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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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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218 views

Have some questions about setting up a VPN to my private cloud servers

TLDR: I wish to VPN to our cloud servers. Is there any free VPN server software that runs on W2K8? No, I don't want to : Download 3rd party software for the -clients- (We want to use the built in ...
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596 views

Allow VPN to external site through ISA 2006 firewall

I'v followed the instrutions from here, but still it doesn't connect. (while the VPN setup does work when I try via my home network) http://support.microsoft.com/?scid=kb;en-us;838245 When I try ...
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Can the ASA 5505 use pptp as the VPN type? If so does anyone have a link to a config example?

I'm migrating from a PIX to a ASA and the PIX has the remote users PPTP to it. This is not pass though but the VPN type of the PIX. Does the ASA even support this? I have been trying to search around ...
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1answer
4k views

Windows VPN - NO internet access

I host a network of servers behind a Fortigate 200a firewall in the DC. I connect to those servers via a VPN connection. The problem is that when i connect to the VPN, I lose my internet connection ...
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998 views

How do I make servers visible on my VPN?

I'm tinkering with web servers on Rackspace, trying to figure out if I can set up a website with public parts and also private parts that are visible only via a VPN connection. I have 2 servers ...
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439 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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3answers
544 views

How can I ensure home VPN users don't save connection password?

We are using a PPTP VPN, on Windows RAS/Server 2003. We have users verify anti-virus patching, and then after verification grant access to the VPN. We don't use a CMAK applet, we just provide users ...
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896 views

Configure IPTables to block specific ports on VPN Disconnect?

I am using the latest Ubuntu distribution... and I have a rather spotty VPN connection. I am using the default Network Manager application that came with Ubuntu. I am having trouble maintaining a ...
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1answer
102 views

Replacing modem with a vpn router

Can I replace an open network iconnect 624 modem with a cisco router in a small network that needs multiple PPTP VPN connection? iconnect 624 modem doesnt allow multple simultaneous PPTP VPN channels? ...
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466 views

DELL DRAC & Ubuntu VPN Connection

I am trying to connect to a DELL DRAC card without success by Ubuntu VPN Connection Manager. I have these data: Protocol: PPTP SERVER IP PPTP: 1233.123.123.123 DRAC IP: 192.168.10.25 Subnet: ...
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601 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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513 views

What is the bottleneck in VPN connection?

I have a LAN behind a Linksys RV016 Router. It is connected to the internet with DSL line with asymetric parameters 2Mbit download / 512 kbit upload. In this LAN I have MS SQL server, and i want to ...
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1answer
1k views

PPTP VPN Server issue : server = centOS & client = windows 7

I have a CentOS server configured as a PPTP VPN Server. The client is a Windows 7 with "Use default gateway on remote network" in advanced TCP/IPv4 properties enable. He can connect to CentOS without ...
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1answer
8k views

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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456 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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2answers
853 views

Fedora 15: em1 recently dissapeared and hostapd no longer serves internet to wirelessly connected devices

I have a laptop running hostapd, phpd, and mysql. This laptop uses an Ethernet connection to connect to the internet and acts as a wireless access point for my workplace's wifi devices. After ...
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1answer
7k views

What ports need to be open for PPTP VPN server?

I'm running a PPTP VPN server on my DD-WRT enabled router, and it works inside the network but obviously not outside because I haven't opened and ports. What ports need to be open for the VPN server ...
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2k views

PPTP VPN - users cannot access internet via the server (Failing before DNS)

I apologize to be opening another question with such a similar title, but PPTP VPN - users cannot access internet via the server does not quite cover the issue I'm encountering. I have a VPN Server ...
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How do I get internal hosts to use a VPN connection set up on a FreeBSD router?

Question in short: How do I get traffic from a host on an internal network, using NAT behind a router, to use a VPN connection set up on the router? I have a FreeBSD 9 router with 4 network ...
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1answer
1k views

Iptables: Selective PPTP VPN routing

I've been able to set up TomatoUSB firmware with Ipredator via PPTP, the configuration is as follows: However, I don't want to use Ipredator PPTP VPN for every machine on my network, how to only ...
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219 views

Strange PPTP Issue

I have a Windows PPTP VPN Tunnell that I connect to. This terminates on a Win2k8 Server. I authenciate fine to the VPN. I can RDP to my admin workstation fine and from this I can RDP to all of the ...
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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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363 views

Unable to Connect to PPTP server Debian Linux

I just set up a pptp server on Debian Linux and I can connect to the server from my iPhone when in the same network as the PPTP server. But when I leave my office network, I can't connect to the vpn. ...
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779 views

changeing pptp client default port

I have a pptpd server running on debian. It does not use the default port of 1723 (for some reason), and some pptp client on ubuntu and suse linux. How can I connect to my pptp server?
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change default PPTP TCP port

Is there a way to make pptpd listen for PPTP trafic on a TCP port other than the default 1723 port? I khow that PPTP uses more then just tcp/1723. It also uses GRE. it's not a problem. just how to ...
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1k views

Is there any way to set PPTP on UDP Protocol? [closed]

In our network,many web site has been filtered ,so we should use VPN or Socks ,They reduce any tcp connection speed by dropping random packet (Than post and get on http),So ssh,pptp and ... are so ...
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2answers
7k views

Windows remote access server (PPTP) advertised routes

How does a routing and remote access server pick up routes to advertise to clients, and where can a list of routes being provided be reviewed? One of our users is reporting that the server is ...
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2answers
130 views

Replace Cisco 2600 PTP T1

Our office and an outside location have a dedicated T1 point to point connected with Cisco2600's. We need to eliminate the need of the T1 circuit as it is costly and would like to route the traffic ...
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1answer
181 views

Is it possible to create virual hub for PPTP clients?

There is a Linux machine (A) running pptpd inside a university network behind a firewall but with real IP. I have no access or any knowledge of IP distribution in this network, so I can't just set ...
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1answer
274 views

RRAS VPN Set-Up — Need Insight From Windows Server 2008 Admin

I am hoping that I don't get too many thumbs down for this, I am hoping that someone can point me in the right direction on a project that I am now regretting picking up. I am a Linux Admin by ...
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1answer
558 views

Route Server 08 R2 VPN (PPTP) traffic to two subnets (public & private)

I recently transitioned our VPN server from a Windows Server '03 box to '08 R2, both using built-in Routing and Remote Access for PPTP connections. Our firewall has a rule that forwards traffic from a ...
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1answer
1k views

VPN IP Routing - slow connections

UPDATE: Router error logs show: LCP Time-out 0 I'm not sure how to correct this. The Lan-to-Lan profiles are set to -1 Idle Timeout (for the remote branch). I have a PPTP VPN running between two ...
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186 views

Do I really need RRAS for serving a PPTP connection?

Setting up PPTP has been a pain so far in Windows Server 2003. I've already tried creating a new network connection, which creates some kind of network adapter for "Incoming connections", which ...
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2answers
389 views

ProCurve 1800 switch issue

I recently deployed ProCurve 1800-24G switches in place of some older ProCurve 2424M switches in my network. However, I'm having a serious problem with the switch connected to the router. It seems, ...
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1answer
227 views

Connect to server via VPN-tunnel to same server

Sorry, if title is unclear, here is the setup: There is machine A, running Linux. A is part of university network and has single network interface with real IP. But connections from outside of campus ...
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2answers
3k views

PPTP connection fails during handshake

A user located on the other side of the planet has troubles connecting to our PPTP VPN. The VPN is a regular windows server 2003 VPN and works fine for most users from the US, but for this specific ...
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1answer
1k views

Ubuntu: pptp client & route all

My purpose is to route all traffic through a pptp connection from a linux machine. (Windows does this automatically after connecting to a pptp server). The command pptpsetup --create TUNNEL --server ...
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331 views

how to choose secure PPTP password?

I'm running a PPTP server on a ubuntu VPS, which has around 20 users . currently we use passwords like this "bi9_Knh78A#" . is this considered safe ? What's the best method to choose passwords ? How ...
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355 views

AWS-hosted sites unreachable from my EC2-based VPN

So I setup a simple PPTP VPN on my EC2 Ubuntu instance. However, when I'm connected to that VPN from my laptop, I'm unable to access any AWS-hosted sites/services (times out). Everything else works. ...
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2answers
4k views

PFSense 2.0 RC 3 - Routing problem with PPTP VPN

I have configured a PPTP VPN on my PFSense 2.0 RC3 router. The internet traffic comes to my modem (10.0.0.0/24) and then through my router (192.168.100.0/24). My PPTP subnet is 192.168.101.0/24. ...
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2answers
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How Does VPN Passthrough Actually Work?

I am interested in PPTP passthrough here not Ipsec etc. I have looked on the net but can't find out how it is done. I am an IT administrator myself and know a lot routing, NAT etc. I think I know how ...
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1answer
936 views

PPTP works on Debian 6.0 but not Debian 5.0 or CentOS?

I installed PPTP successfully on a Debian 6.0 64-bit machine, and tried to mimic the installation on both a Debian 5.0 machine, and a CentOS machine. However, I get error codes on connecting with both ...
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3answers
5k views

Is a PPTP VPN too insecure to consider using?

I need to set up a VPN for our small office. There will only be one person using it, and they will be transmitting private financial information in many cases. I know that PPTP has a number of ...
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4answers
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Is it possible to force PPTP VPN tunnel as the only internet connection on a windows 7 machine?

I use a PPTP VPN tunnel to connect to the internet. I want the connection to cut off if there is a problem with the VPN and it drops/disconnects so there is no way to access the Internet without a ...
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Cisco 877 VPN: PPTP encryption not working

A followup to this question. I have a Cisco 877 ADSL router configured (at last!) to act as a VPN server; it supports both PPTP and L2TP VPNs, and I can successfully connect to it from Windows ...
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1k views

PPTP traffic logging

I am running pptpd on a Centos 5 machine but I didnt set up any logging. In case of an abuse, I need to determine which of my users did the bad things, meaning I need to log all the traffic. I may ...
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1answer
4k views

PPTP VPN iptables firewall issues csf [closed]

I am having a problem with iptables and a PPTP VPN, I have read related topics both on hear and online but still can't get it to work! I am trying to set up PPTP on an ubuntu server on our local ...
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1answer
11k views

PPTP VPN Problem

I am using Debian OS with pptpd. My clients (both Windows and Mac) cannot complete the connection. The following shows in syslog: Jun 2 12:52:37 vpn pptpd[891]: MGR: Maximum of 6 connections ...
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311 views

Can I assign a different DNS for 192.168.*.*?

I'm trying to connect to my company's network via PPTP VPN from Mac OS X. I had a problem which turned out to be wrong netmask configuration which prevented 192.168.10.16 and 17 DNS servers from ...