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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How to send ICMP traffic through different tunnels and override local routing table?

I have a latency sensitive application that needs to stay as close to a particular IP, say 192.168.123.123 as possible. That IP keeps switching on between a set of locations. I have figured out ...
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26 views

ssh from Server to Client through PPTP tunnel

I was able to set up a small PPTP VPN with a Server and two clients. All machines run Ubuntu 14.04. The connection works great and is reliable. I can ping all machines from everywhere. Also HTTP ...
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PPTP VPN Connection can establish Tunnel but can't ping LAN IP of Server [closed]

Using Microsoft's built in VPN software: route print from the Client's computer while connected. The 75.xxx.x.x is the WAN ip of the server. 192.168.0.x is the LAN of the server 192.168.1.x is the ...
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10 views

Fail in pptp conexion

Hy! I have a pptp client config in linux with this settings: $> cat /etc/ppp/peers/vpnconnection1 pty "pptp <ip_conect> --nolaunchpppd" name name_conect remotename PPTPserver ...
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32 views

Multiple instances of Openvpn with different server IP numbers

Is it possible to assign different ip numbers to different openvpn interfaces on server (Like in PPTPD): Server PC i-face-s: tun0: inet 10.8.1.1 peer 10.8.2.1 tun1: inet 10.8.1.2 peer 10.8.2.2 ...
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16 views

Openbsd set connect on PPTP server behind packet filter

I have firewall on OpenBSD use Packet Filter and behind him MS Windows server with PPTP server. I need allow connect this PPTP server from internet. I set in OpenBSD: net.inet.gre.allow=1 ...
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47 views

DDWRT PPTP VPN - Single Network, Single Subnet - Partially Working Config

So I have the following configuration, and it works - sort of: Primary Router - Edge device (UBEE router from provider). This router is the gateway and is assigned 192.168.0.1 This router ...
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20 views

Forwarding Traffic from an PPTP Server to Another Server

I'm facing a problem here. I have 2 servers. Server 1 is a pptp server and server 2 is another without pptp service. I want to forward some of the traffic from server 1 to server 2 through a tunnel ...
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39 views

How to tunnel UDP traffic with pptpd VPN?

I've set up a VPN on a Debian (7.8) server. On a Windows 8 machine, I can set up a VPN connection to the server and it works fine for TCP applications. Everything is going through the VPN. However, ...
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82 views

PPTP VPN did not check the password

I've success installed and PPTP VPN in my Linode by using this script: https://github.com/liaohuqiu/centos-setup/blob/master/install/install_vpn.sh yum install -y ppp wget ...
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25 views

I cannot ping my server on PPTP vpn?

I have made a client server PPTP vpn connection on ubuntu. I can connect but cannot ping or ssh from my client to server or vice versa. IP tables server side #!/bin/bash # Set defaults. iptables -F ...
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26 views

iptables — capture pptp connection attempt packets and place into holding pattern

Problem I have a problem of too many simultaneous connection attempts to a vpn server causing all connections to drop. Staggering connection attempts fixes problem. How can I use iptables to do the ...
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199 views

Can't connect from LAN to PPTP VPN client

Our office has a number of incoming PPTP connections to our TP-Link TL-R600VPN router from a number of Windows Embedded for Point of Service (WEPOS) terminals located in our restaurants. One ...
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26 views

How do I configure VPN Access via PPTP/L2TP in very clear steps over the D-Link DFL firewalls?

I have a D-Link DFL firewall and I managed to configure IPSec to connect from remote office since remote office has VPN router installed that allowed IPSec. Now, I want to connect from anywhere ...
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1answer
73 views

Creating a separate PPTP VPN VLan in network with tagging possible?

I have a gateway to gateway PPTP VPN that I would like to connect to my network and have it on a VLAN where it is shared to a VLAN tagged wireless router. This way I can have two wireless AP's where ...
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57 views

Cant Access Network access Over PPTP VPN

I have a Windows 2008 R2 server, this server is configured for Routing and Remote Access to allow VPN access via PPTP using the windows client. VPN Access worked fine over a couple years then ...
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1answer
497 views

VPN (PPTP) connects successfully but unable to ping some devices in the LAN

My working company has this router (Cisco RV042G Gigabit Dual WAN VPN Router) and it has the IP 192.168.1.1 with subnet mask 255.255.255.0. It has 3 devices directly connected to its LAN ports, an ...
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61 views

How to access resources behind the PPTP VPN Server

I have configured a 2008 R2 machine as the PPTP VPN RRAS Server which I can dial through my desktop and can ping or access resources. The problem is NO other machine behind my PPTP VPN Server is ...
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195 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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57 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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51 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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118 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
83 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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15 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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92 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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88 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
93 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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128 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
82 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
344 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
131 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
3k 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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574 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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208 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
242 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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90 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
188 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
449 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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152 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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95 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
178 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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4k 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
318 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
54 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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1answer
2k 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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2answers
20k 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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168 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
628 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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175 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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1k 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 ...