ASUS AX86u CFG decrypter

[sandiegoboy]

Hi, I have the router AX86u with stock firmware. The backup CFG are encrypted. I have a fair bit of DHCP manual assignments I would like to be able to see. Does anybody have a recommendation of a tool to unencrypt (possible edit and re-encrypt) the CFG file
I found a couple of toos via google. One posted in github was giving an error (Also reported on github but dev decline to keep working on this). The other one kind of got some information but I couldnt see the DHCP data.
I wish there would be a way to transform into CSV or xml

 

[ColinTaylor]

It's better to export and import the specific nvram variables rather than messing with the cfg file.

Can I save config on RT-AC86U and load on RT-AX86U_PRO?

Background: I have a network consisting of two locations with different subnets each served by an ASUS RT-AC86U router. The two LAN sections are connected together using an OpenVPN server running on the main LAN to which the secondary LAN router connects via the Internet. Both routers are...

www.snbforums.com

 

[PunchCardBoss]

Does anybody have a recommendation of a tool to unencrypt (possible edit and re-encrypt) the CFG file

GitHub - medo64/WrtSettings: Allows you to view (and edit) NVRAM configuration files for AsusWRT (including Merlin’s variant), Tomato and DD-WRT.

Allows you to view (and edit) NVRAM configuration files for AsusWRT (including Merlin’s variant), Tomato and DD-WRT. - medo64/WrtSettings

github.com

Just now confirmed it opens AsusWrt v388. It is an old script but it works with a PC on windows 11. I can see all the settings in readable text. And I have used it in the past to copy and paste while provisioning a new router. However, I would not recommend editing/saving and then uploading to your router. Just use it as a Read Only tool.

 

[sandiegoboy]

Thanks, that works @PunchCardBoss

 

[drabisan]

ssh to the route and do a nvram show.
You can cherypick what information worth preserving - like port forwarding and DHCP reservation.
Ideally add one port forwarding and a DHCP reservation from GUI before copy/pasting the the rest of such config.
That to a nvram commit and nvram show. And that's all.

 

[sandiegoboy]

@drabisan Thanks was able to do that and copy the two sections (DHCP and port fw). Format is pretty wonky with lots of >>>
This is good for reference but certainly wouldnt try an edit here

 

[drabisan]

>>> are a pita!
But they worked for a number of years and likely that option is here to stay.

Ultimately it's easy to read

 

[Duhme]

GitHub - medo64/WrtSettings: Allows you to view (and edit) NVRAM configuration files for AsusWRT (including Merlin’s variant), Tomato and DD-WRT.

Allows you to view (and edit) NVRAM configuration files for AsusWRT (including Merlin’s variant), Tomato and DD-WRT. - medo64/WrtSettings

github.com

Just now confirmed it opens AsusWrt v388. It is an old script but it works with a PC on windows 11. I can see all the settings in readable text. And I have used it in the past to copy and paste while provisioning a new router. However, I would not recommend editing/saving and then uploading to your router. Just use it as a Read Only tool.

I know this thread is old, but it saved my pututi though. Works on stock (with latest updates 10-2024) firmware for RT-AX86U Pro. Mine got borked (user error) and when I restored a BU config file (just made, BTW) I could no longer login. I had to do a hard reset. I have to use mac filters and I had added several that I hadn't saved anywhere since they were added...grand kids always getting new toys. I was able to get the whole list from the config file I made before I started experimenting thanks to this program. I still can't understand why the BU file didn't restore properly-it hasn't been a problem before. A note that may be useful if anyone else inexperienced has this problem. - I still couldn't get a setup page to load after the hard reset. I had to plug my PC into the 2.5G port for WAN internet connection, it wouldn't load the start page from any other port; I don't use the app so I can't speak to that.