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2
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1answer
594 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 ...
1
vote
1answer
675 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
18 views

XLinux PPP: wvdial exit code 16 no debug details

I'm trying to use a 3G USB modem on a Rapsbian RPi and all goes well, except for some reason the PPP disconnects with exit code 16. I have debug mode enabled, but it doesn't say nothing, except that ...
0
votes
1answer
35 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
490 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
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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
124 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
40 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
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0answers
49 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
218 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
49 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
120 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
993 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
11 views

wvdial /etc/ppp/ ip-up ip-down not called

I try to execute scripts, when I call wvdial umts. A ppp daemon is started and normally an ip-up and ip-down script shall be executed, when they are inside /etc/ppp. This doesn't work. The scripts I ...
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 ...