PPP (point-to-point protocol) was developed and standardized in order to carry all traffic between two network devices over a single physical connection, direct link between two nodes.
Questions tagged [ppp]
83 questions
13
votes
1 answer
How to interpret the output of ipconfig/all?
I am shaky on network setting up concepts.
When I do ipconfig/all on my machine, I get:
I need to set up a basic home network and want to understand these basic things and what is going on.
I want to understand the output of ipconfig and what…
p2pnode
- 1,357
11
votes
1 answer
Verizon USB551L 4G Stick on Linux
I have been trying to get a Verizon USB551L 4G USB Stick working on Debian Linux. I have been able to get it to connect, but it always disconnects after 10 secs to 2.5 minutes, then it cannot connect again without a power cycle or reconnecting the…
David Young
- 209
6
votes
3 answers
How can I use my cell phone to establish a dial-up networking connection?
I am using Windows 7 and have a BlackBerry with T-Mobile (U.S.). I have paired the phone with my computer over Bluetooth, which automatically creates a serial port for it. I am able to open the port in PuTTY and successfully issue AT commands to the…
G-Wiz
- 671
4
votes
2 answers
Strange default router address for interface 'ppp0'
I'm using a 3G-modem to provide an Internet connection to my Linux box.
So, when I issue the ifconfig command, I see the following:
ppp0: flags=4305 mtu 1500
inet 10.223.229.136 netmask…
maniaque
- 143
4
votes
2 answers
pfSense 2.0 - Can PPP L2TP be used to be an L2TP tunnel?
i noticed in pfSense 2.0 (RC3) that my PPPoE interface is now a PPPoE tunnel assigned to my WAN NIC (Network Interface Card):
where the PPPOE0(xl0) - ianboyd@superuser.com network port is defined on to PPPs tab:
i thought this was interesting, and…
Ian Boyd
- 23,066
4
votes
2 answers
MacBook not connecting anywhere via VPN
I was wondering if someone could help me troubleshoot this issue.
I have a handful of VPNs set up on my MacBook (Snow Leopard) which I know are working, but today when I tried to use them I get the following error in all cases:
could not find the…
Toby
- 729
4
votes
1 answer
PPP - PPTP VPN drops connection with weird debug message
I'm trying to establish a link between a Win2008R2 PPTP Server and a Debian 8 client using PPP.
When connecting to the VPN server, authentication succeeds. After authentication it's negotiating the MPPE settings, but after the first sent ConfReq…
3
votes
2 answers
wvdial, ppp0 and setting default route (automatically)
I am setting up a 3G connection to be monitored by supervisord using wvdial on a headless machine (raspberryPi/raspbian) which I can only access via the 3G connection once it's live.
In short, supervisor keeps wvdial running, with wvdial…
Laurent S
- 336
3
votes
1 answer
Communication between two systems using pppd
I have two Vritual Machines (part of a bridged network) (both Ubuntu 64-bit) running Oracle VM Box.
I can communicate between the two machines using netcat.I have installed ppp daemon on both the machines.The name and the IP address of the machines…
liv2hak
- 596
3
votes
0 answers
IPCP: timeout sending Config-Requests
We have a problem with part of our devices which are using ppp to connect to the internet using 3G modem in US. The issue seems really odd as only few of the devices have this problem but it is a permanent problem on them (connection was never…
REq888
- 31
3
votes
0 answers
pppd loses ADSL IPv6 connection after 30 minutes
I run a modem in bridge mode and use pppd to open the connection. While the IPv4 connection is stable, the IPv6 connection seems to die exactly 30 minutes after opening it. ping6 starts returning Network is unreachable after about 1800 seconds.
The…
passy
- 333
3
votes
1 answer
Configuring a PPP device with NetworkManager nmcli
I have the ppp and network-manager packages installed on my Debian-based BeagleBone and I'm trying to reliably connect it to a GPRS modem over serial.
I'm using an Adafruit FONA which works like a charm with the recommended configuration script…
Chris Watts
- 293
2
votes
1 answer
How to preserve L2 headers while sending Ethernet frames over serial line
I am using pppd (in linux) to send ethernet data over a serial line to another computer.
How can I preserve L2 headers while sending Ethernet frames over serial line?
It seems the ppp protocol sends only the "L3 data" as its payload thus dropping…
user49114
- 21
2
votes
2 answers
Is a FreeBSD equivalent of pppd required? If yes, is it /usr/sbin/ppp?
On the Wikipedia page and the official webpage, only Linux and Solaris are listed as possible platforms. The FreeBSD handbook mentions pppd, but it is used to refer to the kernel implementation in section 28.2.1.2. Since it was removed in 8.x, I…
Janus Troelsen
- 2,355
2
votes
1 answer
Why is PPPoE used for DSL rather than EAPoL?
While learning for my IT Security exam I wonder why PPPoE is used for establishing DSL connections instead of EAPoL?
In PPPoE, the authentication is embedded in PPP frames, which are embedded in PPPoE frames, which are embedded in Ethernet frames.…
msander
- 123