Configure Eth1 and Eth2 on IX30 to act like a 2 port switch

Cellular Routers
1

I’m trying to configure Eth1 and Eth2 to act as a simple unmanaged switch like a little 5 port thing you’d buy at Walmart. According to the instructions from the support bot, I disabled Eth1 and Eth2 in Network → Interfaces. I created an interface named LAN_Bridge_Interface as shown (collapsed settings are blank or default)

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I also created a bridge named LAN_Bridge with Eth1 and Eth2 as devices that are bridged. I can only insert one image as a new user so the bridge settings look like this:

LAN_Bridge

-- Auto MAC Assignment : Enabled

-- Devices

-- – Devices 1

-- – – Device: Device: Eth1

-- – Devices 2

-- – – Device: Device: Eth2

-- Enable : Enabled
– Bridge Type : Standard

-- STP : Disabled

The device’s dashboard in DRM shows both ethernet ports connected, and the OIT can see the PLC when they are directly connected to each other or when connected to a simple 5 port switch, so I know their network settings are correct.

Unfortunately, these settings do not work. The OIT will not read data from the PLC when they are connected to the IX30, and if I try to ping the PLC from the linux shell, I get “ping: sendmsg: Operation not permitted”.

I don’t have any custom rules or VLANs or firewall settings. They are all default. The only other settings that differentiate this IX30 from one straight out of the box are the modem and a custom python script that should read from a PLC at 192.168.72.10. The script works on another device that only has a PLC plugged in to Eth2. This IX30 has a PLC plugged in to Eth2 and an OIT plugged in to Eth1. The OIT and my script both need to see the PLC.

2

Good afternoon,

Try this instead:

In Network > Bridges, create a new Bridge (named “LAN_Bridge” for example).

Within that new Bridge, expand Devices, and add both Eth interfaces.

In Network > Interfaces, create a new Interface (named “LAN_Bridge_Interface” for example). It’s Zone should be Internal, and for the Device dropdown, select the Bridge. Fill in IPv4 info as needed for your project. Set the Metric to 5 (to match the way the Eth2 LAN is setup by default, at least). Optionally, enable the DHCP server.

Go to Network > Interfaces > Setup IP and choose the Bridge for the Device dropdown.

Click Apply.

I think that’s all there should be to it. Does this help?

Edit - re-reading what you said, it looks like you might have done this already. One problem I see in your screenshot is that the Zone is Any, change that to Internal and let me know if that helps or not. And you may want to change the IPv4 Metric to 5 (if you want the LAN Bridge to act like the Eth2 LAN interface acts by default, at least).

3

I was able to get this working right at 5 o’clock yesterday. Not only did I have to change the zone to Internal, I also had to disable Eth1 and Eth2 which seems a little counterintuitive.