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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Security of PPTP vs IPSec

Is PPTP or IPSEC VPN more secure than the other for 'dial in' VPN, if so, why?
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4answers
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Windows VPN client connect on different port

Scenario: Two Windows Server 2003 machines running RRAS VPNs. The firewall port forwards 1723 to one of those machines for normal remote access. I'd like to find a way to connect to the second machine ...
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2answers
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L2TP client for Ubuntu

It's easy enough to get a pptp client going on a Ubuntu 9.04 (Jaunty) desktop: sudo apt-get install network-manager-pptp However, I can't seem to find documentation find a corresponding L2TP ...
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4answers
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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!
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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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How can I force all internet traffic over a PPTP VPN but still allow local lan access?

I have a server running Linux Mint 12 that I want to keep connected to a PPTP VPN all the time. The VPN server is pretty reliable, but it drops on occasion so I just want to make it so all internet ...
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1answer
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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 ...
4
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2answers
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Mac OS X PPTP VPN issue ping: sendto: No buffer space available

The VPN connects successfully but after some time the connection is unusable (VPN is used as primary gateway). Ping would reveal: ping: sendto: No buffer space available This looks like the same ...
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525 views

How can I ensure home VPN users don't save connection password?

We are using a PPTP VPN, on Windows RAS/Server 2003. We have users verify anti-virus patching, and then after verification grant access to the VPN. We don't use a CMAK applet, we just provide users ...
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2answers
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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. ...
4
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2answers
803 views

Linux PPTP VPN server using local account passwords?

Is there a way to configure the PPTP server under Ubuntu 10.04 to allow users to log in with their username/password from the local machine (the Ubuntu server, that is, not where they are connecting ...
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2answers
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Windows remote access server (PPTP) advertised routes

How does a routing and remote access server pick up routes to advertise to clients, and where can a list of routes being provided be reviewed? One of our users is reporting that the server is ...
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6answers
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What's the advantage of OpenVPN over SSTP?

If considering Windows only environment, what's the advantage of introducing OpenVPN as the company VPN service, instead of Windows built-in protocols? Especially the new SSTP protocol already ...
3
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2answers
3k views

Once connected to RRAS VPN in Windows 7 can't access local domain resources

I'm connected to our remote data center via RRAS VPN which is running as a Domain Controller. The client I'm connecting with is on our local domain. Once I'm connected to the remote domain using my ...
3
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2answers
3k views

Error 720 on VPN (PPTP) attempt

When I attempt to connect to a server running XP x64 (so essentially Server 2003) using a PPTP connection, it fails with client-side error Registering your computer on the network... Error 720: A ...
3
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1answer
189 views

Error with a vpn client (PPTP protocole) over ssh

I have some errors when I use PPTP over ssh : sudo ssh -L 1723:127.0.0.1:1723 vpn-server@$192.168.1.1 192.168.1.1 is the vpn server ip. When I start pppd (client) whith the following command : ...
3
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1answer
1k views

Iptables: Selective PPTP VPN routing

I've been able to set up TomatoUSB firmware with Ipredator via PPTP, the configuration is as follows: However, I don't want to use Ipredator PPTP VPN for every machine on my network, how to only ...
3
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2answers
360 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, ...
3
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2answers
2k views

Windows pptp VPN at startup

I'd like to connect windows pptp client at startup. Is it possible? because I need a vpn link between two windows server and so (because it's a server) I don't want to let a logged user to the ...
3
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1answer
13k views

Can't establish PPTP VPN windows 8/8.1

I am having an issue where I keep getting either error 800 or 807 whist trying to connect to a VPN server via PPTP on Windows 8 and 8.1 pro. The server itself is Synology's VPN Server running on a ...
3
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3answers
2k views

How do I get internal hosts to use a VPN connection set up on a FreeBSD router?

Question in short: How do I get traffic from a host on an internal network, using NAT behind a router, to use a VPN connection set up on the router? I have a FreeBSD 9 router with 4 network ...
3
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2answers
2k views

PPTP Clients Connect But Do Not Have Network Access

I have clients that connect to a Window Server 2008 R2 box via PPTP. They are able to successfully negotiate a connection and receive a local IP address, but are unable to access any internal network ...
3
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1answer
7k views

PPTP connection fails with errors 800/806

I've got a client (Server 2008 R2) that won't connect to our production environment PPTP VPN server (Server 2003, running RRAS). The server is behind a firewall that has TCP1723 open as well as GRE. ...
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3answers
5k views

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 ...
2
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3answers
6k views

PFsense VPN all types failing?

I am trying to configure a new PFsense router (64 bit) and am trying to to get the VPN functions working. I have enabled PPTP, L2TP and IPSec. I've added allow all rules to all LAN's, WAN's and each ...
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4answers
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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 ...
2
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3answers
24k views

windows pptp vpn client *do not* use default gateway on remote network

By default the windows vpn client has this checked in the advanced tcp/ip settings: Use default gateway on remote network... I do not want to use the default remote gateway... (the clients internet ...
2
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1answer
527 views

More than 254 client IPs in PPTP (PPTPD)

I'm trying to setup my PPTP to allow more than 255 client connections. I have added the connections param in pptpd.conf to allow the connections but I do not know how to set the remoteip ...
2
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1answer
848 views

PPTP installation on CentOS 5 not working (Kernel support for PPP?)

I am trying to get PPTP installation up and running on my VPS. I have followed various guides, however, I am unable to connect to the VPN once it’s setup. I checked my VPS’ /var/log/messages and I ...
2
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1answer
1k views

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 ...
2
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1answer
10k 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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3answers
505 views

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 : ...
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5answers
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DNS Server Order Incorrect on Windows 7 via PPTP VPN to Windows 2003 Server

When I connect a Windows XP laptop via PPTP vpn to our Windows 2003 Server, the DNS Server order is correct: 192.168.8.3 208.67.222.222 208.67.220.220 But when I connect a Windows 7 laptop via PPTP ...
2
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1answer
4k views

Routing traffic between home machines and remote machines over pfSense PPTP VPN…?

I'm having a bit of trouble routing my traffic through my VPN server. Basically I have a pfSense setup that works amazingly well for everything it's currently doing. However, now, I have need to set ...
2
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1answer
5k views

pppd “peer refused to authenticate”

I have a working pptpd+pppd server configured which currently has two Windows 7 clients successfully connecting. However, when I try to connect a linux client I'm getting a really weird exchange that ...
2
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1answer
956 views

How do I make servers visible on my VPN?

I'm tinkering with web servers on Rackspace, trying to figure out if I can set up a website with public parts and also private parts that are visible only via a VPN connection. I have 2 servers ...
2
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1answer
6k views

What ports need to be open for PPTP VPN server?

I'm running a PPTP VPN server on my DD-WRT enabled router, and it works inside the network but obviously not outside because I haven't opened and ports. What ports need to be open for the VPN server ...
2
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2answers
128 views

Replace Cisco 2600 PTP T1

Our office and an outside location have a dedicated T1 point to point connected with Cisco2600's. We need to eliminate the need of the T1 circuit as it is costly and would like to route the traffic ...
2
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2answers
2k views

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 ...
2
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1answer
196 views

Rewrapping PPPoE to PPTP

It is my understanding that PPPoE is just PPP wrapped in Ethernet packets. PPTP is PPP tunneled over GRE/IP. So, my question is, is it possible to take incoming PPPoE packets and easily rewrap the ...
2
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1answer
459 views

Possible to connect to VPN (pptp) with a host name

I have a few computers that I need to connect to a VPN. Right now, I have to manually check to see what IP address the VPN assigned each computer so that I can SSH into each later. Ideally, it would ...
2
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1answer
487 views

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 ...
2
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2answers
5k views

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 ...
2
votes
3answers
1k views

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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2answers
2k 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 ...
2
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1answer
3k views

VPN Error 778: It was not possible to verify the identity of the server

We have a Windows 2003 server with Routing and Remote Access configured to support PPTP VPN. We recently migrated the server infrastructure to a new location, although all public and private IP ...
2
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3answers
10k views

PPTP pass through on Cisco ASA 5505 (8.2)

Is it possible to setup PPTP VPN traffic (clients outside and server inside) to passthrough a Cisco ASA 5505 if the outside IP address is also being used for PAT? The Cisco examples forward all NAT ...
2
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1answer
1k views

Routing traffic through PPTP VPN

I have a Windows XP SP3 with set up VPN PPTP server, and i need to make it available for the clients to access the internet via the VPN server, but i have a problem. Everything is set up corectly (I ...
2
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1answer
196 views

Windows 7 VPN to OS X Server error 629, Tried a lot of options

I am having a hard time connecting to my office server in which I am the admin of. I have recently wiped the hard drive and re-installed os x yosemite with os x server. I use a Windows 7 machine at ...
2
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0answers
88 views

changing pptp client default port

I am trying to setup PPTP connections to 2 separate servers through a firewall. No problem for one server, just port forwarded ports 47 and 1723 on through to server 1. To connect to server 2 my ...