PPP Server on Windows

Question

We have a solution where some hardware connects to a COM port on a Win 7 machine, and interacts with our Java app. The hardware wants to use a PPP Server to transparently connect to an other server over TCP/IP.

Does anyone have a suggestion on how to do this? Start an OS native PPP Server from the Java app, with a connection to the COM port? How is this done?

Answer 1

This is a workaround using VirtualBox. I can't figure out how to run PPP server natively on Win7.

pppd - Ubuntu ttyS0 - VirtualBox Port 1 - Win7 COM1 -- RS232 -- target's ppp client

1. Prepare VirtualBox 5 and Ubuntu 16 as a guest OS on Win7
2. Go to the VirtualBox Settings -> Serial Ports -> Port 1
   • Check : Enable Serial Port
   • Port Number : COM1 IRQ : 4 I/O Port : 0x3F8
   • Port Mode : Host Device
   • Check : Connect to existing pipe/socket
   • Path/Address : COM1

3. Open a Ubuntu terminal

   • sudo apt-config install ppp
   • sudo apt-get install ppp
   • sudo stty -F /dev/ttyS0 raw
   • sudo stty -F /dev/ttyS0 -a
   • sudo pppd /dev/ttyS0 115200 192.168.17.1:192.168.17.2 proxyarp local noauth nodetach dump nocrtscts passive persist maxfail 0 holdoff 1

   pppd options in effect:
   nodetach # (from command line)
   holdoff 1 # (from command line)
   persist # (from command line)
   maxfail 0 # (from command line)
   dump # (from command line)
   noauth # (from command line)
   /dev/ttyS0 # (from command line)
   115200 # (from command line)
   lock # (from /etc/ppp/options)
   nocrtscts # (from command line)
   local # (from command line)
   asyncmap 0 # (from /etc/ppp/options)
   passive # (from command line)
   lcp-echo-failure 4 # (from /etc/ppp/options)
   lcp-echo-interval 30 # (from /etc/ppp/options)
   hide-password # (from /etc/ppp/options)
   proxyarp # (from command line)
   192.168.17.1:192.168.17.2 # (from command line)
   noipx # (from /etc/ppp/options)
   Using interface ppp0
   Connect: ppp0 <--> /dev/ttyS0
   Cannot determine ethernet address for proxy ARP
   local IP address 192.168.17.1
   remote IP address 192.168.17.2