Point-To-Point Tunnelling Protocol is a networking protocol which exposes a layer 2 tunnel. It uses a TCP connection for control communications, and a GRE tunnel for the actual data. It is typically used to create VPNs.

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Route Server 08 R2 VPN (PPTP) traffic to two subnets (public & private)

I recently transitioned our VPN server from a Windows Server '03 box to '08 R2, both using built-in Routing and Remote Access for PPTP connections. Our firewall has a rule that forwards traffic from a ...
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VPN IP Routing - slow connections

UPDATE: Router error logs show: LCP Time-out 0 I'm not sure how to correct this. The Lan-to-Lan profiles are set to -1 Idle Timeout (for the remote branch). I have a PPTP VPN running between two ...
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193 views

Do I really need RRAS for serving a PPTP connection?

Setting up PPTP has been a pain so far in Windows Server 2003. I've already tried creating a new network connection, which creates some kind of network adapter for "Incoming connections", which ...
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2answers
437 views

ProCurve 1800 switch issue

I recently deployed ProCurve 1800-24G switches in place of some older ProCurve 2424M switches in my network. However, I'm having a serious problem with the switch connected to the router. It seems, ...
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1answer
267 views

Connect to server via VPN-tunnel to same server

Sorry, if title is unclear, here is the setup: There is machine A, running Linux. A is part of university network and has single network interface with real IP. But connections from outside of campus ...
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PPTP connection fails during handshake

A user located on the other side of the planet has troubles connecting to our PPTP VPN. The VPN is a regular windows server 2003 VPN and works fine for most users from the US, but for this specific ...
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2k views

Ubuntu: pptp client & route all

My purpose is to route all traffic through a pptp connection from a linux machine. (Windows does this automatically after connecting to a pptp server). The command pptpsetup --create TUNNEL --server ...
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370 views

how to choose secure PPTP password?

I'm running a PPTP server on a ubuntu VPS, which has around 20 users . currently we use passwords like this "bi9_Knh78A#" . is this considered safe ? What's the best method to choose passwords ? How ...
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379 views

AWS-hosted sites unreachable from my EC2-based VPN

So I setup a simple PPTP VPN on my EC2 Ubuntu instance. However, when I'm connected to that VPN from my laptop, I'm unable to access any AWS-hosted sites/services (times out). Everything else works. ...
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PFSense 2.0 RC 3 - Routing problem with PPTP VPN

I have configured a PPTP VPN on my PFSense 2.0 RC3 router. The internet traffic comes to my modem (10.0.0.0/24) and then through my router (192.168.100.0/24). My PPTP subnet is 192.168.101.0/24. ...
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How Does VPN Passthrough Actually Work?

I am interested in PPTP passthrough here not Ipsec etc. I have looked on the net but can't find out how it is done. I am an IT administrator myself and know a lot routing, NAT etc. I think I know how ...
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964 views

PPTP works on Debian 6.0 but not Debian 5.0 or CentOS?

I installed PPTP successfully on a Debian 6.0 64-bit machine, and tried to mimic the installation on both a Debian 5.0 machine, and a CentOS machine. However, I get error codes on connecting with both ...
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3answers
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Is a PPTP VPN too insecure to consider using?

I need to set up a VPN for our small office. There will only be one person using it, and they will be transmitting private financial information in many cases. I know that PPTP has a number of ...
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4answers
7k views

Is it possible to force PPTP VPN tunnel as the only internet connection on a windows 7 machine?

I use a PPTP VPN tunnel to connect to the internet. I want the connection to cut off if there is a problem with the VPN and it drops/disconnects so there is no way to access the Internet without a ...
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1answer
2k views

Cisco 877 VPN: PPTP encryption not working

A followup to this question. I have a Cisco 877 ADSL router configured (at last!) to act as a VPN server; it supports both PPTP and L2TP VPNs, and I can successfully connect to it from Windows ...
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2k views

PPTP traffic logging

I am running pptpd on a Centos 5 machine but I didnt set up any logging. In case of an abuse, I need to determine which of my users did the bad things, meaning I need to log all the traffic. I may ...
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PPTP VPN iptables firewall issues csf [closed]

I am having a problem with iptables and a PPTP VPN, I have read related topics both on hear and online but still can't get it to work! I am trying to set up PPTP on an ubuntu server on our local ...
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2answers
13k views

PPTP VPN Problem

I am using Debian OS with pptpd. My clients (both Windows and Mac) cannot complete the connection. The following shows in syslog: Jun 2 12:52:37 vpn pptpd[891]: MGR: Maximum of 6 connections ...
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314 views

Can I assign a different DNS for 192.168.*.*?

I'm trying to connect to my company's network via PPTP VPN from Mac OS X. I had a problem which turned out to be wrong netmask configuration which prevented 192.168.10.16 and 17 DNS servers from ...
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244 views

PPTPd only routing to eth0

How do I enable routing to eth0 without having the ability to communicate amongst pptp clients? I know ip_forward = 1 makes routing of pptp clients possible, but i dont want communication under pptp ...
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1answer
177 views

Setting up pptp-server on vps

I'm trying to set up a pptp-server on my vps, but I'm lost as to what the "localip" and "remoteip" settings have to be. My VPS has only 1 IP address, so I don't really know what to put as a remoteip.
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532 views

VPN server setup on a 2008 R2 Hyper-V VPS

I am renting a Windows 2008 R2 VPS (Hyper-V). It has 1 network adapter which has a public IP statically assigned. I wish to allow incoming VPN connections, so that I can access SMB for a central file ...
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3k views

VPN PPTPD with MPPE Support for Debian or Ubuntu

Having an unencrypted vpn connection from a windows client to linux is pretty easy by using pptpd. When I was looking for an solution for encrypted (per MPPE) connection, I found a lot of information ...
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PPTP VPN monitoring web traffic URLs

I setup a PPTP VPN server (pptpd) on Ubuntu 10.04 and need the ability to monitor URLs that are being accessed via the web browser (80/443). I was thinking of utilizing a proxy like Squid, but wanted ...
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779 views

PPTP VPN on one port

I have a pptp VPN login, it is possible to set this VPN connection to only one port? For example I want to redirect my VPN connection to FTP's port 21. Then access FTP from outside from the VPN adress....
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752 views

VPN personal tunnel/bridge

At our office some of our staff has VPN accounts to another network. Our problem is that each person needs to maintain their own vpn setup and due to our non-perfect ISP they constantly get the ...
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1answer
292 views

How to config 2 interface with pptp?

In this topic Which is the best OS for PPTP ? : server with this CPU and 2 Intel PRO/1000 network adapters really handles ~2 hour peak of 250MBit/s internet traffic on one interface and ...
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560 views

Can I host a VPN service on a shared Windows Host I already have?

I have a windows hosting plan with Plesk control panel, FTP, email and other popular options already found in common windows hosting plans. I want to know whether I can convert my hosting plan to a ...
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1answer
377 views

Windows 7 PPTP VPN problem

I'm currently using an win 7 as an network server at my home. I've created some shared folders wich can be accessed easily from any pc on my network (win and mac computers) recently I decided to ...
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1answer
1k views

Route through site-to-site VPN not working

I'm trying to set up a site-to-site VPN using RRAS on two 2K8r2 servers since yesterday. The connection is working at this point, but I can't get it to send traffic from one site to the other one. ...
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154 views

How to through PPTP?

Basically I have a PPTP server, and there are pptp end-point and a real network "behind" it with servers and I want to test the bandwidth from a server which is on the real network to the clients ...
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once VPNed into pfSense, unable to hit the public URLs of my websites - they are routed to the pfSense box

I have a pfSense box setup as the firewall/router/VPN appliance at my colo. Once I VPN into the colo (either pptp or openvpn, pptp preferred due to multiple clients and ease of configuration), I am ...
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356 views

Windows VPN with internet access

At work we have a Windows PPTP VPN server. I'm guessing it's an XP server, but I'm not sure and I'm not allowed to peek. At home I have a Mac Mini running Snow Leopard. When I connect to the PPTP ...
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1answer
642 views

Windows Server 2008 PPTP connection disconnects at random times and will not reconnect

I'm running into an issue with a VPN over a PPTP (WAN Miniport) connection. There are two significant issues: The connection will not stay active if we log off the machine. Currently we login via ...
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3answers
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Making to the DNS on two different VPNs play nice

Setup: I have two separate networks I need to connect to at the same time. VPN 1 PPTP IP : 192.168.2.0/24 DNS : 192.168.2.32; 192.168.2.34 (Windows 2003) Domain : old.com Forwarder : 192....
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How do I set up routing for PPTP VPN on Windows Server 2008 R2?

I am trying to set up a remote access VPN server to enable our employees to connect to the office network and access resources on it. In addition, several of our production servers (not located at the ...
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5answers
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Trying to get an ubuntu headless server to call home

I would like to install PPTP on my remote ubuntu server, so that it will connect back to the main office, so that backups, and and also data transfer can take place. Can anyone suggest a good guide ...
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678 views

pptp cannot connect

I have a pptp server on ubuntu behind a router. From inside the network I can connect to pptp server, but from the internet I can not. 1723, 1792 port are forwarded in router. Here is a full log: ...
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683 views

Which is the best OS for PPTP?

I installed PPTPD on both Redhat and ubuntu, and I found that the ubuntu is more slow than Redhat by testing, that is to say, Need I do some network optimization with Ubuntu?
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3answers
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Routing a PPTP client and VMware Server instance running on the same box

I have a Windows 2003 SBS box. It has 2 physical NIC's: WAN and LAN. The WAN is a public IP. The LAN is a simple 192.168.2.x subnet with Microsoft DHCP Server. Microsoft Routing and Remote Access ...
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169 views

Protocol Security With PPTP

I find these words in pptp client source : Summary by Peter Mueller PPTP is known to be a faulty protocol. The designers of the ...
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3k views

How to setup a fast VPN server

I am trying to set up a VPN that has a fast download speed. The server I have is a linux server and from there I can download 2 megabytes a second. At home I can also download with 2 megabytes a ...
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2k views

What is difference between L2TP and PPTP?

I need a high performance VPN server, who can tell me the difference between L2TP and PPTP ?
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2k views

How to improve PPTP speed?

I want to supply PPTP(vpn) service to users, and I plan to supply one server for 30 users and give at lease 10M bandwidth per user. Of course, my server has enough bandwidth. I want to ask is my ...
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How to raise speed with PPTP?

I am using pptp to access internet, I find that, the speed is about 200k/s if use pptp, the speed is 1M/s without pptp. so how to raise the pptp speed? thanks!
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How to make an OpenVPN connection over pptp connection in ubuntu

I need to connect to my ISP's server using pptp. And then I need to connect to the private network at my office using OpenVPN. OS: Ubuntu 10.10 How can I make such connection? Thank you.
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610 views

Debian firewall: Shorewall - VPN2VPN policy doesn't work

I have a problem with my shorewall policy. There are 4 zones configured in shorewall but the policy vpn2vpn:accept doesn't work. I want to establish connections between PPTP clients. They are dropped ...
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1k views

How to disable encryption for the remote vpn clients in PPTP?

I find there is one compress PPP packet in GRE packet, so how to get the PPP packet without encryption and compression ? thanks
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287 views

How to get vpn pptp client ip in GRE packets?

I hava captured some packets for pptp client, but how to get the virtual ip of pptp client? thanks
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What is difference between OpenVPN and PPTP?

I know PPTP is based PPP, so what is the openVPN based on ? can the packets of openVPN be routed by ubuntu server ? thanks!