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2
votes
1answer
514 views

Difficulties to establish a ppp connection to a GSM provider

I want to establish a ppp link to a GSM provider with my cell phone modem. The modem gets recognized and I can send AT commands just fine, but I can not get the connection established. My chat script ...
2
votes
1answer
363 views

Low PPPoE speed in Linux (Ubuntu)

We have 2 PC with Ubuntu 12.04 and connect with 1000M/bit cable. We then start iperf on both PCs and get 900m/bit speed using the iftop tool. However, when we setup PPPoE server on the 1st PC, and ...
1
vote
1answer
617 views

Troubles establishing connection with wvdial

I have a Huawei cell modem EM680 with which I can establish a connection on my Ubuntu 13.10 box just fine. I plug it in and I can establish a connection using the Connections Manager. I have a box ...
0
votes
1answer
33 views

Adding access to PPP

I have a PPP connection over USB (dev ppp0), and an eth0 connection. My Linux box has IP 192.168.1.1, I have a second Windows PC with an IP of 192.168.1.3. The ppp conection is 192.168.1.2 - which is ...
2
votes
0answers
466 views

Error while trying to connect to internet using wvdial

I am getting error while connecting to Internet through Wvdial . This is the output which I am getting : tusharmakkar08@tusharmakkar08-Satellite-C660 ~ $ sudo wvdial --> WvDial: Internet dialer ...
2
votes
0answers
2k views

How to setup PPPoE with OpenWrt

Probably this is a simple question, but I can't find an answer... I have an ADSL router (Dlink DSL-524T) which runs OpenWrt Backfire 10.03.1. It connects to the internet using PPPoA: this is my ...
2
votes
0answers
119 views

Controlling ppp's chat buffering

I looked at the ppp chat source and it uses putchar to write to the device. When PPP is run over a line discipline like n_gsm, which multiplexes a tty via the GSM 07.10 protocol, a lot of extra data ...
1
vote
0answers
26 views

What happens after dialing USB 3G modem

I have a hard time understanding how a 3G USB modem communicates with OS. As far as I understand, pretty much all USB modems work in a similar fashion - they expose USB CDC device and to connect, ...
1
vote
0answers
33 views

Establish IPSEC Tunnel between two Ubuntu 12.04 PCs over LAN

I have two ubuntu 12.04 32 Bit PCs between which I want IPSec Tunnel to be setup. I have setup ipsec in both systems and ipsec verify runs fine on both. Since I have no prior experience of openswan, I ...
1
vote
0answers
201 views

How to setup ssh over USB on an embedded linux device?

I have an embedded linux device with an ARM processor. I am connecting to it over a USB port using minicom. What should I do to "ssh" into the device through the USB connection? I want to setup ...
1
vote
0answers
43 views

wlan connection stops working when ppp 3g connection is running

I have ZTE MF669 modem and RTL8188eu wifi card. My wifi address is fixed (192.168.1.14). Modem gets address from 10.0.0.0/8 subnet. My wlan connection stops working when I connect to 3G network. I ...
1
vote
0answers
112 views

How to find 3G signal strength when connection is already established by pppd?

I want signal strength information when pppd connection is already running. I am running pppd on embedded Linux environment and 3g modem manufactured Cinterion. I knew commands from which i am able ...
1
vote
0answers
966 views

How to setup PPTP on OpenWRT?

I'm trying to configure OpenWrt so clients can connect using PPTP. When I try to connect with networkmanager from a Fedora 14 box that's connected through Wifi, I get "failed to connect". opkg ...
0
votes
0answers
24 views

Deny a machine from PPP authentication

In my work I have been struggling for a long time trying to simulate the behavior of a PPP server that doesn't respond to "PADI" PPP packets. One way to do that is to shutdown the PPP service, but ...
0
votes
0answers
82 views

PPPD hangs, running over console port

I am trying to run the PPP daemon on the console port of my board which has p2020 processor with Linux kernel 2.6.32. After running ppp interface ppp0 is not coming up and I get an error pppd blocked ...