Using script to switch from using ethernet to usb port

[zachary]

I wish to use the dual Wan with my 1+1gbps fibre broadband and at the same time have a 4g USB dongle as a failover. As the primary wan will be used for first 1gbps (eth0) and secondary wan used for second 1gbps (eth1) with load balancing enabled, I am not able to setup the 4g USB dongle (usb0) as a failover on the secondary wan. Therefore, I would like to write a script to check when primary and secondary wan are down, I will then assign secondary wan to the 4g USB dongle and restart secondary wan to activate 4g USB dongle. Then when wan 1 is up again, I will assign secondary wan back to the second 1gbps and restart secondary wan. Can I know if it is possible to write a script for it and can anyone point me to any documentation that allows me to do that, especially how I can switch secondary wan from eth1 to usb0?

 

[Tech9]

Before you even start, Dual WAN failover doesn't work reliably in Asuswrt. The code is the same in Asuswrt-Merlin.

 

[zachary]

I will be using load balancing. Not failover.

 

[Tech9]

Try the load balancing first and see how it works for you.

 

[zachary]

Thanks. I am already using load balancing as I have two 1gbps broadband. The issue is that both are from the same isp and maybe down at the same time so I wish to switch to 4g dongle when both 1gbps are down.

 

[Tech9]

What router and what is the idea? Read this thread, search the forum for other similar threads.

 

[Ranger802004]

WANFailover - Dual WAN Failover Script

WAN Failover is designed to replace the factory ASUS WAN Failover functionality, this script will monitor the WAN Interfaces using a Target IP Address and pinging these targets to determine when a failure occurs. When a failure is detected in Failover Mode, the script will switch to the...

www.snbforums.com

 

[MyPal]

Yeah, I'm not a fan of Asus dual WAN implementations either. Maybe it has improved recently. I went with a 2 router network solution instead. It overcome a CG-NAT limitation I had with one service also.