Port-Forwarding missing data (RT-AC68U-Merlin384.12)

[marius_rg]

Hi guys,

since the recent FWs my port fw list has been empty and no matter what I add, when I go back or refresh the page, the newly added entry is again missing.

If I do from ssh "nvram get vts_rulelist" it doesn't show anything.

Thank you.

 

[ColinTaylor]

Maybe you've run out of free space in NVRAM. Check it on the Tools - System Information page.

 

[marius_rg]

Ohh yes, you got it right.
NVRAM usage 65538 / 65536 bytes

Ho to make some more space here?

 

[ColinTaylor]

How to make some more space here?

A factory default reset followed by manually configuring it.

 

[marius_rg]

Ohh crap, really? Only this is the solution? Awesome!!!

 

[ColinTaylor]

It's the only way to be sure.

 

[RMerlin]

If you ever used OpenVPN in the past, there might be some leftovers key/certs wasting nvram space (as these are now stored in the jffs partition).

Create the following script on your router and run it to remove these from nvram.

#!/bin/sh

echo "Removing unused cert/key from nvram..."

for i in 1 2 3 4 5
do
    nvram unset vpn_crt_client$i\_ca
    nvram unset vpn_crt_client$i\_extra
    nvram unset vpn_crt_client$i\_crt
    nvram unset vpn_crt_client$i\_key
    nvram unset vpn_crt_client$i\_crl
    nvram unset vpn_crt_client$i\_static
done

for i in 1 2
do
    nvram unset vpn_crt_server$i\_ca
    nvram unset vpn_crt_server$i\_dh
    nvram unset vpn_crt_server$i\_ca_key
    nvram unset vpn_crt_server$i\_extra
    nvram unset vpn_crt_server$i\_client_crt
    nvram unset vpn_crt_server$i\_crl
    nvram unset vpn_crt_server$i\_crt
    nvram unset vpn_crt_server$i\_key
    nvram unset vpn_crt_server$i\_static
    nvram unset vpn_crt_server$i\_client_key
done

nvram commit

echo "done."

 

[marius_rg]

Thank you, that cleared a bit the usage

NVRAM usage 54267 / 65536 bytes

 

[RMerlin]

Thank you, that cleared a bit the usage

NVRAM usage 54267 / 65536 bytes

That should be confortable enough for regular usage, as long you don't enter a lot of DHCP static leases with long hostnames.