How can i make the router work on WAN and if it won't switch to 4G

Installing and Using OpenWrt Network and Wireless Configuration
1

Hello,
I want to ask you, how can I make the router work only on WAN and if the network stops, switch to 4G for backup. I want to add that the router is connected via VPN to another router.

I have added the following code in startup

while true; do
    if ! ping -c1 -w5 8.8.8.8 >/dev/null; then
        /sbin/ifup wwan
        sleep 10
    fi
    sleep 5
done
2

use the mwan3 package

1 Like
3

Thanks,
I think I managed to drive it. Thank you very much :slight_smile:

Interface status:
interface wan is online 00h:04m:02s, uptime 00h:15m:07s and tracking is active
interface wanb is online 00h:05m:12s, uptime 00h:10m:44s and tracking is active

Current ipv4 policies:
load_balanced:
wanb (50%)
wan (50%)

4

According to your first post, you want failover between wan and wwan, which means, wan XOR wwan. You have to adjust mwan3 config for this.

5

@vgaetera can netifd alone effect this?

6

Exactly,
I want when there is a WAN, only it works, and when it disappears, it switches to WWAN (WANB)

"You have to adjust mwan3 config for this."
can any direction how exactly to do it?

7

The linked section effectively implements a custom WAN metric with PBR.
netifd by itself can neither perform connectivity check nor automatically change interface status.

8

You can omit the config opts for IPv6, if no IPv6 used.

9

Do you know how I can make it connect to the VPN through wwan?
when I do a test, the router connects via WAN and when i stop it the connection is lost

10

Sorry, I do not understand. In a correct setup, wireguards connection, at least, also fails over.