OpenWrt Forum Archive

Topic: WNDR3700 working and modding default firmware?

The content of this topic has been archived on 28 Feb 2018. There are no obvious gaps in this topic, but there may still be some posts missing at the end.

Hi all,

as i understand right, it should be possible to use the default kamikaze, running on this router and modifying it directly?

I just want to add openVPN and configure the firewall manually in the config file..

Any counter-arguments?

You wont be able to install packets, since the filesystem is read-only.
Dunno about the config files.

Oh, shit, i didn't know..
the config files in this case are also read only.

But it should be possible to read the image out and modify it?
i saw in the other thread, that they found out, how to modify the header and calculate the checksum for custom images..

i don't need implicitly the neewest kamikaze. Just openvpn and access to the firewall.user..

mag81 wrote:

the config files in this case are also read only.

Some configurations have to be writable. Otherwise the device would be completely reset after each restart.

mag81 wrote:

But it should be possible to read the image out and modify it?

Sure. Feel free to do so wink
The 'uImage'-file is the firmware image. You can also download the GPL-source from netgear. But don't expect too much..

Anyway, if you plan on flashing anything, be sure to have a serial cable installed, and try not to kill the bootloader. So you should always be able to reflash.

You can find informations about the cable and other things in the other thread.

Cable already ordered last week ;-)
the uImage is on the router filesystem?
ANyway, my router should arrive tomorrow. I'll play a bit around and then i'll discuss it in the other threads..

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