Tagged Questions

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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410 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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1answer
4k views

pppd “peer refused to authenticate”

I have a working pptpd+pppd server configured which currently has two Windows 7 clients successfully connecting. However, when I try to connect a linux client I'm getting a really weird exchange that ...
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1answer
812 views

PPTPd - configuration error?

an 5 01:09:12 vpn pptpd[1832]: GRE: read(fd=6,buffer=611860,len=8196) from PTY failed: status = -1 error = Input/output error, usually caused by unexpected termination of pppd, check option syntax ...
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1answer
136 views

iptables error on pptp

root@pptp [~]# iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE iptables: Unknown error 18446744073709551615 This is an openVZ box. Is there a way to bypass that? This is the MASQUERADE that is ...
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1answer
361 views

Possible to connect to VPN (pptp) with a host name

I have a few computers that I need to connect to a VPN. Right now, I have to manually check to see what IP address the VPN assigned each computer so that I can SSH into each later. Ideally, it would ...
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365 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 ...
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1answer
613 views

Samba Server on public IP, cannot network browse from pptp client

I have a Samba server running on an OpenVZ VPS with a public IP. I also have a PPTP server running on the same server. I connect to it from a remote Windows PPTP client. I have everything working ...
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2answers
1k views

Unable to PPTP through NAT on Cisco 881

I'm trying to connect to a PPTP server which is sat behind a Cisco 881 NAT router. The server is running Ubuntu Server 12.04 and is running Poptop pptpd as the PPTP daemon listening for connections. ...
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154 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 ...
2
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1answer
742 views

PPTP installation on CentOS 5 not working (Kernel support for PPP?)

I am trying to get PPTP installation up and running on my VPS. I have followed various guides, however, I am unable to connect to the VPN once it’s setup. I checked my VPS’ /var/log/messages and I ...
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2answers
132 views

Can a NAT close out VPN connections?

I have a client running on a VPN behind a NAT. The client becomes inaccessible after a while if it is not "active". The VPN software is PPTP and the OS of the client if Debian. I'm unsure about ...
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1answer
638 views

Split tunnel VPN with pptp-linux

I have a client installed with pptp-linux. I would like for it to be connected to a VPN (for VPN resources) as well as be connected to the internet for normal web browsing. I know this is not as ...
0
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1answer
166 views

PPTP VPN Windows Server 2008 Enterprise [closed]

I have a few questions that I hope that you guys can answer, so here goes. I am running Windows Server 2008 enterprise in my HOME network inside of vmware workstation. I am running this on my home ...
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1answer
2k views

VPN setup on mikrotik router

I have successfully setup a pptp vpn server on a Mikrotik routerboard. I am able to connect to the VPN and can successfully access a certain IP range. This is my setup: ADSL modem/router - mikrotik ...
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3answers
5k views

PFsense VPN all types failing?

I am trying to configure a new PFsense router (64 bit) and am trying to to get the VPN functions working. I have enabled PPTP, L2TP and IPSec. I've added allow all rules to all LAN's, WAN's and each ...
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1answer
319 views

Installing VPN servers that support PPTP, L2TP and openVPN protocols [closed]

Looking for VPN Server that support PPTP, L2TP and OpenVPN Protocols, also these servers must use the same data base so each account created on any of these servers must work across all the other ...
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0answers
44 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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2answers
108 views

Web traffic go through standard internet connection and other traffic through VPN

I am deploying a set of computers to a diverse set of geographical locations. However, I still need to be able to ssh into them to do updates. Once deployed, I would like all the standard internet ...
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3answers
3k views

Setting up a VPN on Windows 2008 R2, should I use PPTP or SSTP?

I'm setting up a VPN test server, on Windows 2008 R2. I seem to remember that PPTP isn't ideal, as on a Cisco firewall you need to allow quite a large range of ports open (with the GRE protocol too?) ...
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0answers
292 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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1answer
6k views

Cannot determine ethernet address for proxy ARP on PPTP

I installed pptp server on a centos 6 64bit server PPTP Server ip : 55.66.77.10 PPTP Local ip : 10.0.0.1 Client1 IP : 10.0.0.60 Centos5 64bit Client2 IP : 10.0.0.61 Centos5 64bit PPTP Server can ...
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2answers
1k views

Accessing guests on virtual network when connected to host via PPTP

I'm setting up a development machine which runs Ubuntu 12.04 and KVM for virtualization. I have a guest running Ubuntu 12.04 which can be accessed from the host via its IP address which is assigned by ...
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0answers
4k views

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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1answer
3k views

PPTP VPN server: two connections from the same IP address, but different devices?

I have two shops and the office. Shops are connected to the internet via same internet provider, but they are in the different parts of the city and use different connections of course. This internet ...
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1answer
295 views

cisco 2911/k9 pptp server limit clients

How to view, how much clients can connect to 2911/k9 by vpdn(pptp) at same time? Which ios is need to enable mppe on 2911/k9?
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2answers
1k views

Connect linux server to VPN server via PPTP

I'm trying to connect a Linux (Ubuntu 10.04 LST) server to a VPN server via the PPTP client to an VPN server. I configured the PPTP client as said in the documentation. The connection is correctly ...
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4answers
5k views

How can I force all internet traffic over a PPTP VPN but still allow local lan access?

I have a server running Linux Mint 12 that I want to keep connected to a PPTP VPN all the time. The VPN server is pretty reliable, but it drops on occasion so I just want to make it so all internet ...
1
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1answer
645 views

Masquerading IP to get internet working on VPN

I set up a pptp VPN server on a debian-squeeze server just fine, I can connect to it from Windows 7, but pinging any external hosts (like google.com) fails. Pinging 10.0.0.1 or 10.0.0.10 works as ...
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0answers
612 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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1answer
211 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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1answer
424 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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1answer
3k views

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
3k 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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1answer
884 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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0answers
394 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 ...
4
votes
3answers
492 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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2answers
733 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
101 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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votes
1answer
442 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: ...
2
votes
0answers
536 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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4answers
402 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 ...
0
votes
1answer
892 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 ...
3
votes
1answer
5k 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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0answers
371 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
756 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 ...
2
votes
1answer
6k 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 ...
1
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1answer
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 ...
3
votes
3answers
2k views

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 ...
0
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1answer
123 views

Connection not being routed through VPN

Let's say I have a server at 12.34.56.78 that provides PPTP among other things. Right now I'm on a network that has most outbound ports blocked, and I'm using my VPN to break through the firewall. My ...
3
votes
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 ...