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Questions tagged [ppp]

The Point-to-Point protocol enables packet-based communication over a serial interface.

146 questions
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UDP packets not sending?

I have a simple C program that binds a socket so that it can receive and send UDP packets. It uses recvfrom to receive packets, and shortly after receiving one, it constructs and sends a reply packet, using sendto in the obvious way, sending to the…
Steve Summit
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Can I automatize pppoeconf?

I am a Ubuntu user (10.04 as of now), since I use it, over a year, I have to manually enter the command $ sudo pppoeconf everytime I turn on the computer and want to connect to the internet, the I click enter some times, enter my password of my…
rodrigoalvesvieira
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SMS and GPRS: Multiplexing GSM module on BeagleBone Black using n_gsm

I'm using simcom 800H cellular module with my BeagleBone Black which is very similar to the popular simcom 900. I want to do two main things with the simcom module Use AT commands to configure settings and send and receive messages Use ppp to…
am3
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Raspberry Pi GPRS Connection: Unable to browse after ppp connection is established

I have a persistent problem browsing after connecting my GPRS/GSM Module to Raspberry Pi. I bought the GSM/GPRS Module on amazon at…
code_titan
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Unable to establish ppp connection

I would like to connect an embedded linux board to Internet. On the boar dI have a cinterion 3G modem (PH8). In order to do that, I use pppd with following ph8 peers file : /dev/ttyS2 115200 noauth nodetach lock local debug noipdefault netmask…
lgm42
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adb ppp over usb whitout tethering and rooting

I'm developing a client/server app for my Android phone (server side is Java based), and what I need now is an UDP connection over USB. I tried adb forward, but it give me only TCP protocol with ridiculous latency (6~800ms), so I need UDP. I found…
user1417608
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Raspberry Pi script boot order

There're three forms about running a script on the boot of the Raspberry, that are modifying /etc/rc.local, modifying the cron daemon and making a script that automatically run on boot in /etc/init.d I want to know which of the methods listed about…
Fernando Gallego Fernández
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PPP demand dial with modem bank in linux

I have a linux box with a bank of modems and need to create demand-dial (outbound) PPP connections to a very large set of remote machines. Since I have far more remotes than local modems, I'd like to launch one or more instances of pppd in demand…
Adam Liss
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How to drop output package buffers in linux

I have a linux embedded system running kernel 3.8 (BBB). The network layers are like this: application (uses UDP/IP and ICMP/IP protocol) pppd over a serial tty usbserial an usb hardware which provides a transparent radio transmitter/receiver via…
pzn
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APN authentication detection method

I am working on a project involving GPRS. In particular I use u-blox Lisa-U200 GPRS/GSM chip. Ran into a problem with the PDP contexts when I started testing it out with different carriers. And after spending days on Google I don't seem to find the…
Dimitar K
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Sending AT-Command to a serial port and getting the answer in android

I have 2 Question: I want to send AT-Command to a serial port in android. so I did these steps: rooted my mobile install Terminal Emulator to insert unix command insert: su then: echo -e "AT" > /dev/smd0 cat dev/smd0 or echo -e…
Mohammad Alshaar
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How to preserve debug symbols when generating shared library

Is there a possibility to preserve debug symbols when generating a shared object from an object file? For example, I'm generating my object file with debug symbols using cc using the implicit target and only adding -g to CFLAGS. Then, I generate the…
Alex C
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PPP over half-duplex wireless modem link

I'm currently looking at options for interfacing with an RS-232 modem that only supports half-duplex communication. At first, I thought setting up a PPP connection would be viable, but it sounds like it anticipates a full-duplex connection even with…
steveturner
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When an LTE modem falls back to 3G, does it use PPP to make a new dialup connection?

Configured to auto mode, an LTE modem will fall back to 3G/2G in bad signal conditions. When it falls back (hands over to 2G or 3G), does it need to make a new PPP dialup connection?
user2084032
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Using PPP on an Android tablet

I have been looking for a way to use the point to point protocol in an android application, but I didn't succeed. I firstly checked if the module is supported by my tablet kernel, and so, I executed "pppd" with the right parameters after connecting…
progmaster
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