:14 PM

Tathagata,

I have not yet installed Openwrt, by this would be my wish list:
-opkg shipped with the firmware
-pointing to the relevant repository
-dest added in opkg.conf (/mnt or /opt or any dir that can be mount with -o bind)
-inotify enabled in the kernel (to install minidlna on usb)
-ntfs3g, ext4, hfs+, appletalk included or can be loaded from usb kmod package
And foolproof method to revert back to factory firmware + erease config.

Thanks.

October 20, 2011 6:41 AM

I would try to incorporate opkg in my next release.

November 20, 2011 6:37 AM

Hi,

I'm currently using 2 WNDR 3800 with the OpenWRT image from this site. After 2 weeks of testing and usage I have found one issue: I have problems setting up WPS service on the routers.

But in general I'm very happy with the firmware although Luci "hangs" sometimes.

Just to let you know: My main objective is to setup a site to site VPN (IPsec) with these two WNDR machine. Still working on it...

Do you plan it contribute your knowledge to OpenWRT such that the WNDR 3800 is better supported there?

Kind Regards
Markus

November 21, 2011 11:27 PM

I would like to contribute to OpenWRT but am not sure how to do that. Earlier I tried with WNR3500L but that patch was not officially accepted. You can share with me if you know the process.
Also keep us updated about WPS and VPN (IPSec).

December 19, 2011 5:04 AM

Hi all and tathagata.

I have Netgear wnr3500l with DD-WRT v24-sp2. I want to change my firmware mean switch to openwrt. I compiled kamikazie and get .chk file. But what to do next. Means i already crash my one access point. Please guide how to all this thing.

Thanks in advance.

December 19, 2011 10:55 PM

If you don't have access to WebUI to do firmware upgrade, you can upload firmware to your router using serial cable.

The following link will guide you to upload a OpenWRT firmware to your router using serial cable ..
http://www.myopenrouter.com/article/13859/How-To-Debrick-Your-NETGEAR-WNR3500...

December 28, 2011 9:46 AM

It looks like OpenWrt is officially supporting the WNDR3800 now according to their homepage. Would I be able to use the following file to upgrade from the Netgear factory web gui? Has anyone else tried this version yet?

http://downloads.openwrt.org/backfire/10.03.1/ar71xx/openwrt-ar71xx-wndr3800-...

December 28, 2011 6:18 PM

I installed that version and then changed to openwrt-ar71xx-wndr3800-jffs2-sysupgrade.bin to test with. Seems to be working fine but I haven't tested everything yet.

BC Support, Design and Development

December 28, 2011 8:27 PM

I'm kind of a layman when it comes to open source software. What is the difference between using the .bin and the .img version of the firmware?

December 28, 2011 9:07 PM updated: December 28, 2011 9:08 PM

Basically the deal is that you can't update from factory firmware to a BIN file. So they create an IMG file that is essentially a bridge from the stock Netgear firmware to their firmware.
Once you have installed their IMG file you can then update to any compatible BIN file.

Hopefully in the next few days I can put together more detailed info on the upgrade process, the differences in firmwares, etc but I have not had a chance to do so yet.

In the mean time now that you have the IMG file loaded you can now play with any 3800 BIN file you wish.

OpenWRT does work but it is meant or setup for people that are more familiar with Linux and how to add apps/features as needed. Not so much for people that are new to this or faint of heart.

BC Support, Design and Development

December 28, 2011 9:11 PM

Thanks for the info. Since Tomato and DD-WRT on the 3800 are still in their infancy, would you recommend Gargoyle on top of OpenWRT?

January 19, 2012 6:06 AM

Anybody managed to have openwrt running problemfree on the wndr3800 for more than 3 weeks ???

After approx 3 weeks of running openwrt my router starts a reboot-loop, this has happened to me three times over tha past 2 months and ihave been forced to return to stock fw and then reinstall openwrt again. Now im back on the stock fw again :(

January 19, 2012 10:24 PM

I ran it for a week or so without a problem but then I reverted back to the OEM firmware due to other reasons. Its weird that it would take 3 weeks to start doing that.

How long have you been running the stock fw? It would be interesting to see if it does the same after 3 weeks.

BC Support, Design and Development

January 23, 2012 10:43 PM

 swekat said: Anybody managed to have openwrt running problemfree on the wndr3800 for more than 3 weeks ??? After approx 3 weeks of running openwrt my router starts a reboot-loop, this has happened to me three times over tha past 2 months and ihave been forced to return to stock fw and then reinstall openwrt again. Now im back on the stock fw again :(

I am surprised that the board is rebooted after 3 weeks of non-stop running. How do you know that your WNDR3800 rebooted after every 3 weeks ?

February 7, 2012 10:01 AM

My WNR3500L appears to be bricked and if I cannot recover it I am thinking of upgrading to the WNDR3800.

Has the stability problem described here been resolved yet?

Are there other routers (not necessarily Netgear) I should look at?

February 9, 2012 1:47 AM

I did not face any stability issue till now. So you can upgrade. However how did your WNR3500L brick ? Do you have any serial console set up ? Then we can try to debrick that router also.

February 9, 2012 11:42 AM

I did finally sort out the problem with my 3500L.

One oddity is that it has to be in Gateway and not Router mode with the fiber-Internet interface from my ISP. I had forgotten that and chased my tech-tail for many hours ...

The old Linksys filled the gap on and off but is dying so I may watch for a sale on the 3800 and swap-out the 3500L as the backup ... maybe ...

Thanks!

March 10, 2012 6:44 AM updated: March 10, 2012 6:45 AM

Hey Tathagata and all, I new NETGEAR user and want try other firmware different to stock, I test the openWRT (Backfire 10.03.1) in VirtualBox and run like good, many options and features.
I bought the WNDR3800 motivated by the advertisement "Open Platform"
I want know:

1) This Beta is a preview of official openwrt r28597? or this beta is fork and customized firmware for previus version of official r28597?
2) What is difference from the openWRT on this site and official openWRT?
3) Why here only have the openWRT in beta and others firmwars (DDWRT, Tomato) are full release?
4) The openWRT issues list say "LED needs to be supported.", but the last official release of openWRT have config to LEDs.

March 12, 2012 1:03 AM

Ccolina said: Hey Tathagata and all, I new NETGEAR user and want try other firmware different to stock, I test the openWRT (Backfire 10.03.1) in VirtualBox and run like good, many options and features. I bought the WNDR3800 motivated by the advertisement "Open Platform" I want know: 1) This Beta is a preview of official openwrt r28597? or this beta is fork and customized firmware for previus version of official r28597? 2) What is difference from the openWRT on this site and official openWRT? 3) Why here only have the openWRT in beta and others firmwars (DDWRT, Tomato) are full release? 4) The openWRT issues list say "LED needs to be supported.", but the last official release of openWRT have config to LEDs.

Beta release at myopenrouter.com is different from official OpenWRT. When I developed this beta release at that time OpenWRT did not support WNDR3800.

After that OpenWRT did annouce about it support of WNDR3800. So I think now there is no point in maintaining a parallel branch of OpenWRT for WNDR3800 at myopenwrt.com.

That is why you did not find any full release of OpenWRT at this site.

Discussion:    Add a Comment | Back to Top | Comments 1-25 of 27 | Latest Comment | 1 2 Next »

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