Herelink Ethernet Camera Routing Isuue. Cannot Ping Camera from Laptop, but can ping from Controller!

HereLink
1

Hi,

I have a Siyi A8 Mini connected to the Ethernet port of my Herelink v1.1.

My previous Herelink’s airunit was destroyed by a Siyi A8, and I learned the hard way that Siyi cameras destroy the Herelink’s Ethernet PHY.

So, as per the SB_7, with my new Herelink and a new Siyi A8, I used 100nF isolation capacitors in series between the Siyi cam and Herelink Ethernet Port wires.

The herelink is powered by a 9V BEC, and the Siyi A8 is powered by a 14V BEC. I hope the isolation capacitors prevent my Herelink’s Ethernet port.

Here is an overview of my system setup:

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On powering up the system, I get the camera stream on my Herelink controller on the Siyi FPV app, and I can also control the camera movements via on-screen finger slides.

I can also get the RTSP video on Herelink’s QGC from address: rtsp://192.168.144.25:8554/main.264

(Although the video on QGC is very very choppy and takes about 2-3 seconds to update a frame, but that’s a topic for another discussion.)

So Ethernet is working fine!

Now I connected my laptop to Herelink’s Hotspot and did some ping experiments. The results are as follows:

> I **can ping 192.168.43.1** (Herelink GU WiFi AP).
> I **can ping 192.168.144.11** (Herelink GU Drone Network Side).
> I **can ping 192.168.144.10** (Herelink AU).
> I **CANNOT PING 192.168.144.25** (Siyi A8 Mini).

I cannot ping the camera from my laptop.

Next, I installed the “Ping Tools” app on my Herelink Controller and tested the pings. To my surprise, I can ping the camera from the Herelink Controller without any issue, but I can’t ping the camera from the laptop connected to Herelink’s Hotspot.

I even tried pinging the camera with adb on the Herelink Controller, and it was working fine.

So, it means that the Herelink Controller can communicate with the Ethernet camera, but it is NOT routing it through the Hotspot.

Here is a summary of my ping experiments:

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Any idea what I could be missing?

@Michael_Oborne @philip @Gary_Mortimer @iampete @Tim_Archer @khancyr

Please help.

Thanks,
Divyanshu

4

Not sure myself about the camera. I do know for a raspberry pi attached to a Ethernet switch with the Herelink I just need to setup some routing rules on it and the ground station. The commands below are what I use and they work for me. Try it and see but not sure if you can set a route like I do on the companion computer the same way on the siyi camera.

  • GCS/Laptop needs a static route to 192.168.144.0/24 via 192.168.43.1
    • To do this, assuming your GCS is a Windows PC, open a command prompt as administrator and run route add 192.168.144.0 mask 255.255.255.0 192.168.43.1
    • To make the route persistent across reboots, run it with the -p flag: route -p add 192.168.144.0 mask 255.255.255.0 192.168.43.1
  • Companion computer needs a static route for 192.168.43.0/24 via 192.168.144.11
    • To do this temporarily, run the command: sudo ip route add 192.168.43.0/24 via 192.168.144.11
5
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Hi @Tim_Archer,

Thank you for your reply.
I tried the following command on my PC, but still not able to ping camera from PC:
route add 192.168.144.0 mask 255.255.255.0 192.168.43.1

Can you please help with this?

Thanks,
Divyanshu

7

Hi @Gary_Mortimer,

Thank you for your response.
I tried the steps shown in the video, but I still cannot ping the camera from PC.

Since I am able to ping the camera from Herelink Controller, I am pretty sure that it is just a small routing issue on the Hotspot and/or PC that I am unable to resolve.

All this Ethernet and routing is new to me, and I’m unable to resolve it on my own.

Can you please take some time and provide me with some detailed steps to resolve this?

Thanks,
Divyanshu

8

I am not part of CubePilot. Please don’t spam ramdom people for your issues. Thanks.

9

Just tagged you because you provided information regarding a very similar issue with Herelink on the Ardupilot discussion blog.

Sorry if you don’t like it.