Point-to-Point Protocol
The Point-to-Point Protocol is a link-layer protocol for networking between two network nodes.
Questions tagged [point-to-point-protocol]
86 questions
2
votes
3 answers
Linux server not receiving default IPv6 route over PPP link
I'm replacing a pfSense router in a remote office with a small linux device, running Debian. The router only has to handle very basic iptables / DHCP and VPN facilities. It is configured so that the upstream provider is a PPPoE connection, down…
growse
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2 answers
What is the point of PPPoE?
I am trying to expand my knowledge of networking beyond the basics. I have started reading about PPP, and how it is used in DSL modems with PPPoE and PPPoA.
My first impression of PPP was "well that seems pretty similar to Ethernet". They are both…
aaa90210
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2 answers
Using a broadcast or network ID as src IP in PPP?
In case of PPP, are we allowed to use any IP address including broadcast & network id as the source address?
For example:
192.168.1.0, 192.168.1.255?
One of the customer has configured a DHCP pool for a PPP as 192.168.0.1 to 192.168.1.254. (instead…
mks
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1
vote
1 answer
openfortivpn kills my routes
I am trying to use openfortivpn to connect. Previously I had been using the Fortinet VPN client on MS-Windows - I now get blue screens every time I try to start it (I am downloading the upgraded version, but want to configure this on Linux for other…
symcbean
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2 answers
Linux pppoe/pppd won't connect to Centurylink fiber
Equipment:
Fedora 27 x86_64
Technicolor C2100T DSL modem/router
Unknown Centurylink ONT optical adapter`
I recently switched from CL 80mb DSL to CL 1000mb fiber, which still relies on pppoe. I have always used a basic Linux Fedora machine as the…
bfoddy
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vote
0 answers
FreeRADIUS 3, libradcli4 and ppp compatibility
I'm using Freeradius to authenticate VPN clients using PPTP or L2TP/IPSec (xl2tpd) and I want to do an upgrade from Debian 8 to 9 on our servers incl. upgrading version of Freeradius (2 -> 3).
Both PPTP and L2TP are using radius.so plugin in their…
Naxos
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1
vote
1 answer
Connect into a custom PPPoE server in Ubuntu in an Virtualbox experimental setup. Connection Fail
I am using an Ubuntu Server 18.04.2LTS and I want to try to make it as a ppp server in order to study the protocol a bit better via wireshark.
The idea is to use virtualbox and use virtual machines as the following diagram shows:
Each Vm connected…
Dimitrios Desyllas
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1
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0 answers
Openswan l2tp vpn ppp wrong ip address
Using Openswan with xl2tp on archlinux (4.20) to connect to a vpn, I can create the tunnel and the ppp interface is created howerver it gets the wrong ip address:
enp4s0: mtu 1500 qdisc mq state UP group…
2A-66-42
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vote
1 answer
How to route internet to an interface ppp0 that I called to?
My scenario is:
host1 has internet connection through interface eth0;
host1 dial up host2 and establishes a PPP connection with it;
host2 has no internet access;
host1 needs to share internet connection with host2 using this interface ppp0;
So, I…
Thiago Melo
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connecting Linux pppd to LDAP server to authenticate MSCHAPv2?
I need to provide a remote access VPN service. I'd like very much to use JumpCloud.com to do the user database management. I'm trying to achieve the following:
Provide l2tp+ipsec VPN service to users, hosted on Ubuntu 14.04 on AWS.
Mac OSX clients…
Capt. Crunch
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vote
0 answers
Joining a UDP multicast through a server on the other side of the tunnel
I've drawn a diagram below to help with this question!
So a company published a multicast UDP feed (company A) and another company connects to it (Company B). I have a point-to-point tunnel to Company B.
How can I get our machine to join the…
FinDev
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1
vote
1 answer
Remove Remote Access Role from WS2012 R2
We have a Windows 2012 R2 server; we use it for AD domain controller and DNS. Can I remove the Remote Access role and the "DirectAccess and VPN (RAS)" Role Service (in Server Manager) from my machine? I presume that Remote Access has to do with VPN…
Mike S
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PPP Adapter answer instead of local NIC
I have set up our DC as a RAS server.
I am now aware that this it not a recommended thing to do, but it's done, and it's our only server so it saves me a lot of work if I can keep it like this.
It's been working fine until I tried to install a new…
TorF
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2 answers
Seeing Who is Logged into LibreSwan VPN
We recently setup a LibreSwan VPN and for the most part it is working great. One thing we are having some trouble with is trying to see who is currently logged in. I found a solution for seeing the number of active solutions at…
Nathan
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2 answers
IPv6 PPP Link fails forwarding Router Advertisements into local LAN
A Debian Server having eth0, eth1. eth2, ppp0 devices:
2: eth0: mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether xx:yy:zz:yy:xx:yy brd ff:ff:ff:ff:ff:ff
3: eth1: mtu 1500…
3ronco
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