Multiple WAN interfaces on RUT200

Networking Solutions Question
1

Hi, I’ve configured the WAN interface and the Mobile interface on my RUT200. I have NAT enabled for the LAN so my connected device is issued a 192.168.1.x address.

I have both WAN interfaces enabled (WAN priority 1 and Mobile priority 2) but as yet I have not configured any failover or load balancing rule.

I have setup PortForward rules to route certain incoming ports to my connected device. I have also enabled the firewall rule to allow me to access the RUT Web Interface and SSH interfaces remotely.

I expected in this configuration to be able to access both the router WEB pages and the ports on my connected device via either WAN interface IP address, however I seem to only be able to access whichever one is highest priority.

I cannot access either the router web page or my connected devices pages via the mobile interface while the the WAN interface is enabled. I have to disable the WAN interface and then I seem to be able to access things via mobile.

I have tried swapping the priority round so Mobile is 1 and WAN is second. Again even though both interfaces are Up, connected and enabled - I can only access the router and device via the Mobile interface and not the WAN one.

Is this expected behaviour? My intention is eventually to configure failover with appropriate wget or ping rules but I would have expected without that and with both interfaces enabled to be able to access the RUT via either of them. Looking at the RUT via ssh it shows the below routing entries.

Can you advise if I am doing something wrong here please?

root@RUT241:~# netstat -arn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
0.0.0.0 10.42.xxx.xxx 0.0.0.0 UG 0 0 0 eth0.2
0.0.0.0 0.0.0.0 0.0.0.0 U 0 0 0 qmimux0
10.42.xxx.xxx 0.0.0.0 255.255.255.224 U 0 0 0 eth0.2
10.53.xxx.xxx 0.0.0.0 255.255.255.255 UH 0 0 0 qmimux0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 br-lan

Further testing shows that when both WAN interfaces are enabled, northbound traffic from the router does not reach the destination(s). If I disable one of the wan interfaces (doesnt matter which one) routing outwards from the RUT then starts working.

2

Further update. I have now explicitly configured failover with a wget check. When both interfaces are connected now the WAN has a status of “connected” and the 4G has a status of “Standby”. I can now connect to my device via either WAN. Wget experiments suggests I can also now exit northbound so I think this problem is solved. I’ll continue to test it over the coming days but it seems that unless I explicitly configure the failover in the Multiwan section, behaviour with two active WAN interfaces becomes unpredictable.

3

Hello,

Apologies for the delayed response.

Could you kindly confirm whether your issue has been resolved, or if you still require any further assistance?

Best regards,

4

Hi. No I have resolved this issue thankyou and you can close this ticket. I do have another ticket open that is a perhaps a simpler question however that you could perhaps look at please? It is topic “Open firewall for router webui and ssh and port forward everything else to the lan device”

thanks

5

Good to hear that the issue has been resolved!

Regarding the other ticket, one of our agents will be assigned to it and will look into it as soon as possible.

We appreciate your patience.

Best regards,