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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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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932 views

VPN error 619 - “A connection to the remote computer could not be established.”

Have been trying to get this PPTP VPN working on a CentOS 6 x64 VPS for a few days but im getting: "Error 619 - A connection to the remote computer could not be established." I did research on ...
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550 views

No internet access on VPN

I am trying to get PPTPD working on a dedicated debian-squeeze server. I can connect to the VPN just fine, but I do not have any access to the internet. Only the local network. This is a log file of ...
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115 views

Ping connected Clients to VPN tunnel PPTP

I have set up a vpn server on CentOS 6 (PPTP) following this guide... Server End ifconfig ppp0 Link encap:Point-to-Point Protocol inet addr:192.168.1.15 P-t-P:192.168.1.200 ...
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46 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 ...
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249 views

Trying to change a custom VPN port back to the original on Fortigate 40C

We recently changed our firewall and bought a Fortigate 40C device. We wanted to use our old VPN settings. The Fortigate support technician told us that this model was new and he didn't know it in ...
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128 views

how to manage bandwidth and amount of traffic over pptp?

I'm running Ubuntu 12.04.4 and using it as internet server , file server and printer server. The problem is that my company manager decided to limit bandwidth and the amount of data per user per ...
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55 views

Open ports for VPN users

I have been looking around for some time for answer to this, and have yet to find one. The issue that I am having is that users that are connected to the VPN cannot do the following, as examples: ...
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270 views

Vyatta Remote Access VPN firewall (PPTP)

I am using Vyatta Remote Access VPN (PPTP) and NAT for proxy. When pc-A and pc-B are connected to VPN, pc-A ipaddress is 192.168.10.10 and pc-B is 192.168.10.11. ...
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202 views

LAN to PPTP VPN bridge

I am pretty new to VPN and networking stuff so please bear with me if this seems a noob question. I have a cisco linksys e2500 router running on Tomato firmware. My situation is, I have set up a PPTP ...
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394 views

VPN (PPTP with MPPE 128) + SMB2 -> plain text transmissions?

Setup: I have a simple test setup: PC (Win7) and Server (Win Server 2008) and I open a VPN tunnel between the two of them via PPTP (encrypted with MPPE 128). The server has a shared folder that the ...
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419 views

PPTP won't connect error 628

vim /etc/ppp/chap-secrets # Secrets for authentication using CHAP # client server secret IP addresses #* pptpd 34fg3g93jgij3g * and vim /etc/radiusclient/servers ...
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162 views

Multiple Devices connecting to VPN on CentOS server

I am looking for a solution as to what would be the VPN software for multiple OSes and Devices. I currently have 15 systems to connect to a VPN. I was using Hamachi from LogMeIn but their lack of ...
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45 views

Debian PPTPD Misunderstanding

I have just installed pptpd on a debian server, configured the ip to 10.0.0.1 and started the service. The service appears to be running on eth0: gl.ob.al.ip:1723, which is as expected. However I ...
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300 views

Setting up Squid -> VPN connection

I recently purchased a VPS and am wanting to use it as a VPN server. However, it has bandwidth limitations. So, I figured since I already have a local Squid proxy caching things for me, I could have ...
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PPTP VPN Not Working - Peer failed CHAP authentication, PTY read or GRE write failed

Brand-new install of CentOS 6.3. Followed this guide: http://www.members.optushome.com.au/~wskwok/poptop_ads_howto_1.htm And I got PPTPd running [v1.3.4]. I got the VPN to authenticate users against ...
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633 views

What IPTables settings are needed to allow multiple clients to tunnel through a VPN

I'm trying to lock down my VPS but still allow PPTP-VPN access and am running into a snag. Hoping someone may be able to offer input. Basically trying to figure out what part of my iptables is ...
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397 views

Connection fails to a PPTP server

I am having some problems connecting to my PPTP server. Sometimes I connect just fine but if I try in a few minutes, the connection may fail. I am connecting to Ubuntu 10.04 from Ubuntu 11.04 with no ...
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386 views

What steps can I follow to diagnose why PPTP VPN (rasClient) has suddenly stopped connecting?

I use my a Windows Server 2008 R2 workstation as a VPN client to a Windows 2003 RRAS VPN host. It has worked flawlessly for many months. All of sudden, rasClient stops connecting and throws: Error ...
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78 views

Is it possible to set up a pptp server in windows via console?

I want to be able to turn a machine into a pptp server from commandline so that it can be scripted, is this possible?
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pptp gateway with ssh access

I am desperately trying to setup a gateway-server that forwards all local traffic to a ppp0 connection but is still reachable via ssh on the local network. The point-to-point connection establishes ...
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20 views

Outlook cannot connect to Exchange over PPTP VPN on some PCs but not others

I have a few clients (notably only in the IS department) that aren't able to connect to Exchange 2010 with Outlook 2010 over our PPTP VPN connection, citing that Exchange is unavailable. This is true ...
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25 views

Poptop unable to authenticate against RSA Authentication Manager via RADIUS

Unfortunately I haven't been able to find an answer to this through Googling, searching Stack sites, etc. Any help provided would be appreciated. I'm setting up Poptop and it needs to authenticate ...
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88 views

Windows PPTP VPN - Slow File Transfer

I currently have a PPTP VPN configured between my SBS 2011 box on site and a Server 2008 R2 box in a datacentre. Line speed in the office is 20Mb leased line with 1:1 contention and obviously the ...
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54 views

VPN connection between EC2 instance and router from another subnet

We have a problem wile connecting to EC2 instance with Wi-Fi router. I had connected my office router to the EC2 instance via PPTP protocol. Everything is fine and my router's WAN interface got IP ...
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79 views

Pptp Vpn: buffering packet .. (expecting .., lost or reordered)

System log is full of such messages. AFAIK this can be related to MTU size. ppp0 negotiates a MTU of 1396 with the ISP. I've tried so far: ip link set dev .. mtu 1396 iptables -A FORWARD -i ...
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120 views

CentOS 6.5 PPTPD, mac cannot connect

OS: centos 6.5 32bit OpenVZ 512MB + 512MB vSwap *nat :PREROUTING ACCEPT [2560:174872] :POSTROUTING ACCEPT [0:0] :OUTPUT ACCEPT [443:25824] -A POSTROUTING -o eth0 -j MASQUERADE -A POSTROUTING -j SNAT ...
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128 views

Openvpn server behind NAT router with PPTP connection to service provider

I have Zyxel router connected to service provider using PPTP. Behind the router there is a Ubuntu box with OpenVPN server. I would like to forward a port for OpenVPN server to access it from internet. ...
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93 views

Persistent PPTP 807 through a single 877w edge router

Im setting up another vpn for cleaning malware infected computers remotely and some other things, Normally id use SSTP nat tcp 443 and be done in 5 minutes but in this case I need to use another ...
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825 views

Site-to-Site PPTP VPN connection between two Windows Server 2008 R2 servers

We have two Windows Server 2008 R2 machines, one in our main office and one in a new office which we have just moved offsite. The main office has previously been handling client-to-server PPTP VPN ...
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97 views

PPTP server/client to client communication fails

I have some problems with my PPTP VPN server on Debian 7 x86. I'm mainly using Windows clients to connect to the VPN and this works. The VPN connection from client to server works, because in the ...
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VPN pptp connection Unable to pass through linux iptables

I have set up a windows VPN server behind Linux - Ubuntu box that is working as firewall and proxy server. Now I want people from outside to be able to connect to the VPN server, but the connection is ...
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420 views

Windows 8.1 VPN stopped working on Windows server 2008 R2

Background: All the Windows 7 pro machines can connect to VPN via PPTP or SSTP on a Windows 2008 R2 VPN server fine. But windows 8.1 Pro can't. It generates 720 on the machine and on the server with ...
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638 views

Pfsense PPTP VPN Error 806

I was previously using another firewall software and simply by port forwarding port 1723 from the ADSL interface to a Windows Server attached to the LAN, we were able to VPN in. Since switching to ...
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430 views

Multiple VPN connections on the same Computer at the same Time with the same Subnets

What's the best approach for such scenario? : One machine „GATEWAY” SERVER with configured multiple VPN connections. PC1, PC2, PC3, PC4 are the clients that with the same time wants to connect to ...
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63 views

enable user to connect to external pptp VPN server

I want to enable local user to connect to remote VPN server I added those rules to the iptables but still not able to connect -A OUTPUT -p gre -j ACCEPT -A OUTPUT -p tcp -m tcp --dport 1723 -j ACCEPT ...
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159 views

Load-balancing PPTP connections

I'm trying to load balance two PPTP connections, connected to the same server. I use the following script, but there is no send and receive via PPTP connections. What part am I doing wrong? Are there ...
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2k views

PPTP defaultroute. Want to route all traffic via ppp interface

I'm experiencing a problem described here: http://pptpclient.sourceforge.net/howto-diagnosis.phtml#lots_of_data. If I use defaultroute in peer conf or manually add route add default dev ppp0 ...
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585 views

Fortigate VPN can't reach site

I've two Fortigate's here and I use one of them for each site. Site A Site B 192.168.2.0/24 <---------- VPN ...
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354 views

RRAS behind Ubiquity EdgeMAX drops PPTP tunnel

I have a Server 2008 R2 machine behind an Ubiquiti EdgeMAX router. The router has been configured as a NAT, and all GRE traffic along with the TCP control port (1723) has been forwarded to the ...
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118 views

Windows XP VPN server with Ubuntu client

I'm trying to setup VPN connection to Windows XP server with a static public IP address from my Ubuntu machine. VPN used is standart windows built-in PPTP. I have got problem when connecting. Here is ...
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190 views

Cisco ASA, Windows Server 08, PPTP/GRE issues

I am at the end of my rope on this one. I am trying to simply forward pptp/gre through a Cisco ASA to my Windows server. Here is what I have done: Access Rules: OUTSIDE ...
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683 views

Windows Server: can't connect to File&Print services through PPTP VPN

We have setup a simple VPN server with PPTP enabled and have forwarded correct PPTP 1723 port and GRE 47 on plain Windows Server 2008(NOT R2). Now when I am trying to connect from any VPN client ie: ...
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92 views

PPTPD on VPS with one ip?

Ok, i've been trying for quite some time to get PPTPD working on my VPS and it's not working. Jun 16 21:08:34 cust-5488-520 pptpd[962]: CTRL: Client 83.127.117.40 control connection started Jun 16 ...
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690 views

PPTP refusing to connect when client is windows

I have a PPTP server running and I can connect to it from linux. When I try from windows 7 (2 instances tested) it fails. Here's the syslog for such a conn: pptpd[540]: CTRL: Client 109.xxx.158.201 ...
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342 views

Unable to setup PPTP VPN on SUSE Enterprise 11

I am new to Linux, however I will try to convey my question the best I can. Right now we are using Windows Server 2003 as a DHCP server. It also has PPTP VPN installed. Users can get to VPN outside ...
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144 views

linux PPTP server custom authentication script

Suppose I have a lot of PPTP VPN servers and I want a good way of authenticating users. Each user must be able to create a maximum of 2 concomitant connections to any given server. With the current ...
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177 views

Cannot resolve domain over VPN

I have setup a VPN server at UK and connected it from my PC. The problem is my PC cannot resolve some domains like twimg.com paypal.com etc. Does these servers denies VPN servers or especially my IP ...
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309 views

Local computers can't discover computers connected via VPN - windows server 2008 r2

I have Server 2008 R2 set up on a local network with RRAS, NAT and VPN enabled. One NIC leads to the internet, with a WAN IP. Second NIC leads to my internal network. The internal network consists of ...
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375 views

CentOS 5 VPN Server won't work

I have a CentOS 5 server configured to be both a L2TP server and a PPTP server + a radius server for hosting the AAA. My problem is that, the L2TP works great and I can connect to it, but can't ...