How to configure Cerbo GX as LAN gateway for Siemens LOGO (Starlink WiFi as WAN)

Q&A and troubleshooting
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1

Hi all,

I’m trying to use my Cerbo GX (v3.66, new GUI) as a small LAN gateway for my Siemens LOGO PLC.

  • My Starlink router has no LAN port (only WiFi).

  • The Cerbo is connected as a WiFi client to Starlink (so the Cerbo itself has internet).

  • I would like to use the Cerbo LAN port to create a local subnet (192.168.250.xxx) where my Siemens LOGO and a laptop can get DHCP addresses.

  • I read that in previous Cerbo GX firmware there was a setting Ethernet Function → LAN (hosted), but in the new GUI I can’t find it.

  • In the current menus (GUI v2) I only see “IP config: Automatic / Manual”.

:backhand_index_pointing_right: My goal:
Cerbo stays online via Starlink WiFi (WAN), and at the same time the LOGO PLC gets an IP from the Cerbo on the LAN port, so I can reach it locally.

Has anyone already done this on v3.66?

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Thanks!

2

The Cerbo (intentionally) does not offer any router functions.

Use a tiny router like Gl.int for that

3

A router function or even multiple IP levels do not work with the GX . Maybe the little OctoGX has this Feature … :thinking:
Why do you want or need to access the Siemens LOGO via the Internet?

4

To adjust the programming. But it can be down directly too. So not a real big deal.

5

The Cerbo is a linux computer

The command “route add” is available

1 Like
6

Thanks Fredd, can you give some extra info please.

7

Have ssh access? and have Linux experience (command line)?

Simple example

https://devconnected.com/how-to-add-route-on-linux/

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8

Of cause you can do so. But the functions works not out of the box without any manual modifications.

9

there is a way with tailscale

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