Announcement

**zwolfpack** · July 22, 2022, 06:15 AM

Check ser2net status via

Code:

ser2net -v

and

Code:

service ser2net status

The command line is shown in the 'service' command output. The configuration file is specified via the '-c' option.
On Debian 11, I believe you'll find that you're running ser2net version 4. With this, the configuration file is changed to 'ser2net.yaml', which has a different format than the old ser2net.conf.

Try setting the config as follows. Indentation is important.

Code:

%YAML 1.1
---

default:
  name: kickolduser
  value: true

default:
  name: speed
  value: 115200n81

connection: &con2001
  accepter: tcp,2001
  timeout: 120
  enable: on
  connector: serialdev,/dev/ttyUSB0

Edit: to fix an issue mentioned in another thread, where ser2net doesn't start properly at reboot, edit file /lib/systemd/system/ser2net.service and add the lines shown below (starting with 'After=').

Code:

[Unit]
Description=Serial port to network proxy
Documentation=man:ser2net(8)
After=network-online.target remote-fs.target
Wants=network-online.target remote-fs.target

[Service]
EnvironmentFile=-/etc/default/ser2net
ExecStart=/usr/sbin/ser2net -n -c $CONFFILE -P /run/ser2net.pid
Type=exec
Restart=on-failure

[Install]
WantedBy=multi-user.target

**johnny_holden** · August 14, 2022, 07:21 AM

zwolfpack I'm struggling. I'm just a simple linux starter. However, I checked the ser2net version, and as you highlighted for ver 4, I edited the ser2net.service with adding 4th line and also the YAML file with your suggested code (with correct double space on indentations) but had raspberrypi ser2net[354]: Invalid port name/number: Invalid data to parameter on line 16 column 0 (last line of Yaml file). I also tried various other formats found HERE with same parameters. Reboot inbetween. But still Invalid error. In HS4, I'm using ethernet connection with IP address (fixed) and correct port as per Yaml. I also had a go with Trueport on a Windows PC to try and connect, but no luck. Rpi to HS4\PC is on same subnet\LAN.
I've confirmed interface using tail -f /var/log/syslog and get usb 1-1.3: cp210x converter now attached to ttyUSB0. So obviously your config was same.
What am I missing?

**zwolfpack** · August 14, 2022, 03:59 PM

I don't know. I just verified the setup on a RPi4. Before I was using a Pi3, but the Pi4 works the same.

Suggest following the steps below and post details of any differences encountered.

System info:

Code:

pi@HS4Pro:~ $ uname -a
Linux HS4Pro 5.15.32-v7l+ #1538 SMP Thu Mar 31 19:39:41 BST 2022 armv7l GNU/Linux

pi@HS4Pro:~ $ more /etc/os-release
PRETTY_NAME="Raspbian GNU/Linux 11 (bullseye)"
NAME="Raspbian GNU/Linux"
VERSION_ID="11"
VERSION="11 (bullseye)"
VERSION_CODENAME=bullseye
ID=raspbian
ID_LIKE=debian
HOME_URL="http://www.raspbian.org/"
SUPPORT_URL="http://www.raspbian.org/RaspbianForums"
BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs"

Steps performed...

1) install ser2net

Code:

sudo apt install -y ser2net

1a) verify ser2net version

Code:

pi@HS4Pro:~ $ ser2net -v
ser2net version 4.3.3

2) replace /etc/ser2net.yaml with

Code:

%YAML 1.1
---

default:
  name: kickolduser
  value: true

default:
  name: speed
  value: 115200n81

connection: &con2001
  accepter: tcp,2001
  timeout: 120
  enable: on
  connector: serialdev,/dev/ttyUSB0

3) Add lines to /lib/systemd/system/ser2net.service

Code:

[Unit]
Description=Serial port to network proxy
Documentation=man:ser2net(8)
After=network-online.target
Wants=network-online.target

[Service]
EnvironmentFile=-/etc/default/ser2net
ExecStart=/usr/sbin/ser2net -n -c $CONFFILE -P /run/ser2net.pid
Type=exec
Restart=on-failure
RestartSec=5

[Install]
WantedBy=multi-user.target

4) reboot

5) verify service running correctly

Code:

pi@HS4Pro:~ $ service ser2net status
● ser2net.service - Serial port to network proxy
Loaded: loaded (/lib/systemd/system/ser2net.service; enabled; vendor prese>
Active: active (running) since Sun 2022-08-14 13:38:52 PDT; 34s ago
Docs: man:ser2net(8)
Main PID: 615 (ser2net)
Tasks: 1 (limit: 4915)
CPU: 21ms
CGroup: /system.slice/ser2net.service
└─615 /usr/sbin/ser2net -n -c /etc/ser2net.yaml -P /run/ser2net.pid

Aug 14 13:38:52 HS4Pro systemd[1]: Starting Serial port to network proxy...
Aug 14 13:38:52 HS4Pro systemd[1]: Started Serial port to network proxy.

6) verify by adding Z-Wave controller to HS4 - see image.

Attached Files

**johnny_holden** · August 17, 2022, 06:52 PM

zwolfpack. I followed every instruction with a different Pi and fresh install but still failed. However, I come across THIS and added in /lib/systemd/system/ser2net.service the following:

After=network-online.target
Wants=network-online.target

from the 4th line and it worked ! Thank you :-)

EDIT: Although it's working fine, for some reason, my log keep registering an error "Zstick7: The serial port (COM2) was not found in the system. Will keep waiting for it..." from when is was directly connected. Any suggestions? Only have one plugin (3.0.10.0) with one interface to ethernet interface.

**Richel** · October 14, 2023, 03:58 PM

After a great deal of trial-and-error and searching the web, I have gotten this to work on an RPi 3. I was getting the error "ser2net invalid port name/number." The solution came from this site: https://github.com/cminyard/ser2net/issues/52.
In the folder /lib/systemd/system, I edited the ser2net.service file by adding "Requires=network.target" under [Unit]; and added [Timer] with the lines "OnBootSec=1m" and "Unit=ser2net.service".

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Stick7 on a RPi with Ser2Net

Stick7 on a RPi with Ser2Net

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