VPN is the acronym for Virtual Private Network - a network type that uses a the Internet to provide remote networks or single machines with secure access to their organization's network avoiding expensive leased lines.

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Simple VPN for iPhone using Windows Server 2008

I have a Windows 2008 server running in country A and I am in country B with an iPhone. Country B censors the internet. Obviously this is not acceptable, I want to make VoIP/Skype calls and access ...
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Setting up RADIUS Server for use by a VPN device

Currently we have a Vigor 3300 router that acts as our VPN server. At the moment we set up connections for home workers manually in the device. What I would like to do is remove this extra step and ...
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1answer
66 views

Error with a vpn client (PPTP protocole) over ssh

I have some errors when I use PPTP over ssh : sudo ssh -L 1723:127.0.0.1:1723 vpn-server@$192.168.1.1 192.168.1.1 is the vpn server ip. When I start pppd (client) whith the following command : ...
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How to add vpn subnet to a private local subnet (both in different subnet address)?

I set up a xl2tpd vpn server on a router, and assigned the ip range from 192.168.191.2 to 192.168.191.244, and there's local network behind the router's lan side with a 192.168.1.0/24 ip range, so I ...
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1answer
777 views

Nmap ping scan over a VPN tunnel return all hosts alive?

I'm curious as to why running an nmap -sP (ping scan) on a remote subnet linked via a Cisco site-to-site IPSec tunnel returns "host up" status for every IP in the range. [root@xt ~]# nmap -sP ...
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1answer
1k views

PIX 506E, MTU, VPN Packet Fragmentation and Shoretel IP telephone system

We have two sites, a large Southern site and a small Northern site, that have a VPN between them defined on two Cisco PIX Firewalls. Over this VPN Shoretel IP phone traffic travels as well as all ...
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1answer
133 views

terminate ipsec transport at firewall?

I am exploring using ipsec transport mode to provide secure ipv6 access between 2 LANs and several remote users. I love the combo of a flat ipv6 global unicast address space combined with ipv6 ...
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1answer
967 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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1answer
2k views

SSH VPN tunnel without having to enable root

ive been trying to setup a VPN SSH tunnel and ive had success executing ssh -Nv -w 0:0 root@192.168.2.2 -p 50 however what i am wondering is, can i do the tunneling without having root unlocked ...
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1answer
253 views

Forward specific network traffic to other server

Is it possible to redirect incoming traffic on a specific port of my Ubuntu Linux server machine to another server (that has another public IP address and is located at another site)? I'm running a ...
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StrongSwan ipsec ubuntu “ignoring informational payload, type NO_PROPOSAL_CHOSEN”

I have StrongSwan running on a ubuntu server and I'm trying to create an ipsec encrypted VPN tunnel with a Cisco 2821 router . The connection is not working and I cannot figure out why. It appears ...
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339 views

Passing client MAC addresses to DHCP server over VPN

I'm tasked with implementing VPN access on a gateway. The LAN DHCP server is configured to assign the same IP address to a given MAC address. I would like to have this functionality for clients who ...
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1answer
747 views

Do not use VPN credentials to connect to network resources?

I recently deployed a new remote access VPN system at my company, using a Cisco ASA 5510 as the concentrator. The protocol is L2TP-over-IPsec for maximum compatibility across clients, and ...
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1answer
520 views

Site to site VPN : how does the routing work?

I've established a site to site VPN with two Zyxell routers. Site A (LAN: 192.168.16.x) is the main office, and site B (LAN: 192.168.17.x) is a branch office. Both sites are able to reach each other, ...
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OpenVPN redirect-gateway does not work on Windows 7?

i have set up openvpn, and it works. pinging from client to server and backwards works just fine. but now i wanted to redirect all the clients traffic through the vpn. so i did the following steps as ...
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1answer
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site-to-site VPN between cisco ASA and 870 cannot ping remote network

I have two sites which are connected through site-to-site vpn from cisco. One site has a cisco ASA router, the other has a cisco 870 router The tunnel has been setup, and active, however I cannot ...
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1answer
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VPN connection between Endian firewall and Android phones

We have an endian firewall (community, 2.4.0) as gateway, which is already serving as OpenVPN and IPSec endpoint (net-to-net). And we have many Android phones (most of them running Android 2.2 FroYo). ...
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Mac OS X PPTP VPN issue ping: sendto: No buffer space available

The VPN connects successfully but after some time the connection is unusable (VPN is used as primary gateway). Ping would reveal: ping: sendto: No buffer space available This looks like the same ...
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IPSec tunnel between FortiGate and iPhone / iOS - Works except for DNS / Wins

I have configured my Fortigate with a new VPN IPSec tunnel to allow the iOS Cisco client to connect. That works fine. I can RDP to my servers, browse to my servers via IP address, etc. But, the ...
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2answers
799 views

Replacement/upgrade for RV082 wired router with VPN access

Current Configuration We have two sites that are connected via a gateway-to-gateway VPN tunnel using Cisco RV082 routers. We also have VPN access using QuickVPN for our Windows employees and PPTP for ...
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IPSec Tunnel to Amazon EC2 - Netkey, NAT, and routing issue

I'm working on getting an IPSec VPN working between Amazon EC2 and my on-premise. The goal is to be able to safely administer stuff, up/download data, etc. over that tunnel. I have gotten the tunnel ...
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1answer
6k views

Multiple Set Peer for VPN Failover

I will have two Cisco routers at Location A serving the same internal networks, and one router in location B. Currently, I have one router in each location with a IPSec site-to-site tunnel connecting ...
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1answer
688 views

How can I create a VPN connect/disconnect wrapper around SVN commands?

My company has an internal SVN server (VisualSVN) we would like to start using for keeping track of changes to our python source code in the cloud. The ec2 instances would use the linux SVN client. I ...
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1answer
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Site-to-Site Tunnel between Cisco Router and Windows Server 2003/2008

Has anybody successfully created an IPSec site-to-site tunnel between a Windows Server 2003 or 2008 and a Cisco router? We tried the steps outlined at: ...
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Linux IPSec issue. (CentOs 5.3, manual keying)

I'm creating an IPSec tunnel from a Linux box to a SonicWall firewall running standard firmware. The tunnel seems to be getting created just fine, but packets from the Linux box to the remote network ...
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1answer
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Connecting to TFS over VPN

At work I can connect to the Team Foundation Server (TFS) from Visual Studio and do all the source control etc. that I need to. However, when working from home and connected to work via VPN I cannot ...
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1answer
303 views

Troubleshoot Broken TCP From OpenVPN Client To Server; But ping, traceroute Work

I'm troubleshooting an OpenVPN Server setup on OS X Mavericks. Prior to the 10.9 upgrade, this all worked, and I'm trying to isolate the problem to something fundamental or my server/client setup. ...
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1answer
1k views

OPENVPN route all traffic - Synology

I have a synology NAS that is my OPENVPN server. I am always on the road and I want to route all of my traffic through my house. Here is my config and my log. config file dev tun tls-client ...
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1answer
936 views

Configuring VPN on Windows Server 2008 with no DHCP

Please see the revised section at the bottom as the original question seems to have been a little convoluted I have a cloud based virtual machine from my client's hosting company. The sole ...
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1answer
535 views

Site to site VPN between Cisco VPN Router and Sonicwall NAT issues

I'm trying to establish a site-to-site VPN connection from office to datacenter. Cisco RV042G and SonicWall NSA2400 In the office; we have the subnet 10.0.0.0/24 defined and hosts from 10.0.0.150 to ...
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pfsense 2.0.2 racoon(ipsec vpn) unreliable

I'm having issues with racoon (ipsec VPN) on pFSense 2.0.2 (and 2.0.1). According to racoon all my tunnels are up (I have about 130 of them), but over time more and more of them won't pass traffic ...
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How can Bonjour be setup to function over a VPN connection using Mac OS X — Mountain Lion Server?

I purchased Mountain Lion Server for our office thinking that Bonjour would automatically enable any computers connected via VPN to see all computers and applications (such as Bento) running on the ...
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1answer
657 views

Set source address to use tun device does not work (Debian Squeeze)

There have been similar questions on StackExchange but none of the answers helped me, so I'll try a question of my own. I have a VPN connection via OpenVPN. By default, all traffic is redirected ...
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1answer
492 views

selective routing through a VPN tunnel

The problem: after establishing an IPsec VPN tunnel all traffic is routed to the remote endpoint, while I only need to route the packets destined to that internal network and still be able to access ...
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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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3answers
996 views

VPN or RemoteDesktop?

I need to keep an eye on our small company server while I'm away. I Have Windows2008 server with a spare NIC and went through all the steps to setup a WIndows VPN. But before I set the port forward ...
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1answer
4k views

Watchguard L2TP over IPsec passthrough

I'm attempting to connect to a VPN (L2TP over IPsec) server through (not to) a WatchGuard XTM 505 appliance. I have the VPN server setup behind the firewall on a 1-to-1 NAT, and other protocols (such ...
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IP Phone over VPN - one way calls unless default route?

I have come across a strange problem with our VPN and BCM 50 (Nortel/Avaya) phone system. As you can tell by my other questions I have been doing some work on setting a VPN up from one location to ...
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1answer
291 views

Monitor Network Performance of VPN Servers from different locations

Our company has 3 VPN Servers in US. We want to monitor network performance ( the most important factor is how fast users from different locations in the world can download data when using our servers ...
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4answers
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Using VLANs at 2 locations across VPN?

Forgive me if this question is horribly misguided. I'm primarily a developer, but my company has asked me to work on setting up their network for data and voip connections in a sensible way (I do have ...
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3answers
3k views

What might prevent IKE handshake success in building an IPSEC tunnel?

We use Cisco ASA for our IPSEC VPNs, using the EZVPN method. From time to time we encounter problems where an ISP has made a change to their network and our VPN stops working. Nine times out of ten ...
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1answer
131 views

How do I configure my VPNs on my new firewall without taking out the old one?

I have a colocation facility with my main firewall in it. It has a bunch of site-to-site VPN tunnels built from the main firewall to the firewalls that are in the remote facilities. I want to ...
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2answers
139 views

VPN Router question

What does it take to set up a wireless router to connect to a vpn service so everybody in the local wireless network surfs the internet through that vpn tunnel? What do I need to be careful about? ...
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1answer
271 views

Limit VPN login to members of a group

I'm running Cisco ASA5520's with PIXOS 8.2(1). I have my vpn setup to authenticate users from my ldap server. I need to be able to limit them to a specific group. My login base dn is ...
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How to route traffic from a VirtualBox VM only over a VPN?

I've got a VirtualBox VM (both host & guest Ubuntu Maverick). My VPN provider uses OpenVPN to setup TUNs. I'd like to set things up so that traffic from the VM only goes over the VPN and is just ...
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Is it true that hosts doesn't work in VPN?

C:\WINDOWS\system32\drivers\etc\hosts Seems it's no longer working after I switch on the VPN. Is it the case ,or just my own mistake?
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PPTP Clients Connect But Do Not Have Network Access

I have clients that connect to a Window Server 2008 R2 box via PPTP. They are able to successfully negotiate a connection and receive a local IP address, but are unable to access any internal network ...
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1answer
2k views

How to route all traffic over site to site VPN tunnel?

I have a site to site VPN configured between our main site (Site A) and a remote site (Site B). Site A is 10.60.0.0/16 Site B is 192.168.99.0/24 The firewall in Site B is a Juniper SSG running ...
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1answer
178 views

VPN with one nic

i want to use VPN and i follow this tutorial. http://www.onecomputerguy.com/networking/w3k_vpn_server.htm Everything works fine just i can not remote to my computer any more. Internet works but ...
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Configuring OS X L2TP VPN to use Certificate for IPSEC layer instead of Pre Shared Key

I'm trying to setup a L2TP VPN on an OS X Snow Leopard Server setup, and have had success using a pre-shared key, however I would rather not rely on a simple string, and use a certificate instead. ...