WAN interface for internet access

Networking Solutions
1

Hi all, I have a question to ask on how to properly setup the WAN interface in my RUTX50.

I currently have 2 SIMs slotted and working correctly, with SIM Switch enabled.
I also have a WAN interface set and failover active from the SIM to the WAN interface:

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My goal is to connect a second router which does not have internet access to the RUTX50.
This connection is happening with a cable from WAN (RUTX50) to LAN (Fritzbox) and the goal is to provide internet access to the Fritzbox through this configuration:

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However, as of now I’m not able to achive this… which I guess it’s because I need to setup dedicated rules in the firewall.

Can someone help me?

Thanks!

2

Hello,

If you want to provide internet to your FritzBox from the RUTX50 using an ethernet cable, you should connect the cable to the LAN port of the RUTX50 and the WAN port of the FritzBox. This is because the router receives internet through its WAN port.

Hope this helps!

Best Regards,

3

Hi Marija, thanks for the reply.
I understand, but what if I have a specific use case for which:

  • I have a client connected in LAN to my RUTX50 that is using the MobA1S1/2 to connect to the internet
  • The Fritzbox, when connecting to the RUTX50, should not be able to see this client nor interact with it in any way (excluding some custom traffic rules defined in the RUTX50)

For doing this, I configured the firewall zone and defined only specific traffic rules (for specific ports) so that when the Fritzbox is connected to the WAN of the RUTX50 it will be able to forward this traffic (based on the defined rules), but it will not be able to ping the client connected in LAN to the RUTX50.

I tested this yesterday and indeed the Fritzbox can’t see the client through the WAN port of the RUTX50, but if the Fritzbox has its own internet connection it can exchange data through the custom defined rules in the firewall.

Would this be a good approach to my use case? Or am I mixing things?

I can also share the configuration file of my RUTX50 if you want to take a closer look at what I’ve done.