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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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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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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160 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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2answers
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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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1k 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 courseļ¼Œ 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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495 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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733 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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1answer
174 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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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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1answer
181 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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398 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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5answers
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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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1answer
1k views

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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2answers
550 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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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 ...
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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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1answer
192 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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394 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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2answers
427 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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2answers
2k views

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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1answer
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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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4answers
992 views

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
1k 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
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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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1answer
2k 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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1answer
3k views

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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2answers
3k 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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1answer
353 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 ...
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6answers
11k views

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 ...
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1answer
366 views

PPTP-Gateway routes icmp but no http

got a very strange behaviour with a Gentoo-based PPTP-Gateway here. I configured the VPN and the default routes - from the Gateway itself, the connections out to the VPN work great. But from the ...
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Using PFSense to securely connect two networks

At our local office we have a WAN connection which we break off into two VLANs using a Cisco RVS4000 Router: Our main gigabit ethernet wired network 10.1.0.0/24 and a wireless network 172.16.1.0/24. ...
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PPTP/GRE Multi-forwarding NAT IPTables Example

Google is showing me some returns on PPTP/GRE NAT through iptables/netfilter that will allow multiple connections. However, I am not finding an example of using this pptp helper module that allows ...
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2answers
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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 ...
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2answers
721 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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Ubuntu Server IPtables to Allow PPTP VPN Traffic

I am trying to setup a "simple" VPN server for my network so I can easily connect remotely to a few boxes in my network. I can access the VPN and register on the network. I get an IP but can not ping ...
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1answer
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Linux PPTP client problems

I recently reinstalled my server from Debian Lenny to Squeeze and ever since the reinstall I'm unable to establish a PPTP connection to a remote site. The remote site is running Windows RRAS PPTP ...
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Export or Batch script Windows VPN Network Connection

We use a Windows PPTP VPN connection to get onto our network's VPN. Is there a way I can write a batch script or export my settings to add this VPN connection to another person's computer. I also ...
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1answer
494 views

Can't RDP Into Windows Server After Windows Server Establishes VPN Session

I've setup a Windows 2008 Server in a Cloud Environment. I am able to RDP to this Windows Server ("aka CloudServer") in the Cloud Environment. When I establish PPTP VPN connection from the ...
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1answer
218 views

pptp server 2003 hands out gateway from nic not dhcp server

I have created a pptp RRAS server for a handful of clients to connect to. I would like them to use the servers default gateway (.1) for internet access. They are able to successfully connect (& ...
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1answer
2k views

DD-WRT VPN error 800?

I have set up a router with DD-WRT Mega on my Asus WL-500gP V2, and I can't connect to the VPN service. I have set it up according to the configuration on the DD-WRT wiki, so the server IP is set to ...
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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 ...
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3answers
8k 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 ...
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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 ...
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567 views

How to enable (disable) PPTP multi login (of a same account) on Linux?

I know there is duplicate-cn for OpenVPN. What's the similar setting in PPP based VPN?
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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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VPN Device behind router/firewall

ROUTER A: Peplink 310 serving as the gateway/router/firewall at one location. ROUTER B: Linksys RV082 serving as the gateway/router/firewall at another location. I want to VPN these two locations ...
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How to Route Traffic in Case PPTP Remote Client is on Same Subnet as Server

I've a PPTP server setup on my local home network (192.168.1.0/24, pfSense). Now sometimes when I'm away and want to connect remotely my client (Windows 7) is also on the same network because e.g. the ...