WRT1900AC -> WRT3200 restore backup?

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veekay
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PostPosted: Fri Dec 31, 2021 19:47    Post subject: WRT1900AC -> WRT3200 restore backup? Reply with quote
I'm changing my main router and am wondering if it is possible to restore a backup from the 1900 to the 3200 in order to keep all of my settings?

Most things are easy enough to copy over such as my dnsmasq options, but I have over 30 port forwards that I would hate to have to recreate again.

I have seen mention of restoring backups from differing routers causing a bricking issue, but since the hardware is rather similar I didn't know if this would apply.

Once upon a time I came across a way to import/export sections from the nvram, but restoring port forwards never worked correctly for me.

Thanks!
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kernel-panic69
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PostPosted: Fri Dec 31, 2021 20:36    Post subject: Reply with quote
Caveat Emptor, but you should be okay to backup from one to the other; just keep in mind that if things go awry, you should save all your settings pages as .pdf or .mhtml files just in case.

https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324016

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veekay
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PostPosted: Fri Dec 31, 2021 21:03    Post subject: Reply with quote
Thanks for that link - very useful. It will be another week before I make the switch, so maybe in that time I can come across the tutorial for backing up/restoring only the port forwards so I can start fresh.
veekay
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PostPosted: Sat Jan 08, 2022 23:41    Post subject: Reply with quote
Quick update - it doesn't work. Won't even let me restore the file - gives this error right after:

The values you entered are invalid. Please try again.

Granted, I tried this first going from a 1200 - 1900 since there aren't many settings on this one.

No idea why it actually fails or what is invalid.
veekay
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PostPosted: Wed Jan 12, 2022 23:38    Post subject: Reply with quote
Another update - 1900ACSV2 - > 3200ACM also fails with the same message. Seems it isn't possible to restore between these.
kernel-panic69
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PostPosted: Thu Jan 13, 2022 3:41    Post subject: Reply with quote
Marvell devices probably have some specific fingerprint in the nvram backup that prevents it, then.
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veekay
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PostPosted: Thu Jan 13, 2022 4:25    Post subject: Reply with quote
Thought I had found another solution, but it turns out that was for static leases using "nvram get static_leases"

Hoping the same thing can be done with "nvram get forward_spec" and put them into the new router somehow
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