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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Connecting to OpenVPN though a PPTP VPN on Yosemite [migrated]

I have just updated to Mac OS X Yosemite and the problem is that I cannot connect to OpenVPN or Kerio connection behind a PPTP connection. Mavericks OS X does not have a problem. I can also connect to ...
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64 views

We are able to connect successfully to PPTP VPN (Standard Windows VPN) but once connected, ping through hostnames will not resolve to their IPs

We are able to connect successfully to PPTP VPN (Standard Windows VPN) but once connected, ping through hostnames will not resolve to their IPs. For internal, this is working perfectly. This is only ...
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13 views

VPN issues switching between OS-X and Windows clients

There's a Windows PPTP VPN server setup for work, and I was connecting to it with various Windows clients (Windows 7 VMs and physical machines) with no issues, and things were working just fine. Then ...
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18 views

Poptop configured for freeradius but still authenticates through chap

I'm running Centos 6 64 bit with Poptop and radiusclient. When I connect to my poptop server this error comes up in the error log: Feb 21 14:40:42 alpha pptpd[13225]: CTRL: Client **** control ...
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66 views

Traffic between vpn clients

Basically I need to connect several computers (A, B, C, D) located in internet to a virtual local network. All of these computers can't accept incoming connections from internet. But they need to ...
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1answer
39 views

Windows Server as a PPTP Gateway

I have a Windows Server 2012 server at work, which is currently used as a domain controller, and an internet gateway. The current internet connection uses a USB dongle, which appears like a standard ...
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12 views

I want to close automatically within a minute of the PPTP connection

I PPTP server on Ubuntu 12.04.5 server is running. I want to close automatically within a minute of the PPTP connection from an external center. I appreciate if you can help.
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39 views

Tunneling a PPTP VPN connection through a L2TP VPN connection

My company recently moved to a serviced office space : they provide the desks, power and internet. My company has a VPN to connect to the main head quarters that uses PPTP to connect. In the new ...
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26 views

ubuntu xl2tp ppp0 not properly handling the DF flag (Packet Corrupt) while sending packages > defined MTU

While trying to setup an Ubuntu Linux server as a client to an l2tp/IPSEC server, I notice inconsistencies while trying to send data. The tunnel/VPN establish the connection / handshake properly and ...
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1answer
52 views

Load Balancing VPN servers (Ubuntu)

I am trying to load balance two VPN servers, that are located quite far from one another. I am using Ubuntu with pptpd, is there anyway to load balance those two servers? So user connects pptp to ...
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64 views

Members of my PPTP VPN can't see each others

In relation to the answer of this post: pptp on Ubuntu server can't ping other machines on the LAN Is it possible to have the members connected to the VPN see each others if they don't use the ...
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1answer
47 views

When tunnelling through a VPN, block or redirect certain domains [closed]

I'd like to block or redirect certain domains for anyone using my VPN tunnel (pptp). I thought simply editing the hosts file would achieve this, but I guess not. Is there another way? The VPN is set ...
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1answer
173 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 ...
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1answer
61 views

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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1answer
452 views

SSH over VPN connection

We have an AWS EC2 server that we've configured to be only accessible (via SSH) from within our office network. Obviously this isn't ideal for remote arrangements where someone has to connect to the ...
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318 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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101 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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1answer
139 views

Network system tray icon and control panel slowly becoming unresponsive in Windows 7 [closed]

I have to manage hundreds of VOIP PBXes, which I connect to via the Windows 7 PPTP VPN client. I've noticed that over time as I add more and more PPTP connections, the network system tray, as well as ...
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61 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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1answer
86 views

server 2012 vpn not passing traffic

Having some major problems with Server 2012 Essentials. Have setup remote access and installed RRAS console. I can connect to the VPN through SSTP or PPTP no problems. Authentication is fine (NAP is ...
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1answer
273 views

Cant see Shared Macs over PPTP VPN (OS X)

I have setup a PPTP VPN using a DD-WRT router which is functioning fine. I can ping internet to external and external to internal. I have also tested file sharing over AFP and SMB with success. My ...
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109 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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78 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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1answer
115 views

How do I write a SRV record for PPTP? [closed]

Hosting a PPTP VPN server on a subdomain, how do I enable the service on the domain with a SRV DNS record? I've already tried: _pptp._tcp.domain.top. 86400 IN SRV 10 10 1723 sub.domain.top. though ...
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131 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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2answers
3k views

pfsense PPTP VPN can access LAN but not internet

I am running pfsense at home and I want to set up a PPTP vpn (yes I know its not secure, lets ignore that) My current pfsense setup: LAN: 192.168.1.1 (/24) WAN PPPoE (real world IP lets say ...
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1answer
259 views

PPTPD not working on virtual machine running Kali Linux

I need to capture non-http traffic from my iPhone. Using a proxy will only capture port :80 and :443 traffic which will not work for me as the traffic I am trying to capture is not from either of ...
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1answer
45 views

Routing of pptp clients

I have just configured a PPTP VPN server in an AWS VPC subnet. However, I am unable to ping through to other hosts in the same subnet (as the VPN server). I am not sure whether I am overlooking a ...
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149 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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166 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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1k views

Setting up PPTP VPN server, cannot access remote hosts

I'm attempting to set up a VPN server on an industrial ProRoute M2M 4G router. My goal is for a client to be able to log in on the VPN and be able to "locally" hosts that are on the router's LAN. My ...
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122 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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1answer
12k 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 ...
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75 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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1answer
409 views

PPTP and windows 7 809 error [closed]

I want to connect from home to my router(linux mashine) at work. i have installed pptpd. i have added following fw rules: iptables -I INPUT -p tcp --dport -j ACCEPT iptables -I INPUT -p gre -j ...
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1answer
130 views

Is there a logical reason why Amazon EC2 won't allow me to specify a port when using GRE?

I want to set up PPTP in EC2 and am configuring a security group. I've already selected the "custom protocol" and am using protocol 47 / GRE. When I select this, the port section is read only. Is ...
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986 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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117 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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1k views

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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1answer
237 views

Set up multiple VPN's with a static ip with PPTP with only 1 vpn-login

I have a VPS with Ubuntu 12.04 x64 and i need to connect 118 VPN's to interfaces with (pon vpnname). I've made a script that creates them all, the problem is that no interface will have a unique local ...
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544 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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766 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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308 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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161 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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1answer
199 views

Network remapping with iptables and PPTP VPN

I have two different networks: Home network 192.168.1.0/24 A - Home PC (192.168.1.100) B - Home Router (192.168.1.1 lan ip - x.x.x.x public ip) Office network 192.168.1.0/24 C - File Server ...
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1answer
434 views

Cannot connect VPN Server On Ubuntu Server 12.04 Using PPTP

I am trying to replace the old gateway server (running Fedora core 5) in my lab with a new one (running Ubuntu server 12.04). Three basic functions need to install: NAT, DHCP and VPN. And I got stuck ...
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1answer
1k 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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1answer
292 views

Accessing Server Remotely Without Forwarding Ports?

I'm setting up a Debian web server in my school that people need to be able to access outside of the school (i.e. website needs to be accessible from outside the local network). The problem is, they ...
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1answer
113 views

Incorrect IP for PPTP client on Rackspace VM

I'm using pptp-linux to connect to a (Windows) VPN. I can connect and authenticate just fine, however I can't ping any hosts on the remote LAN other than the VPN server. I think this is because my VM ...
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476 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 ...