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Re: COM Port Problem in PPPD
Not quite. I just connected the modem back to itself for some of the --- In "ts7300" <> wrote: > > Hi, > What I got from this you have connected > DTR DCE > 1 CD <-------------------------------> CD > 2 rx<-----------------\ /-------------> RX > 3 TX< ---------------- / \-------------> TX > 4 dtr<--------------- ------------ ----> DTR > 5 gnd ---------------\-/-----------------> GND > 6 dsr --------------- / \ ---------------->DSR > 7 rts <-----------------\ /---------------->RTS > 8 cts <---------------- / \---------------->CTS > 9 ri <--------------------------------------->RI > > Its Means used Cross cable at DCE Device.Correct me if I am wrong. > > --- In p s.com, "odonovan_dan" danodonovan@ wrote: > > > > Just today, I decided to connect my external serial modem to ttyAM1 on > > my TS7260 (which has no control lines, only TX and RX). Up to now, > > I'd been using ttyAM0 (which has nearly all control lines). > > I hit a few problems when I did this. Here's what I learned, because > > it may be helpful in the problems you've been having: > > > > Firstly, I had to assert certain control lines to keep my modem happy. > > Note that this may be just a modem-specific issue. Anyway, I > > basically connected RTS and CTS together, and DTR and DSR, on the > > modem's (DCE) connection. > > > > Next, I had to change the AT init string that I was sending to the > > modem to instruct it to use xon/xoff software flow control. Check > > your modem's manual for the correct init string. Mine was AT&F 2 (US > > Robotics 56k modem). Make sure that all of your chat scripts are > > updated for this. For me, I use one chat script for dial-out > > connections from the TS7260, and then I also need to change mgetty's > > chat script (using the init-chat keyword in mgetty.config) for dial-in > > connections. > > > > For dial-out connections from the TS7260, I needed to use the > > following pppd options: > > local (NOT modem) > > default-asyncmap (NOT 'asyncmap 0' or 'asyncmap'. 'asyncmap a0000' > > also worked though) > > xonxoff > > nocrtsdts (not crtscts, cdtrcts, or anything else like that) > > > > > > For dial-in connections, I also had to recompile mgetty to use > > software flow control instead of hardware flow control (which it uses > > by default). Change policy.h to #define DATA_FLOW as FLOW_SOFT. > > > > Make sure BOTH sides of the ppp link are using an asyncmap which > > escapes control characters, since xon/xoff will introduce control > > characters into the data stream. (use 'default-asyncmap' or 'asyncmap > > a0000' on both sides of the link). > > > > I think that's everything I changed. It certainly wasn't as trivial > > as I thought it would be, but it all works now. > > I hope this helps. > > > > Regards, > > -Dan > > > > > > > > > > --- In "dinesh_lohan" <dinesh_lohan@> wrote: > > > > > > I had tried everything frrom my side added the options > > > xonoff,cdtrcts,nolock but nothing is working.Still strugling. > > > --- In "Eric Robishaw" <eric@> wrote: > > > > > > > > ; Try adding nolock to the options file. > > > > > > > > Eric > > > > > > > > On Mon, Nov 10, 2008 at 11:04 PM, dinesh_lohan <dinesh_lohan@>wrote: > > > > > > > > > Please show me the way how to tackle this problem. > > > > > URGENT. > > > > > > > > > > --- In <ts-7000%40yahoogroups.com>, > "ts7300" > > > > > <ts7300@> wrote: > > > > > > > > > > > > In my case PPP connection is working on Com Port ttyAM0 But > > fails on > > > > > > rest all Com port of the board.What I think some thing I > > missing in > > > > > > options. > > > > > > Below are options file. > > > > > > CONNECT "/usr/sbin/chat -S -s -v -f /etc/chatscrip t /pap2 -T 20" > > > > > > dev/ttyT8S0 > > > > > > 115200 > > > > > > -detach > > > > > > xonxoff > > > > > > mru 552 > > > > > > mtu 552 > > > > > > debug > > > > > > asyncmap > > > > > > persist > > > > > > cdtrcts > > > > > > nomagic > > > > > > passive > > > > > > dump > > > > > > 10.10.20.1:10.10.20.2 > > > > > > > > > > > > Connect SCRIPT: > > > > > > ABORT BUSY > > > > > > ABORT VOICE > > > > > > ABORT "NO CARRIER: > > > > > > ABORT "NO DIAL TONE" > > > > > > ABORT "NO DIALTONE" > > > > > > "" AT > > > &g t ; > > OK ATDT20 > > > > > > "" ATE0 > > > > > > CONNECT "" > > > > > > --- In <ts-7000%40yahoogroups.com>, > "Eric > > > > > Robishaw" <eric@> wrote: > > > > > > > > > > > > > > Below is everything I did to get PPP working on the 7800. > > > > > > > Some specifics will not apply to you, as they are specific to > > > using > > > > > > a GPRS > > > > > > > modem over Tmobile, but you should be able to figure it out. > > > > > > > > > > > > > > NOTE especially the options file and the nolock option. > > > > > > > hope this helps. > > > > > > > > > > > > > > > > > > > > > > > > > > > > Add the following lines to /etc/modules > > > > > > > > > > > > > > ppp_generic > > > > > > > > > > > > > > ppp_async > > > > > > > > > > > > > > pppoe > > > > > > > > > > > > > > pppox > > > > > > > > > > > > > > > > > > > > > > > > > > > > Create file /etc/modutils/ppp: > > > > > > > > > > > > > > Type: > > > > > > > > > > > > > > pico /etc/modutils/ppp > > > > > > > > > > > > > > Paste the following and save: > > > > > > > > > > > > > > alias /dev/ppp ppp_generic > > & gt; > > > > > > > > > > > alias char-major-108 ppp_generic > > > > > > > > > > > > > > alias ttt-ldisc-3 ppp_async > > > > > > > > > > > > > > alias tty-ldisc-14 ppp_synctty > > > > > > > > > > > > > > alias ppp-compress-21 bsd_comp > > > > > > > > > > > > > > alias ppp-compress-24 ppp_deflate > > > > > > > > > > > > > > alias ppp-compress-26 ppp_deflate > > > > > > > > > > > > > > > > > > > > > > > > > > > > Create file: /etc/ppp/peers/tmobile > > > > > > > > > > > > > > nolock > > > > > > > > > > > > > > user E > > > > > > > > > > > > > > password P > > > > > > > > > > > > > > connect '/usr/sbin/chat -v -s -f > > /etc/chatscripts/tmobile-connect' > > > > > > > > > > > > > > disconnect '/usr/sbin/chat -v -s -f > > > > > /etc/chatscripts/tmobile-disconnect' > > > > > > > > > > > > > > > > > > > > > > > > > > > > #the following must appear HERE instead of OPTIONS b/c of > > > priv. status > > > > > > > > > > > > > > noauth > > > > > > > > > > > > > > > > > > > > > > > > > > > > Create file: /etc/chatscripts/tmobile-connect > > > > > > > > > > > > > > TIMEOUT 15 > > > > > > > > > > > > > > ECHO OFF > > > > > > > > > > > > > > ABORT "NO ANSWER" > > > > > > > > > > > > > > ABORT "NO CARRIER" > > > > > > > > > > > > > > ABORT "Connection terminated." > > > > > > > > > > > > > > SAY "Starting GPRS Connection\n\n" > > > > > > > > > > > > > > ABORT "ERROR" > > > > > > > > > > > > > > "" ATZ > > > > > > > > > > > > > > OK ATE0 > > > > > > > > > > > > > > > > > > > > > > > > > > > > #TURN OFF MODEM ECHO OK ATE1 #OK "ATE0V1" #"" 'ATE1' < br>> > > > > > > > > > > > > > OK AT+CPIN? > > > > > > > > > > > > > > READY AT+CGDCONT=1,"IP","m2m.t-mobile.com" > > > > > > > > > > > > > > ECHO ON > > > > > > > > > > > > > > OK AT+CSQ > > > > > > > > > > > > > > SAY "****************** SIGNAL STRENGTH > > > > > *************************:\n" > > > > > > > > > > > > > > ECHO OFF > > > > > > > > > > > > > > OK ATD*99***1# > > > > > > > > > > > > > > CONNECT 'c' > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Create file: /etc/chatscripts/tmobile-disconnect > > > > > > > > > > > > > > "" +++ATH0 > > > > > > > > > > > > > > SAY "GPRS DISCONNECTED" > > > > > > > > > > > > > > > > > > > > > > > > > > > > Create (or modify) file: /etc/ppp/ip-up.local > > > > > > > > > > > > > > (this is executed upon a good ppp connection) > > > > > > > > > > > > > > exec /usr/local/bin/pppconnection > > > > > > > > > > > > > > > > > > > > > > > > > > > > Create file: /etc/ppp/ip-down.local > > > > > > > > > > > > > > exec / u sr/local/bin/pppconnection 1 > > > > > > > > > > > > > > > > > > > > > > > > > > > > Make the above 2 files executible: > > > > > > > > > > > > > > chmod 700 /etc/ppp/ip-up.local > > > > > > > > > > > > > > chmod 700 /etc/ppp/ip-down.local > > > > > > > > > > > > > > > > > > > > > > > > > > > > Copy file /etc/ppp/options to the following: > > > > > > > > > > > > > > cp /etc/ppp/options /etc/ppp/options.bak > > > > > > > > > > > > > > > > > > > > > > > > > > > > Modify file /etc/ppp/options to the following: > > > > > > > > ; > > > > > > debug > > > > > > > > > > > > > > #nodetach stay running > > > > > > > > > > > > > > #updetach #to detach once connected. For debugging > > > > > > purposes > > > > > > > only. > > > > > > > > > > > > > > > > > > > > > > > > > > > > asyncmap 0 > > > > > > > > > > > > > > usepeerdns > > > > > > > > > > > > > > > > > > > > > > > > > > > > #hardware flow control > > > > > > > > > > > > > > #crtscts > > > > > > > > > > > > > > cdtrcts #if no hardware flow control is available & g t; > > > > > > > > > > > > > persist #re-connect upon a failed connect > > > > > > > > > > > > > > > > > > > > > > > > > > > > #nomagic > > > > > > > > > > > > > > > > > > > > > > > > > > > > nopcomp > > > > > > > > > > > > > > nobsdcomp > > > > > > > > > > > > > > nodeflate > > > > > > > > > > > > > > noauth > > > > > > > > > > > > > > > > > > > > > > > > > > > > defaultroute #use this if > > > > > you want > > > > > > > this device to be the main internet connection. < br>> > > > > > > > > > > > > > #You > > > > > > would not > > > > > > > use this if you were for somereason using ppp AND wired > > internet. > > > > > > > > > > > > > > replacedefaultroute #replaces the wired route. > > > > > > > Replaces back when done. > > > > > > > > > > > > > > #add a new default route in which the peer is the gaetway > > > > > > > > > > > > > > > > > > > > > > > > > > > > Set the Serial Port to the desire bit rate (recommended: > 38400): > > > > > > > > > > > > > > setserial /dev/ttts4 baud_base 38400 > > > > > > > > > > > > > > > > & g t; > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > REBOOT the system > > > > > > > > > > > > > > reboot > > > > > > > > > > > > > > > > > > > > > > > > > > > > COMMANDS: > > > > > > > > > > > > > > TO Connect > > > > > > > > > > > > > > pon tmobile ttts4 38400 > > > > > > > > > > > > > > TO Disconnect > > > > > > > > > > > > > > poff tmobile ttts4 > > > > > > > > > > > > > > To connect w/ debugging > > > > > > > & gt; > > > > > > Pon tmobile ttts4 38400 updetach > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Once a good connection is made: > > > > > > > > > > > > > > "Ifconfig ppp0" should return values. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > On Wed, Nov 5, 2008 at 11:16 PM, ts7300 <ts7300@> wrote: > > > > > > > > > > > > > > > First of all Thanx for Reply. > > > > > > > > Below are the ppp options: > > > > > > > > -detach > > > > > > > > xonxoff > > > > > > > > mru 552 > > > > > > > > mtu 552 > > > > > > > > debug > > > > > > > > asyncmap > > > > > > > > persist > > > > > > > > cdtrcts > > > > > > > > nomagic > > > > > > > > passive > > > > > > > > dump > > > > > > > > 10.10.20.1:10.10.20.2 > > > > > > > > > > > > > > > > I have tried with XONXOFF otions in PPP options file but > > > still same > > > > > > > > problem come. > > > > > > > > --- In <ts-7000%40yahoogroups.com> > > > <ts-7000% > > > > > 40yahoogroups.com>, > > > > > > "odonovan_dan" > > &g t ; > > > > > <danodonovan@> wrote: > > > > > > > > > > > > > > > > > > Could it be an issue with flow control settings? > > > > > > > > > ttyAM0 has all of the hardware flow control lines > hooked up, > > > > > whereas > > > > > > > > > ttyAM1 doesn't so I think you would need to be using > either > > > > > software > > > > > > > > > (XON/XOFF) or no flow control with that port (and > > > configure the > > > > > > device > > > > > > > > > on the other end of the connection to use the same). > > > RTS/CTS flow > > > > > > > > > control would only work on ttyAM0 I think. > > > > > > > > > > > > > > > > > > > > > > > > > > > --- In > > > <ts-7000%40yahoogroups.com><ts-7000% > > > > > 40yahoogroups.com>, > > > > > "ts7300" > > > > > > > > <ts7300@> wrote: > > > > > > > > > > > > > > > > > > > > Hi, > > > > > > > > > > I am using TS-7300 Board for PPPD dial up connection and > > > PPPD > > > > > > > > > > connection is sucessful working when I am using ttyAM0 > > port > > > > > > but once I > > > > > > > > > > switched to other com port i.e. ttyAM1,ttyT8S0,ttyT8S1 > > > etc I am > > > > > > > > > > getting Problem in LCP Nego. packets. > > > > > > > > > & gt; ---------------------------------------- > > > > > > > > > > Using Interface ppp0 > > > > > > > > > > Connect :ppp0 <--> /dev/ttyT8S1 > > > > > > > > > > sent [LCP Config id=0X4 <mru 552> <asyncamp 0x0> > <accomp>] > > > > > > > > > > sent [LCP Config id=0X4 <mru 552> <asyncamp 0x0> > <accomp>] > > > > > > > > > > sent [LCP Config id=0X4 <mru 552> <asyncamp 0x0> > <accomp>] > > > > > > > > > > sent [LCP Config id=0X4 <mru 552> <asyncamp 0x0> > <accomp>] > > > > > > > > > > sent [LCP Config id=0X4 <mru 552> <asyncamp 0x0> > <accomp>] > > > > > > > > > > sent [LCP Config id=0X4 <mru 552& g t; <asyncamp 0x0> > <accomp>] > > > > > > > > > > sent [LCP Config id=0X4 <mru 552> <asyncamp 0x0> > <accomp>] > > > > > > > > > > sent [LCP Config id=0X4 <mru 552> <asyncamp 0x0> > <accomp>] > > > > > > > > > > LCP:timeout sending config-requests > > > > > > > > > > connection terminated > > > > > > > > > > > ---------------------------------------------------------- > > > > > > > > > > I am really stuck up at this problem why its not working > > > other > > > > > > than > > > > > > > > > > tyyAM0 ports.Can somebody suggets me something is their > > > any more > > > > > > > > > > setting is require o n com ttyAM1,ttyT8S0 etc. > > > > > > > > > > Please help me out from this. > > > > > > > > > > > > > > > > > > > > Thanx. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > __._,_.___
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