User manual

4 Network Services and Tools Provided by OnRISC

For further information see:

man vsftpd

4.7. RFC2217

Internal serial interfaces of the OnRISC can be made accessible over network via RFC2217 protocol.

ser2net

is a daemon, that provides such functionality. On the client side (PC) you need either

a virtual COM port driver or an application/library communicating RFC2217 directly. For MS

Windows OS you can use the VScom driver of NetCom Mini

The installation requires following components to be installed:

• RFC2217 driver and NetCom UPnP Manager (is bundled with the driver)

• vsupnpd (provided with our system images, enabled by default)

• ser2net (provided with our system images, disabled by default)

ser2net will be conﬁgured via special conﬁguration ﬁle (default /etc/ser2net.conf). This ﬁle

contains following information:

SIGNATURE:sign_vs:VScom NetCom:111S:(C) VS Vision Systems GmbH 2010:1

5000:telnet:0:/dev/ttyS1:115200 sign_vs

5001:telnet:0:/dev/ttyS2:115200 sign_vs

#5002:telnet:0:/dev/ttyS3:115200 sign_vs

#5003:telnet:0:/dev/ttyS4:115200 sign_vs

SIGNATURE is a string that will be sent on RFC2217 driver’s request to identify the device. Don’t

change this setting. After that you’ll ﬁnd the per serial interface conﬁguration strings in following

format:

In the example the /dev/ttyUSB0 device will be used in RFC2217 mode (telnet), listens on TCP

port 5000 and the timeout function is disabled.

vsupnpd daemon parses /etc/ser2net.conf ﬁle and extracts TCP port numbers. This information

will be announced via SSDP broadcasts, so that NetCom UPnP Manager can ﬁnd and install the

serial interfaces. If OnRISC is behind a router and broadcasts are not allowed, you can manually

add the device in the NetCom UPnP Manager. See NetCom Mini Manual for more details.

Please note that ser2net service is disabled by default. You need to activate using sysv-rc-conf

(see Section 3.3).

https://sourceforge.net/projects/ser2net/

http://www.vscom.de/download/multiio/Windows7/driver/NCMini-Install-7z.exe

May 2014 OnRISC User Manual 29