RT-AC86U saving settings issue - Static Route

[OzTrip]

Hi there,

I'm having an issue with my RT-AC86U

The area affected: LAN > Static Route List

Tested on stock: RT-AC86U_3.0.0.4_384_81369-gb361479_cferom_ubi.w
Tested on marlin: RT-AC86U_384.16_0.zip, RT-AC86U_384.15_0.zip
Tested on Chrome, Safari, Edge & iPad

Manual entry, re-flashed, reset multiple times. Everything else works fine...

Replications steps:

1. Insert any static route eg.



2. Click Apply
3. Log In (you can see the changes saved correctly)
4. Reboot
5. Navigate to LAN > Static Route List

Result: All static routes are wiped off.

I tried multiple times, I can save other settings.

Q1. Does anyone have any idea what can be wrong?
Q2. Can I update Static Route via SSH? If so how? Thanks

 

[Martineau]

Hi there,

I'm having an issue with my RT-AC86U

The area affected: LAN > Static Route List

Tested on stock: RT-AC86U_3.0.0.4_384_81369-gb361479_cferom_ubi.w
Tested on marlin: RT-AC86U_384.16_0.zip, RT-AC86U_384.15_0.zip
Tested on Chrome, Safari, Edge & iPad

Manual entry, re-flashed, reset multiple times. Everything else works fine...

Replications steps:

1. Insert any static route eg.



2. Click Apply
3. Log In (you can see the changes saved correctly)
4. Reboot
5. Navigate to LAN > Static Route List

Result: All static routes are wiped off.

I tried multiple times, I can save other settings.

Q1. Does anyone have any idea what can be wrong?
Q2. Can I update Static Route via SSH? If so how? Thanks

Q1. Does anyone have any idea what can be wrong?

A1. Check if NVRAM is full or nearly full. You need to ideally have at least 5-10% free

Q2. Can I update Static Route via SSH? If so how

A2. NVRAM variables need to be modified: (Beware of syntax before executing nvram commit)

nvram show | grep -E "lan_route|^sr_rulelist"

lan_route= 192.168.1.1:255.255.255.0:10.88.8.254:1
sr_rulelist=<192.168.1.1>255.255.255.0>10.88.8.254>>LAN

Modify the NVRAM variables

e.g. 172.168.88.1/24 -> 10.88.8.254 Metric 2 LAN

OLDVAR="$(nvram get lan_route)";nvram set lan_route="$OLDVAR 172.16.88.1:255.255.255.0:10.88.8.254:3"

OLDVAR="OLDVAR="$(nvram get sr_rulelist)";nvram set sr_rulelist=$OLDVAR"<LAN<172.16.88.1>255.255.255.0>10.88.8.254>2>LAN"

changed to

nvram show | grep -E "lan_route|^sr_rulelist"

lan_route= 192.168.1.1:255.255.255.0:10.88.8.254:1 172.16.88.1:255.255.255.0:10.88.8.254:3
sr_rulelist=<192.168.1.1>255.255.255.0>10.88.8.254>>LAN<172.16.88.1>255.255.255.0>10.88.8.254>2>LAN

 

[Hawk]

Hi there,

I'm having an issue with my RT-AC86U

The area affected: LAN > Static Route List

Tested on stock: RT-AC86U_3.0.0.4_384_81369-gb361479_cferom_ubi.w
Tested on marlin: RT-AC86U_384.16_0.zip, RT-AC86U_384.15_0.zip
Tested on Chrome, Safari, Edge & iPad

Manual entry, re-flashed, reset multiple times. Everything else works fine...

Replications steps:

1. Insert any static route eg.



2. Click Apply
3. Log In (you can see the changes saved correctly)
4. Reboot
5. Navigate to LAN > Static Route List

Result: All static routes are wiped off.

I tried multiple times, I can save other settings.

Q1. Does anyone have any idea what can be wrong?
Q2. Can I update Static Route via SSH? If so how? Thanks

Why are you using google dns address and directing to 192.168.2.1, also one ip address is public and one private I wonder if that is creating problem and router simply wipes it out.

 

[OzTrip]

Why are you using google dns address and directing to 192.168.2.1, also one ip address is public and one private I wonder if that is creating problem and router simply wipes it out.

This is a suggested setup from the sites like Getflix to stop third party apps access certain IP.

The full table should look like this:

 

[Hawk]

This is a suggested setup from the sites like Getflix to stop tired party apps access certain IP.

The full table should look like this:

What is your router IP Address?

 

[OzTrip]

A1. Check if NVRAM is full or nearly full. You need to ideally have at least 5-10% free

View attachment 22547


A2. NVRAM variables need to be modified: (Beware of syntax before executing nvram commit)

nvram show | grep -E "lan_route|^sr_rulelist"

lan_route= 192.168.1.1:255.255.255.0:10.88.8.254:1
sr_rulelist=<192.168.1.1>255.255.255.0>10.88.8.254>>LAN

Modify the NVRAM variables

e.g. 172.168.88.1/24 -> 10.88.8.254 Metric 2 LAN

OLDVAR="$(nvram get lan_route)";nvram set lan_route="$OLDVAR 172.16.88.1:255.255.255.0:10.88.8.254:3"

OLDVAR="OLDVAR="$(nvram get sr_rulelist)";nvram set sr_rulelist=$OLDVAR"<LAN<172.16.88.1>255.255.255.0>10.88.8.254>2>LAN"

changed to

nvram show | grep -E "lan_route|^sr_rulelist"

lan_route= 192.168.1.1:255.255.255.0:10.88.8.254:1 172.16.88.1:255.255.255.0:10.88.8.254:3
sr_rulelist=<192.168.1.1>255.255.255.0>10.88.8.254>>LAN<172.16.88.1>255.255.255.0>10.88.8.254>2>LAN

The updated static route via admin without reboot:



and after reboot:



this command does not change anything?

 

[OzTrip]

What is your router IP Address?

This example is for my old router RT-AC68U which is on 192.168.2.1

 

[OzTrip]

Ok so I did a bit more tests via SSH

I've inserted these two routes via the admin and hit Apply, no reboot



then I overwrote this via SSH

nvram set lan_route=8.8.1.1:255.255.255.255:192.168.1.1:3

when I refreshed admin page I saw no change, however via SSH I saw route change:

lan_route=8.8.1.1:255.255.255.255:192.168.1.1:3

then I restarted the router and all my changes gone.




I assume there is some issue with the router memory or something. It is strange it only happens here???

 

[dave14305]

You aren’t showing in the screenshots, but is the Enable static routes option set to Yes?

The fact you show no sr_rulelist nvram var is problematic.

 

[OzTrip]

You aren’t showing in the screenshots, but is the Enable static routes option set to Yes?

The fact you show no sr_rulelist nvram var is problematic.

Yes, static routes is enabled.

 

[Martineau]

this command does not change anything?

Strange - can't see why it wouldn't

I suggest you take a backup either using the router's Firmware TAB GUI or see NVRAM Save/Restore Utility which allows the NVRAM variables to be examined.

Then reset the router and retry the SSH commands to set the NVRAM variables and see if they appear in the GUI etc.

 

[juched]

Ok so I did a bit more tests via SSH

I've inserted these two routes via the admin and hit Apply, no reboot



then I overwrote this via SSH

nvram set lan_route=8.8.1.1:255.255.255.255:192.168.1.1:3

when I refreshed admin page I saw no change, however via SSH I saw route change:

lan_route=8.8.1.1:255.255.255.255:192.168.1.1:3

then I restarted the router and all my changes gone.




I assume there is some issue with the router memory or something. It is strange it only happens here???

Did you do an nvram commit after the nvram set calls? Believe you need to do that to survive a reboot.

 

[OzTrip]

Ok, thanks to everyone for the help. Ather a week of trying to fix this setting I decided to return the router and replace with a new model. No issues since so I assume there was something wrong with the ram.