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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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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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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472 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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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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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 ...
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693 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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287 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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391 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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375 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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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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153 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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346 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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610 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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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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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
991 views

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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643 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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656 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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166 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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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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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 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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560 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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927 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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202 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!
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188 views

How to capture packets of VPN

I hava 2 VPN servers, one is pptp, one is openVPN, I need to capture the VPN response packets for the VPN client, and later I need to forward these packets to vpn clients by another linux server. I ...
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492 views

Can I route packets between PPTP clients?

I hava one pptp gateway(192.168.1.1), and one pptp linux client(192.168.1.2), and one pptp windows client(192.168.1.3), When gateway receives response packets of 192.168.1.3 , can i forward these ...
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what is simplest VPN type approach to use with home network when travelling? [closed]

I'm going travelling and would like to be able to VPN from a internet cafe to home so I can do internet banking more securely. Any advice re what would be the best VPN technology/approach to use ...
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Can't ping through PPTP when Shorewall is active

I have a pptpd server and Shorewall running on the same server. The server has two ethernet connections (eth0 -> WAN, eth1 -> LAN) and its IP on the LAN is 10.11.100.201 I can establish a VPN-tunnel ...
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736 views

Slow connections across VPN

I have a few databases located on a VPN. Whenever I establish a new connection to these databases across the VPN, it takes along time (3-4 seconds). Once established, everything seems to run ...
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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 ...
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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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202 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 ...
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419 views

Requiring authentication for Internet access on an open network

If I have an open mesh wireless network (or, really, any open access network) and I want to keep the network open access: that is, anyone with the right hardware should be able to connect and talk to ...
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455 views

Can radius interact with pptp beyond authentication?

I've managed to setup pptp to use Radius authentication - making it much easier to manage users in an sql database than the default password file. However, ideally I'd like to be able to get the ...
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pptp vpn - Kill User Connection

I'd like to be able to terminate a user's connection to my pptp server from the server itself without interrupting anyone else's connection. Problem is - I have no idea how and have found no useful ...
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Client VPN works, but only from certain locations (ISA/TMG)

I've done something very simple. Or so I thought... I have setup VPN client access in TMG (or ISA, they're pretty alike). I created a group called VPN in AD, added that as allowed VPN users in TMG, ...
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Intermittently failing PPTP VPN connections

I'm two weeks in as the System Administrator at a midsize manufacturing company with executives and sales staff who make heavy use of remote access. From almost the day I arrived, I started getting ...
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3answers
2k views

Can't connect to PPTP server outside of network

I'm trying to configure my Cisco 881 running IOS 15 to allow pptp connections to servers outside of the network. I know the PPTP server is configured correctly, because a)it's a clients VPN, and b) ...
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2answers
11k views

Debian server + PPTP VPN - connection not working

I set up a Seagate DockStar with Debian Squeeze as a litte server in my home network. I'd like to access it from outside my own network now, so I need a VPN connection. BTW, I don't have a router with ...
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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 ...
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Error 619 PPTP VPN on Windows 7

I have spent 3 hours trying to work this out but I'm all out of ideas. I have a 3G internet connection via a USB dongle and a Windows 7 laptop, I cannot connect to a PPTP VPN while connected to the ...
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4k views

Linux VPN Client with SecurID/RSA Tokens?

I'm setting up a VPN that needs to have clients on Linux, Windows, and Mac. I was planning to sue a PPTP client, with RADIUS to the SecurID RSA install, but I can't find any way to set up a linux ...
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362 views

PPTP + Ubuntu + Windows XP: Cant ping Router

I have an ubuntu server with 2 network cards: eth0, with a samba server and eth1 bridged to a Virtual Box Machine running windows xp. When I connect to the network using VPN from another winxp ...