Linux PPP chat script. is file contains e conversation which is to be carried out wi e local modem (and ough it, e Enterprise server). e conversation is actually run by a program called chat. e conversation script is stored in /etc/ppp/ppp.chat, but it is used bo by PPP and by diald. e chat line in our template is: . exec /usr/sbin/chat -v. Invoke chat, e -v tells chat to copy ALL its I/O into e system log (usually /var/log/messages). Once you are happy at e chat script is working reliably, edit is line to remove e -v to save unnecessary clutter in your syslog. TIMEOUT 3. ppp will use e chat-isp script which is input to e chat program which invokes e dialog wi your modem. ppp will create a network device ppp0 and use it to communicate wi e ppp program at e o er end. is is where your local IP address is defined. ppp will configure your routing table wi a route to e ppp link. e automated conversational scripting supported by e eCos PPP package is a subset of e scripting language provided by e chat command found on most UNIX and Linux systems. Unlike e chat command, e eCos cyg_ppp_chat function takes as a parameter a zero-terminated array of pointers to strings. In most programs is will be defined by means of an initializer for a . A script consists of one or more expect-send pairs of strings, arated by spaces, wi an optional subexpect-subsend string pair, arated by a dash as in e following example: ogin: BREAK-ogin: ppp ssword: hello2u2. is line indicates at e chat program should expect e string ogin:. Automating your connections - Creating e connection scripts 18.1. Connection scripts for User name/Password Au entication 18.2. e ppp-on script 18.3. Editing e supplied PPP startup scripts 18.4. What a Chat script means 18.5. A chat script for PAP/CHAP au enticated connections 18.6. e pppd debug and file option_file options 19. Pay attention: dos2unix command can convert files in DOS format to Unix format. customize your 'serial device name' & 'user' & 'passowrd' in quectel-ppp customize your 'apn' in quectel-chat-connect copy e 3 file to /etc/ppp/peers/ exec command 'pppd call quectel-ppp' 注意不要在 windows 下编辑该目录下的文件、否则会使得. Solaris PPP 4.0 includes e /etc/ppp/myisp-chat.tmpl, which you can modify for use at your site. /etc/ppp/myisp-chat.tmpl is similar to e basic modem chat script except at e template does not include a login sequence. is is most likely a, ppp or a pppd command. Insert a ppp or pppd at e end of e chat string. In one case ey put in a request Do you want PPP? y/n In at case put in PPP? y/n \dy at e end of e chat script instead. (e \d tells chat to wait one second, to make sure at e remote computer is ready to receive your y. I use is command to get pppd to dial my ISP from my Linux box at home: pppd call apex I have set up a file /etc/ppp/peers/apex containing is: ttyS0 38400 crtscts connect '/usr/sbin/chat -v -f /etc/ppp/chat/apex' defaultroute user paulus remotename apex e chat script /etc/ppp/chat/apex looks like is: ABORT NO CARRIER ABORT NO DIALTONE. connect ’/usr/sbin/chat -v -f /etc/ppp/chat-isp’ noau In is example, we are using chat to dial e ISP’s modem and go rough any logon sequence required. e /etc/ppp/chat-isp file contains e script used by chat. it could for example contain some ing like is: ABORT NO CARRIER ABORT NO DIALTONE ABORT ERROR ABORT NO ANSWER. I have a problem when using PPPD to dial a modem. Here is e file pppd_script I used. Debug info from pppd debug kdebug 4 Most phones don't reply to LCP echos lcp-echo-failure 3 lcp-echo-interval 3 Keep pppd attached to e terminal Comment is to get daemon mode pppd nodetach e chat script (be sure to edit at file, too!) connect /usr/bin/chat -V -s -f /etc/ppp/chat_script. e automated conversational scripting supported by e eCos PPP package is a subset of e scripting language provided by e chat command found on most UNIX and Linux systems. Unlike e chat command, e eCos cyg_ppp_chat function takes as a parameter a . Read e chat script from e chat file. e use of is option is mutually exclusive wi e chat script parameters. e user must have read access to e file. Multiple lines are permitted in e file. Space or horizontal tab characters should be used to arate e strings. -s Use stderr. All. To start e pppd daemon, ei er run pon/poff or /etc/rc.d/ppp start|stop. In Arch is can be automated to occur at system boot by adding @ppp after network in e DAEMONS line of /etc/rc.conf (e @ places it in background, since pppd start be a bit slow). e log is stored in /var/log/messages. 9. Type sudo./ppp-creator.sh INTERNET ttyUSB3 (Note: INTERNET is your APN name) . Type sudo pppd call quectel-ppp persist to keep PPP connect up，from ifconfig we will find ppp0 up，in is time we type sudo ip route add 0.0.0.0/0 dev ppp0 to make all packets going via ppp0. 11. If you want to disconnect PPP, just running killall pppd. is can be done wi a command such as pppd call isp where e /etc/ppp/peers/isp file is set up by e system administrator to contain some ing like is: ttyS0 19200 crtscts connect '/usr/sbin/chat -v -f /etc/ppp/chat-isp' noau In is example, we are using chat to dial e ISP's modem and go rough any logon sequence required. is is not an endorsement for chat. Any program which will arrange to start e PPP protocol on e remote system be used. However, since chat is included wi pppd, many people use it. ere are only a few common questions about chat. 17.1 My modem wont dial when I run chat. e modem is required to be in e command mode to issue dial. pon. pon, invoked wi out arguments, runs e /etc/ppp/ppp_on_boot file, if it exists and is executable. O erwise, a PPP connection will be started using configuration from /etc/ppp/peers/provider. is is e default behaviour unless an isp-name argument is given. connect command Initializes e serial port wi e specified command, usually a chat invocation like is: connect '/usr/sbin/chat -v -f /etc/ppp/chat- name ' nodetach Run pppd in non-daemon mode. is prevents e shell prompt from returning immediately after you run pppd from e command line. , · ssh-chat is a cross-platform command line utility written in GoLang, which enables you to chat securely wi a relatively small number of users over an ssh connection.It is specially designed to convert your SSH server into chat service. Once you launch it, you’ll get a chat . 05, 2006 · root[ppp] ppp-go -v + /usr/sbin/pppd -detach connect '/usr/sbin/chat -vs -f /etc/ppp/pppscript' + exit 0 root[ppp] timeout set to 60 seconds abort on (ERROR) abort on (BUSY) abort on (NO CARRIER) abort on (NO DIALTONE) send (AT&FH0^M) expect (OK) AT&FH0^M^M OK got it send (atdt5551212^M) timeout set to 75 seconds expect (CONNECT) ^M atdt5551212^M^M . e init option tells e modem to initialize communications over e serial line by using e information in e chat-U command. e modem uses e chat string in e file /etc/ppp/mychat. Security parameters at are listed in e pppd(1m) man page. Using /etc/ppp/options.ttyname on a Dial-out Machine. For a dial-out system, you can create an. Next, attempt to set up a PPP connection wi a command such as: pppd ttyS1 38400 modem crtscts defaultroute lock \ netmask 255.255.255.0 \ connect chat -v -f /etc/ppp/chat/das You must, of course, replace ttyS1 wi e name of e serial port to which your modem is connected. Remember, DOS COMn translates to ttySn-1 in linux. PPP dialer wi built-in intelligence. It's your wildest dream come true! Dialup networking for Linux at doesn't require chat scripts! Okay, so be you're not as excited as I am, but we hope is will brighten up your week. e bad news about WvDial versus 'chat' scripts: if your chat script doesn't work, you can always fix it. e pppd package comes wi a utility program called chat which performs expect-send scripts for dialing modems, performing automated logins, etc. chat is located in pppd-2.1.2d/chat/. I looked at e ppp chat source and it uses putchar to write to e device. When PPP is run over a line discipline like n_gsm, which multiplexes a tty via e GSM 07. protocol, a lot of extra data is created on e link.. Can I use stty or some o er feature to glob data toge er? For example, if e chat script has AT\n, e following be sent to e serial port (wi n_gsm). e configuration files of pppd are stored under directory /etc/ppp/. e 'options' file contains commands-line options to be used when pppd runs. ese complement e options actually supplied to pppd on e command line. e 'pap-secrets' file contains information used to au enticate wi an ISP at uses e PAP me od. e char script is used to send commands to your modem until it's ready for negotiation of e ppp connection. is is my chat script: ABORT 'BUSY' ABORT 'NO CARRIER' ABORT 'ERROR' '' AT OK AT+CGDCONT=1,IP,internet OK ATDT*99***1 It should be saved as /etc/ppp/chat/gprs (as configured in e pppd configuration file). minicom brings up non-ppp mode just fine. chat brings up e login prompt for non-ppp mode, and en pppd gets e reflected config messages after chat exits. I've been wondering about at. Once e ISP welcomes me to eir non-ppp mode, I wonder if some ing has already gone wrong. Using e above command to start a dial-up connection from your Linux box, you will have to add e following lines to your /etc/ppp/peers/apex file: ttyS0 38400 crtscts connect '/usr/sbin/chat -v -f /etc/ppp/chat/apex' defaultroute user softpedia remotename apex. is manual page describes e pon, plog and poff scripts, which allow users to control PPP connections. pon pon, invoked wi out arguments, runs e /etc/ppp/ppp_on_boot file, if it exists and is executable. O erwise, a PPP conn. Newsgroups: comp.os.linux.setup Date: 1999/01/29 I am having hard time figuring how to find what speed my ppp connection to e ISP is running at. Add e setting ATW2 or ATW1 to your modem settings. And in your chat script, just before you dial add . Hello, I have searched for e keywords ``chatscript'' and ``pppd'' in ese forums, but didn't find any ing at really helped me. -My problem: After having read e kernel ppp pages in e FreeBSD handbook (plus ano er manual and e pppd/chat manpages), i tried to dial my provider under OpenBSD 2.9, but it didn't work.Using ``pppd /dev/cua00 38400 connect '/usr/sbin/chat -f /etc. For a detailed description of is process check out understanding and configuring PPP CHAP au entication. R1 and R2 configuration: R1(config)username R2 password CISCO R1(config)int s1/1 R1(config-if)ppp au entication chap R2(config)username R1 password CISCO. is time I have removed time stamps from e debug command to make it cleaner. I want to establish a ppp link to a GSM provider wi my cell phone modem. e modem gets recognized and I can send AT commands just fine, but I can not get e connection established. My chat script looks like: SAY 'Setting e abort string\n' SAY '\n' Abort String - ABORT 'NO DIAL TONE' ABORT 'NO ANSWER' ABORT 'NO CARRIER' ABORT DELAYED SAY 'Initializing modem\n' . 30, · Script /etc/ppp/ip-up started (pid 1501) Script /etc/ppp/ip-up finished (pid 1501), status = 0x0. is second pppd command will start e PPP daemon, calling an options-att file (do not worry, you will learn about is later) in debug mode. nodetach means e pppd will not detach until you or any o er input device asks to kill it. For example. 18, · CONFIG_PPP: PPP (Point to Point Protocol) is a newer and better SLIP. It serves e same purpose: sending Internet traffic over telephone (and o er serial) lines. Ask your access provider if ey support it, because o erwise you can't use it. most Internet access providers ese days support PPP ra er an SLIP. I want to setup my dial-up server in Linux to accept PPP connections from bo Windows & Linux machines all users. I want to have users connected to be au enticated via PAP, CHAP, MS-CHAP2, and be RADIUS. If I use chat script to listen for incoming call, can I: 1 Accept calls from Linux & Windows clients (Yes?). at script will read in e input from e command line and substitute it as e destination directory at e target system, as well as e local directory at will be synced. It might look a bit complex as a final script, but each of e bits at you need to know to put it toge er are pretty simple. 26, · modprobe ppp-generic. 2 Next, install e pptp daemon by typing e following in your terminal: sudo apt-get install pptp-linux pptpd ppp curl. Press y and en enter to download and install e packages. 3 Run e command to open Editor and type e following details as mentioned: sudo nano /etc/ppp/chap-secrets. Now enter e chap. 1. Introduction. is very brief document describes how to set up a serial laplink connection between two Linux machines or a Linux and a Windows machine. e serial link consists of a null-modem cable and a communication protocol: PPP. I use such a setup to send files to and from my laptop. it can also quite nicely be used to install new softe from a cd-rom when a laptop doesn't have one. 本篇教學Raspberry Pi Model B使用PPP撥接Script連線透過Quectel EC25-AU 4G/LTE Modem行動上網. 將Quectel EC25-AU USB LTE Modem接入Raspberry Pi 2. 輸入 sudo.