# RS232 to UDP Message **URL:** \ **Category:** Help\ **Tags:** edge\ **Created:** [November 11, 2020, 8:46pm UTC](https://forums.losant.com/t/rs232-to-udp-message/3394 "2020-11-11T20:46:00Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Chris\_GM](https://avatars.discourse-cdn.com/v4/letter/c/ac91a4/32.png) [@Chris\_GM](https://forums.losant.com/u/Chris_GM)\ **Post date:** [November 11, 2020, 8:46pm UTC](https://forums.losant.com/t/rs232-to-udp-message/3394/1 "2020-11-11T20:46:00Z")
My application is capturing outbound RS232 messages from an industrial machine, and sending through to a Losant workflow for processing. I am struggling to send data to an edge device using UDP. I have an industrial LTE router, which has an RS232 to UDP feature. I have set a Pi3B+ running the edge agent, and I believe I’ve opened up the UDP port following various forum posts and docker documentation. I have proven my USB-Serial adapter works with the router, so the only variables left are: 1. Router Configuration 2. Docker Settings 3. Workflow Settings 1 - ![image](https://us1.discourse-cdn.com/flex015/uploads/getstructure/original/2X/1/11d3b090fc33b36ae3f957d6fb4db34736e46b35.png) 2 - ![image](https://us1.discourse-cdn.com/flex015/uploads/getstructure/original/2X/c/c694e800d6b8b0ccf0d10adf092e1cd9f7986efe.png) 3 - ![image](https://us1.discourse-cdn.com/flex015/uploads/getstructure/original/2X/f/fd072ccd5d7caf2c67068a076e6008937a79bd40.png) I have tried connecting to 0.0.0.0 instead of 192.168.1.8 (Pi Address), however this also doesn’t work. Do you have any ideas of what I might be able to try next? Thanks in advance! ---
**Author:** ![Heath](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.losant.com/heath/32/3036_2.png) [@Heath](https://forums.losant.com/u/Heath)\ **Post date:** [November 11, 2020, 9:46pm UTC](https://forums.losant.com/t/rs232-to-udp-message/3394/3 "2020-11-11T21:46:27Z")
Hey @Chris_GM, Welcome to the Losant Forums. We’re very excited you’re here! Would you be able to share with me the contents of the `toml` file you’re using for your Edge Agent configuration? I just want to confirm that you have enabled the UDP Server on the Edge. You can read more about it in [our Supported Edge Protocols Documentation](https://docs.losant.com/edge-compute/supported-edge-protocols/#udp). Could you share, also, the command you are using the spin up the docker container with the Edge Agent in it? Thank you so much, Heath ---
**Author:** ![Chris\_GM](https://avatars.discourse-cdn.com/v4/letter/c/ac91a4/32.png) [@Chris\_GM](https://forums.losant.com/u/Chris_GM)\ **Post date:** [November 12, 2020, 8:08am UTC](https://forums.losant.com/t/rs232-to-udp-message/3394/5 "2020-11-12T08:08:33Z")
Hi @Heath, thanks for your quick reply. Based on the fact that I’m not using any specific toml file, I think you’re on to something! I did try using a toml command from the documentation, but I now see this wouldn’t work without creating the file with vim. Here is my run command currently: sudo docker run -d --restart always --name docs-agent --publish 8080:8080/udp -e ‘DEVICE\_ID=XXX’ -e ‘ACCESS\_KEY=XXX’ -e ‘ACCESS\_SECRET=XXX’ -v /var/lib/losant-edge-agent/data:/data losant/edge-agent ---
**Author:** ![Chris\_GM](https://avatars.discourse-cdn.com/v4/letter/c/ac91a4/32.png) [@Chris\_GM](https://forums.losant.com/u/Chris_GM)\ **Post date:** [November 14, 2020, 2:06pm UTC](https://forums.losant.com/t/rs232-to-udp-message/3394/8 "2020-11-14T14:06:05Z")
So I’ve created, and edited the file in vim with: sudo vim /var/lib/losant-edge-agent/config.toml " [udp] " # Address for UDP server - CLI: --udp-address, EnvVar: UDP\_ADDRESS " address = ‘192.168.1.9’ Note ip has now changed. I redeployed ubuntu. I then spin up using: sudo docker run -d --restart always --name docs-agent -e ‘DEVICE\_ID=XXX’ -e ‘ACCESS\_KEY=YYY’ -e ‘ACCESS\_SECRET=ZZZ’ -v /var/lib/losant-edge-agent/data:/data -v /var/lib/losant-edge-agent/config.toml:/etc/losant/losant-edge-agent-config.toml -p 2395:2395/udp losant/edge-agent Note, I have tried a different port in case 8080 was an issue. The device connects OK, however still no UDP messages passed through. I have used this command: echo “This is my data” \> /dev/udp/192.168.1.9/2395 I do get a UDP message into my edge workflow debug log. Suspect my modem is not outputting the UDP message. Or my edge device is not letting it in. I have downloaded wireshark to see if I can debug this, but I’m not that familiar with it. ---
**Author:** ![Heath](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.losant.com/heath/32/3036_2.png) [@Heath](https://forums.losant.com/u/Heath)\ **Post date:** [November 16, 2020, 9:33pm UTC](https://forums.losant.com/t/rs232-to-udp-message/3394/10 "2020-11-16T21:33:17Z")
Hey @Chris_GM, Thanks for all that information, it’s a huge help! I spoke with some of our folks here who are familiar with UDP about what you’re experiencing. Once you have the container running, you can run the command (on your RPi), `nc -u localhost 2395 testing UDP message on 2395` and see if your workflow picks that up as well. You can also run this command from a different unix-based machine on the same network with `nc -u 2395 ...`. This would confirm that the RPi (and the Edge Agent) are receiving UDP messages, and the issue may lie within your Modem or Edge Device. I am going to do some testing with a container on my machine in the meantime. I’ll be sure to update you with anything I find as well. Thank you, Heath