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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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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11k 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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4k views

How do I configure pfsense as an outbound VPN client?

We use pfsense as a router/firewall. Because we're based in China, it is useful for us to have VPN access for all our internal clients. Instead of each individual client connecting to a VPN server ...
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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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How to setup router on desktop linux to provide access to vpn subnet to other local machines?

I have a desktop linux (Ubuntu based 12.10, laptop, 1 network card) from which I connect to work vpn via standard pptp, so I can access local network and work network from the machine. On the desktop ...
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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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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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923 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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646 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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1answer
1k views

No TCP connections to hosts behind VPN server (SYN, SYN-ACK, but no ACK), UDP, ICMP works

I'm probably doing something incredibly stupid, but I just can't seem to figure out what. Here's what I'm trying to accomplish: I want remote users to be able to log into our network, so I set up a ...
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2answers
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Force Windows to Stay Connected to Microsoft VPN when User is Logged Off

I have a Windows Server 2008 at a remote office location that needs to stay connected to the main office via VPN (standard Windows PPTP connection) even when there is no user logged in. Right now, ...
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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
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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
5k 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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3answers
4k views

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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336 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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1answer
136 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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1answer
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DNS problems when connecting via VPN

So on my home network I run my own domain controller & DNS server. On my client machine (which is a member of this home domain), I connect to my work VPN and from that point my DNS messes up. My ...
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2answers
145 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
287 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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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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180 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. ...
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Can't access dfs namespace over vpn

I've recently configured 2 servers in AD on the same domain level. They are physically separated and permanently connected through a site-to-site vpn for dfs replication. All well, but when users ...
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6answers
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Cisco PIX to Juniper Netscreen Policy-based VPN fails Phase 2 Proposal

I've followed the instructions to configure a VPN between a netscreen device and a Cisco PIX as directed by Cisco's [netscreen to PIX ...
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2answers
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PPTPD with PAM authentication?

I need a VPN solution for my company. One requirement is to be able to use the built-in windows VPN client. We are running a Debian Etch server. I've managed to set up PPTPD but the authentication is ...
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1answer
7k views

Cisco ASA 5505 - L2TP over IPsec

I have followed this document on cisco site to set up the L2TP over IPsec connection. When I try to establish a VPN to ASA 5505 from my Windows XP, after I click on "connect" button, the "Connecting ...
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363 views

Android to openswan/xl2tpd/pppd error: result_code_avp: avp is incorrect size. 8 < 10

I am trying to use a simple Android 4.4.4 VPN connection to openswan/xl2tpd/pppd combo. the IPSec SA works, but xl2tpd at one point terminates the pppd and this shows up in logs: xl2tpd[17990]: ...
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strongSwan 4.5.2 with iOS and Mavericks, Connection Troubles

I am having trouble configuring strongSwan 4.5.2 to work with iOS 7 and OS X Mavericks. I have followed these two guides, but am still encountering problems. ...
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255 views

Windows server 2012 ignores static routing

BIG UPDATE: I was blind I see now that route 172.17.50.1 has netmask 255.255.255.255 and so it point to single host! But now I cannot understand how can I ping 172.17.50.10 because there is not route ...
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How to tunnel all Internet traffic via SoftEther?

My intention is to route all Internet traffic via a remote machine behind multiple NATs. The ISP's NAT servers are not under my control. I do control my own NAT server, which is a local router. Both ...
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1answer
335 views

Connect to a machine in a vpn via ssh with dynamic dns

I have set up my router on my local network to use dynamic dns (no-ip) to get a "static" hostname. I have forwarded port 22 to my local pc and I can remotely log into it using ssh. I also need the ...
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Cisco ASA ipsec vs Anyconnect client issue

So I have an iPad that has a IPSec VPN created. I am able to connect from the outside fine and I can access my local LAN files just fine. When I connect with the Cisco AnyConnect client from the same ...
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469 views

Hub-and-Spoke VPN using Window Server 2008 R2 and RRAS

I am trying to create a simple VPN hub-and-spoke topography. I have managed to get quite a long way and I hope the following diagram describes what I have been able to build thus far: As you can ...
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201 views

Overlapping subnets - VPN

I have Site to Site VPN on Debian box which is setup by rackoon. It works fine, however because subnetworks overlap NAT is used on both ends of the VPN (1.1.1.1/32 & 2.2.2.2/32) On both subnets I ...
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436 views

UDP Packet Size.. max, ping failing to 3G.. Recalcitrant software vendor

We have a network of 330 clients (Service Vans) connected via 3G to our central office. Currently these clients are connected via a small ruggedized 3G router that establishes the 3G connection and ...
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1answer
614 views

how can I give openvpn clients access to a dns server (bind9) that is located on the same machine as the openvpn server

I currently have a debian server that is running an openvpn server. I also have a dns server (bind9) that I would like give allow access to by the connected openvpn clients, but I am unsure as of how ...
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772 views

How do I configure OpenSwan to allow pure IPsec (not L2TP) connections from an iPhone?

Similar to this question, I want to configure an IPsec server on Linux which will accept connections from the iPhone. However, unlike the other question, I want to be able to test with pre-shared keys ...
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1answer
553 views

VPN to a customer's site locking out my local AD account

We have an account lockout policy on our domain which was put in place purely to stop brute force attacks. It locks out an account for 10 minutes after 50 bad logon attempts within a 10 minute period. ...
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1answer
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OpenVPN and TomatoVPN

Wondering if someone can help me with the following. I have updated my Linksys router with TomatoVPN and used the following config: Interface Type:TAP Protocol:UDP Port:1195 Firewall Custom ...
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5answers
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SQL Server 2008 R2 transactional replication over VPN

I'm having difficulty setting up replication over a VPN. I have a SQL Server 2008 R2, Enterprise Edition database on a Windows 2008 R2 Server. SQL Server is running on a non-standard port. I have ...
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Windows Server 2008 R2 RAS VPN: access server on internal interface ip

short question: I'm usually a linux admin but need to setup a Win2k8 R2 server for a student project. The server is running as VM on a root server and has a public internet IP assigned. Additionally I ...
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Microsoft SSTP VPN returning HTTP 503

So I have finally set up my certificates correctly and such, so I'm trying to connect to my VPN. The Windows client is giving me an error with the code "0x800704D4". I looked into it and was told to ...
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1answer
980 views

Windows 2008 R2 VPN Service — Clients Disconnected

I have set up a MS VPN server on Microsoft 2008 R2 Server. There seems to be a problem where some clients get disconnected after just a few seconds. They can access machines in the VPN network with ...
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639 views

Trying to get a new user up on pfSense IPSec VPN; Config file import failed, now getting gateway errors

Caveat: I am not a sysadmin, so please forgive the n00bness of the query. We have a new user and I'm trying to get them up on VPN. We use pfsense as an IPSEC endpoint. This person is using Shrewsoft ...
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2answers
2k views

Using Ubuntu Karmic as an L2TP Client for VPN

I'm trying to connect to a VPN service over L2TP using Karmic as a client and it's not working. The only details I have are the remote IP address, username & password, and a shared secret string; ...
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Site-to-site VPN using MD5 instead of SHA and getting regular disconnection

We are experiencing some strange behavior with a site-to-site IPsec VPN that goes down about every week for 30 minutes (Iam told 30 minutes exactly). I don't have access to the logs, so it's ...