Questions tagged [ppp]

PPP (Point-to-Point Protocol) is a data transfer protocol. Quite often it is used in relation to the Pi for transferring data to the Pi over a Serial Cable. Use this tag if your question involves PPP such as problems with setting up, transferring files, controlling connections, etc.

PPP (Point-to-Point Protocol) is a data transfer protocol. Quite often it is used in relation to the Pi for transferring data to the Pi over a Serial Cable.

The Point-to-Point Protocol (PPP) provides a standard method for transporting multi-protocol datagrams over point-to-point links. PPP is comprised of three main components:

  1. A method for encapsulating multi-protocol datagrams.

  2. A Link Control Protocol (LCP) for establishing, configuring,
     and testing the data-link connection.

  3. A family of Network Control Protocols (NCPs) for establishing
     and configuring different network-layer protocols.

(Above is taken from http://www.ietf.org/rfc/rfc1661.txt - Read this for the RFC on PPP)

The Point-to-Point Protocol (PPP) originally emerged as an encapsulation protocol for transporting IP traffic over point-to-point links. PPP also established a standard for the assignment and management of IP addresses, asynchronous (start/stop) and bit-oriented synchronous encapsulation, network protocol multiplexing, link configuration, link quality testing, error detection, and option negotiation for such capabilities as network layer address negotiation and data-compression negotiation. PPP supports these functions by providing an extensible Link Control Protocol (LCP) and a family of Network Control Protocols (NCPs) to negotiate optional configuration parameters and facilities. In addition to IP, PPP supports other protocols, including Novell's Internetwork Packet Exchange (IPX) and DECnet.

(Above taken from http://docwiki.cisco.com/wiki/Point-to-Point_Protocol)

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RPI3 USB port current?

I am using a RPI3 and have a GPS USB module and 3g USB dongle connected to the USB ports of the pi. I am using a 5 volts, 2.4 amps power supply. I was wondering if the RPI3 USB ports provide 1.2 Amps by default or only 600mA per port ? Because…
bobdxcool
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How to use internet using PPPD and SIM800 GSM addon?

Trying to use this hat to get internet access on a Pi 2. Followed this tutorial. But, I can't seem to get it to work. What's weird (to me), is if I'm connected to the LAN through ethernet, I get different results. If I'm connected to the LAN and run…
user43704
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Wanted - chat script for Huawei E8372

I've just acquired a "Huawei E8372" USB dongle. I'm trying to connect to Tesltra (Australia). I switched off the wifi function of the dongle. I've managed to get the dongle recognised as /dev/USB1 using usb_modeswitch. I'm using raspbian stretch.…
Robert S
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How to enable on-demand cellular PPP connection as backup to eth0

I have a Raspberry Pi 3 device to which I have added a MultiTech MTQ-LAT3-B02 modem. I am able to successfully use pppd to connect to the cellular network. I then can add a ppp0 route and successfully use the cellular as a backup route to the…
WayneB
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Connected to internet on ppp0 in raspberry pi 3 but commands like ping, curl not working

Using wvdial to connect to the internet. This is my /etc/wvdial.conf [Dialer Defaults] Init1 = ATZ Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 Init3 = AT+CGDCONT=1,"IP","airtelgprs.com" Stupid Mode = 1 Modem Type = Analog Modem Baud = 460800 New PPPD =…
Rahul Parida
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Multiple instances of /usr/sbin/ifplugd and high CPU usage

why do i have multiple instances of /usr/sbin/ifplugd running, is there a problem Also my CPU seem to be running Maxed PPP0 is the 3g card. and currently it is connected 07:56:38 up 7:57, 1 user, load average: 4.03, 4.16, 4.14 here is also a…
Ossama
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How to switch network when the current network slows down or drops out

My Raspberry Pi 3 is connected to Wi-Fi, Ethernet, and ppp0 (configured using UC20 GSM). All three connections work perfectly individually. But when I combine all three networks on the Raspberry Pi 3 it will get the data from Ethernet but when I…
pragnesh
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Problem connection with ppp

i use wvdial for configurate ppp connection via PCIe (LE910C1-EU). This is my configuration: Init1 = ATZ Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 Init3 = AT+CGDCONT=5,"IP","wireless.twilio.com" Stupid Mode = 1 Modem Type = Analog Modem ISDN = 0 New…
apll
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How to use AT over uart and ppp0 over ttyS0 at same time

I have a cellular data card that connects through ttyS0. I can talk to it via Putty using AT commands, or from Python using /dev/ttyS0. When I enable a ppp0 interface over ttyS0 to communicate with a cellular service provider server, I can talk to…
Geezergeek
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PPTP client is broken after update

I am using Raspberry Pi 1 B+. Unfortunately, the new Raspberries that I bought recently (2017) don't boot anymore with my custom-made image. Only my Raspberries 1 B+ from 2014 accept to boot, so I guess something has changed despite being the exact…
pHeoz
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Connect/Disconnect ppp connection from c++

I have a c++ program that runs on the RPi 3 with a GPRS hat (SIM808) with is connected via UART. Currently I establish my connection with sudo pon and disconnect sudo poff . All of this works as expected. Because the SIM808 have…
Jaques
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installing package error "sudo apt-get install ppp"

I'm trying to install the ppp packaged for the raspberry pi so i can connect a 3g dongle to the internet but i get the following error. It seems that some modules install except one. overall the ppp package doesn't install. How can this error be…
Brian Formento
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Raspberry as dialin-server

Want use raspberry in a place where isn't any WiFi, but got GSM coverage. Need connect to the device - e.g. looking for a sort of GSM modem solution what will works as classic old-style modem-based inbound connections, e.g. in my PC i will use GSM…
clt60
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Establish PPP via serial cable

I am trying to enable PPP via USB serial cable from my laptop to my rpi. As per http://elinux.org/RPi_Serial_Connection, I have entered the following on my laptop: sudo pppd noauth proxyarp /dev/tty.usbserial-FTGCC2MV 115200 10.0.0.1:10.0.0.2…
fyquah95
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Problems connecting over PPP with Ubuntu 13.04

I am currently attempting to set up PPP between my Pi and my Ubuntu 13.04 Toshiba Satellite A105 via the Serial Cable, as per this site: http://elinux.org/RPi_Serial_Connection. I successfully (I think) started PPP Daemon on my pi via sudo pppd it…
RPiAwesomeness
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