Don't think it's using ppp. Try converting output to hex to be anle to see the exchange. Also get hold of the protocol manual.
-- Kelsey Hartigan Go SM Prime Holdings, Inc. On Dec 26, 2010, at 1:36 PM, Carlos Yu <[email protected]> wrote: > Been a while since I posted. Merry Christmas! > > I need a bit of help setting up a null modem ppp server on Ubuntu > 10.04. I am trying to connect a credit card terminal (Verifone vx510) > via serial port to my laptop to speed up socket programming. I setup > the Verifone to connect via RS232 and ran picocom to look at what was > being transmitted through the serial port. Below is a screenshot: > > picocom v1.4 > > port is : /dev/ttyUSB0 > flowcontrol : none > baudrate is : 9600 > parity is : none > databits are : 8 > escape is : C-a > noinit is : no > noreset is : no > nolock is : no > send_cmd is : ascii_xfr -s -v -l10 > receive_cmd is : rz -vv > > Terminal ready > ~�}#�!}!}!} }.}%}&} } �V}'}"}(}"5�~~�}#�!}!}"} }.}%}&} } ��}'}"}(}"�} > ~~�}#�!}!}#} }.}%}&} }!}&q}'}"}(}"Gb~~�}#�!}!}$} }.}%}&} > }!}9�}'}"}(}"��~~�}#�!}!}%} }.}%}&} }!-�}'}"}(}"z?~~�}#�!}!}&} }.}%}&} > }!A};}'}"}(}"E�~~�}#�!}!}'} }.}%}&} }!T�}'}"}(}"ә~~�}#�!}!}(} }.}%}&} > }!h7}'}"}(}"q}%~~�}#�!}!})} }.}%}&} }!{�}'}"}(}"?�~~�}#�!}!}*} }.}%}&} > }!}'}"}(}"J}<~~�}#�!}%}*} }*} } } } } } �Q~~�}#�!}%}*} }*} } } } } } > �Q~~�}#�!}%}*} }*} } } } } } �Q~ > Thanks for using picocom > > Looked like the Verifone was transmitting PPP packets so I proceeded to > setup pppd with the following options: > > -detach > local > noauth > nocrtscts > lock > lcp-echo-interval 5 > lcp-echo-failure 3 > /dev/ttyUSB0 > 9600 > > Problem is, the Verifone device is attempting to connect but PPPD is > timing out. Below is the pppd log: > > r...@cjy-linux:/home/cyware# pppd -d /dev/ttyUSB0 > using channel 20 > Using interface ppp0 > Connect: ppp0 <--> /dev/ttyUSB0 > sent [LCP ConfReq id=0x1 <asyncmap 0x0> <auth pap> <magic 0x1aa399e9> > <pcomp> <accomp>] > sent [LCP ConfReq id=0x1 <asyncmap 0x0> <auth pap> <magic 0x1aa399e9> > <pcomp> <accomp>] > sent [LCP ConfReq id=0x1 <asyncmap 0x0> <auth pap> <magic 0x1aa399e9> > <pcomp> <accomp>] > sent [LCP ConfReq id=0x1 <asyncmap 0x0> <auth pap> <magic 0x1aa399e9> > <pcomp> <accomp>] > sent [LCP ConfReq id=0x1 <asyncmap 0x0> <auth pap> <magic 0x1aa399e9> > <pcomp> <accomp>] > sent [LCP ConfReq id=0x1 <asyncmap 0x0> <auth pap> <magic 0x1aa399e9> > <pcomp> <accomp>] > sent [LCP ConfReq id=0x1 <asyncmap 0x0> <auth pap> <magic 0x1aa399e9> > <pcomp> <accomp>] > sent [LCP ConfReq id=0x1 <asyncmap 0x0> <auth pap> <magic 0x1aa399e9> > <pcomp> <accomp>] > sent [LCP ConfReq id=0x1 <asyncmap 0x0> <auth pap> <magic 0x1aa399e9> > <pcomp> <accomp>] > sent [LCP ConfReq id=0x1 <asyncmap 0x0> <auth pap> <magic 0x1aa399e9> > <pcomp> <accomp>] > LCP: timeout sending Config-Requests > Connection terminated. > Modem hangup > > I am able to connect the Verifone using its modem to PLDT prepaid > Internet. Problem is the waiting time after each compile. I am willing > to pay anyone who can come to my office and make it work. Of course > free advice from PLUG members is preferred. Thanks. > > > _________________________________________________ > Philippine Linux Users' Group (PLUG) Mailing List > http://lists.linux.org.ph/mailman/listinfo/plug > Searchable Archives: http://archives.free.net.ph _________________________________________________ Philippine Linux Users' Group (PLUG) Mailing List http://lists.linux.org.ph/mailman/listinfo/plug Searchable Archives: http://archives.free.net.ph

