Questions tagged [ppp]
112 questions
0 votes
0 answers
85 views
pon will fail in startup but sending AT commands directly with minicom won't
I have a SIM LTE modem that use "pon" to connect. This pon use a chat script that send the AT commands needed to connect. when I try to start the ppp service, the AT commands all fail by ...
- 123
0 votes
1 answer
396 views
Set up SIM7000E via PPP
I am trying to set up SIM7000E via ppp. SIM7000E is connected to a beaglebone black via micro USB cable. Beaglebone uses 5.10.168-ti-r71 kernel (Debian). SIM7000E drivers have been installed ...
- 1
0 votes
1 answer
307 views
How to find the parent network device for a PPPoE device
For a POINTOPOINT PPPoE ppp0 device in Linux, how to get the underlying ethernet device in a reliable way? I've looked in the output of ip -d link and in the /sys/class/net/ppp0 directory, but neither ...
- 6,204
0 votes
1 answer
135 views
Debugging random loss of communication in embedded Linux device using PPP and cellular connection
I am working on setting up an embedded linux device so that it can connect to a backend server via cellular connection. I am using PPP version 2.4.2 and a Sequans cell chip. I have the device working ...
- 1
2 votes
1 answer
865 views
USB LTE modem without MAC address?
I'm connecting a linux machine using a nowadays popular Huawei Brovi E3372-325 LTE USB Stick to the internet. The special requirement is that incoming ssh/ping/NTP/... connections must reach my linux ...
- 23
0 votes
1 answer
79 views
Lost PPP Connection between Debian <-> PDA / HandHeld using SynCE
I am currently able to connect a handheld to the PC running Linux with a very old Ubuntu 14.04, adding repository PPA for SynCE to source list. Now, the goal is to update the operating system, I chose ...
- 71
0 votes
1 answer
358 views
Howto prevent UDEV wrongly enqueues remove event for device ppp?
Connecting a PDA device with Debian Buster using SynCE, USB serial device is recognized and connects with ttyUSB bus, obtains an IP address and disconnects after a few seconds (two, max three). This ...
- 71
0 votes
1 answer
1k views
SonicWall NetExtender not working
I recently moved to another company. I had to format my computer, so I decided to test Debian 11. But now I'm facing some issues with VPN. I can't connect to any site that's only is available under ...
- 101
0 votes
1 answer
459 views
ppp as the primary interface with wifi as the backup
On Ubuntu 21.10, I have a cellular modem connected via USB that I need to be the primary interface on which all network traffic utilizes. However, I also need the wifi interface (in my case, wlo1) to ...
- 101
2 votes
1 answer
4k views
Why MSS clamping in iptables(-nft) seems to take no effect in nftables?
My pppoe client automatically adds an iptables rule iptables -t mangle -o "$PPP_IFACE" --insert FORWARD 1 -p tcp --tcp-flags SYN,RST SYN -m tcpmss --mss 1400:65495 -j TCPMSS --clamp-mss-to-...
- 473
0 votes
2 answers
767 views
Bridge PPPoS with ethernet
I have a PC on a test bench with 2 interfaces, enp2s0 and enp3s0. The IPs are public and obtained with DHCP, based on the interfaces MACs. There is a second computer on my bench, a Raspberry Pi ...
- 133
0 votes
1 answer
4k views
ppp connection terminated: "No network protocols running"
I am new to ppp protocol and its configuration and got a problem that ppp connection terminated, no ppp0 created. This modem(telit lm960a18) works fine with this sim card and APN using network manager ...
- 3
1 vote
2 answers
1k views
My ethernet device lost in debian
Two os installed on my pc,today a strange thing happens:my ethernet device lost in debian! Enter into win10 from grub, i can connect internet with pppoe. Enter into debian10 from grub : ifconfig lo: ...
- 611
0 votes
0 answers
203 views
IPsecVPN + PPP over ssh routing problem
I have two Debian hosts A and B. On A, I start IPsec VPN and my VPN clients can connect to it. In the same time, I start a PPP over ssh between A and B. So on host A, I can see ppp0 as the new Iface ...
2 votes
1 answer
395 views
How can I select the network interface for installing a program in linux?
I need to install remotely Omxplayer on a Raspberry Pi. RPi is connected by a LTE modem through PPP0 interface. My RPI is placed another country and I connect to Raspberry through my VPN using SSH. My ...
