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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Regarding AD Domain controllers and remote branch offices

We have central HQ building and a lot of small branch offices connecting via VPN and want to implement AD (If you can believe we still haven't). We want everyone to log in using domain accounts and be ...
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33 views

How to set up vpn tunnel (ipsec) connection

I'm working with a client who wants to set up a vpn tunnel between their network and ours. They're in charge of the tunnel and to give us the access they are asking me my public IP and my LAN IP. ...
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65 views

VPN with client-to-client direct connectivity?

When setting up a VPN, clients (say client1 and client2) usually authenticate to a server, and together the three constitute the VPN. When client1 wishes to send a packet to client2, this packet ...
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132 views

Cisco ASA SSL VPN options?

Disclaimer: I am not a network admin so I may be wrong here but I thought asking here would help. I'm a developer mainly on the .net framework as well as helping get a mobile intranet app working. ...
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13 views

Web Application Missing Buttons And Receiving Truncated Data - Why Did App Pool Reset Fix?

Problems: My client just called me to complain of a missing link button on an ASP.NET 4 Web Form. He is viewing the site on their local network. I connected to the site on their network via VPN and ...
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1answer
96 views

OpenVPN tunnel one-way traffic failure between LAN and AWS VPC

We are trying to configure an OpenVPN tunnel that allows devices on our LAN to communicate with servers in an Amazon VPC. We are using the turnkey OpenVPN access server instance on Amazon and have ...
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46 views

Routing all network traffic through a VPN for VOIP purposes

We have recently moved offices and as we are in a rural area there is no broadband, but there is a strong 4G signal. Problem I have is that our VOIP phones are not allowed to pass through the 4G ...
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69 views

Can't use a Box in Amazon VPC subnet to connect to the other side of the site-to-site VPN tunnel which is already up

This is what I have done created VPC 192.168.0.0/16 created subnet 192.168.5.0/24 created internet gateway attached internet gateway to VPC created routing table set destination route 0.0.0.0/0 to ...
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2answers
392 views

VPN Security: unknown users trying to connect PPTP VPN

I've configured a PPTP VPN in a small company which so far is running well. In the VPN logs, they've found several logs of attempted connections from unkwoun users, one attempted connection every ...
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42 views

Routing traffic from LAN over VPN link out to 'net; works from router, not from LAN. What route is missing?

I have 3 machines. 2, routers, are connected over a VPN. The 3rd is a PC on the lan behind one of the routers. internet | | ROUTER S1 external: YYY.56.52.56 ...
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234 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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63 views

Site to Site VPN - Openswan and CISCO A2A

Below is the diagram that the VPN connection between Openswan server and CISCO A2A. http://i.stack.imgur.com/yQBSw.jpg client A and B are remote hosts with static ips. client X and Y are behind the ...
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1answer
245 views

Config OpenVPN on Window Server 2008 R2 for client can connect server's Lan network

I installed openvpn 2.1 on my Windows Server 2008 R2. My server has 2 network adapter. The first adapter connect to internet. (default gateway here) The second adapter connect to lan network. ip ...
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0answers
115 views

WINDOWS 8.1 VPN PPTP Network Folders not shown

I recently was able to set up a Windows machine to be used as a VPN Server using windows vpn. I port forwarded 1723 from the modem to the router. The modem has a static ip going towards the internet. ...
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1answer
908 views

ipsec verify on ubuntu Two or more interfaces found, checking IP forwarding [FAILED]

Ubuntu 14.04, Openswan U2.6.38/K3.13.0-30-generic When I run ipsec verify I get this error. Two or more interfaces found, checking IP forwarding [FAILED] I see quite a few of this same ...
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1answer
54 views

OpenVPN connection breaks after a few seconds

For the last hours I have been trying to connect to a VPN network through openVPN. My connection settings are: IPv4 tab: Method: Automatic VPN Routes: Use this connection only for resources on its ...
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57 views

Pptp Vpn: buffering packet .. (expecting .., lost or reordered)

System log is full of such messages. AFAIK this can be related to MTU size. ppp0 negotiates a MTU of 1396 with the ISP. I've tried so far: ip link set dev .. mtu 1396 iptables -A FORWARD -i ...
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881 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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100 views

Require smart cards for connections to Windows 2012 remote access server

We have a Windows 2012 server accepting VPN connections over SSTP and authenticating them using the Network Policy Server feature on the same server. For client authentication we've set it up to ...
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1answer
39 views

Solution for SSL client certificates with user self service

I'm administrating a linux-based small business network. User information is centrally stored in an OpenLDAP directory. There is an existing CA which is currently used to sign server certificates. It ...
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61 views

cisco VPNC + how to use install certificate file on linux

I am using Cisco VPN on windows , before I run the cisco vpn I execute the certificate file as customor.cer ( when I execute the certificate file need to answer on some next screens and finish ) , and ...
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1answer
128 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
324 views

VPN Access to a Synology NAS Behind a Firewall

I have a box that I want access to from outside the office (Synology NAS). I don't need access to the rest of the subnet, just that box. For the moment it's to use a git repo, but some day maybe file ...
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1answer
133 views

How to run “Securepoint VPN client” as a “Microsoft Windows (WIN)” service?

PROBLEM For some reason the original OpenVPN software under Windows does not work for me. So I found an alternative from Securepoint that works for the first time. Unfortunately it does not have ...
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38 views

task cannot be completed because of VPN 809 error

The setup: Windows server 2008 R2; L2TP VPN connection is configured; ports for L2TP are opened on the firewall. To (re)connect the vpn connection the task manager gets utilized. I've created a ...
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28 views

How to keep checkpoint secure remote connected on server 2008 R2

Is there a way to keep my Checkpoint Secure remote version E80.41 from disconnecting on server 2008? I need this VPN connection to be connected all of the time, because this basically is how we ...
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55 views

Can't access internet when connect to pptp vnc build on opensuse13.1

I have built a pptpd vnc server under opensuse13.1, everything looks fine when I running the pptp service. but there is problems when I connect from both android & winxp client: by winxp At ...
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55 views

VPN without public IP of the server

I've a VPN on Windows Server 2012 R2 to secure some intern admin interfaces for a small crowd of people. It's working but when I'm connected to the VPN, it is used for all internet traffic. So when I ...
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269 views

Multiple Windows clients behind a same NAT gateway cannot connect to L2TP/IPsec VPN server at the same time

I have set up a L2TP/IPsec VPN server on a cloud VM (with a public IP address) running CentOS 6.5 (kernel: 2.6.32) with openswan/xl2tpd (openswan: 2.6.37, xl2tpd: 1.3.6). However, if multiple Windows ...
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89 views

Dante - Socks Server - Not Working over Tun0 Interface

I'm trying to set up a socks proxy, so I can bind a port to my vpn interface. However, I cant' seem to get it to work and I'm not sure why. I don't have much experience with this.. Config: ...
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2answers
270 views

Gateway gets stripped from DHCP Reply through OpenVPN tunnel

I have a bridged OpenVPN setup. This is my server config: port 1194 proto udp dev tap0 ca /etc/openvpn/easy-rsa/keys/ca.crt cert /etc/openvpn/easy-rsa/keys/server.crt key ...
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2answers
444 views

IPSec VPN Shrew to Fortigate

I'm trying to configure an IPSec VPN on a Fortigate 80C and connect to it using Shrew Soft VPN. I'm stuck with a negotiation failure, even though debugging on the Fortigate unit shows the same values ...
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80 views

Can only ping certain IP's over VPN

I have 2 Draytek Vigor 2830's set up with a IPSec VPN between the two which is working. Yet I can only ping the router in HQ (10.0.0.9) & the IPCortex (10.0.0.2), the outline below might help. ...
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44 views

SQL DATABASE USING VPN

I have a very simple classic asp site on a Windows 2008 Server with an IIS 7.5 that connects to an Sql database on a Sql 2008 r2. the site works perfectly when accessing it both locally from the ...
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1answer
249 views

My server goes offline when I start my OpenVPN service

I currently have a VPS with DigitalOcean and setup a OpenVPN following this tutorial: https://www.digitalocean.com/community/tutorials/how-to-setup-and-configure-an-openvpn-server-on-centos-6 and ...
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89 views

cisco vpnc + how to disable the IPSec ID and IPSec secret

I use the vpnc in order to open vpn connection against the customer in the following example I run the vpnc and get error about "hybrid" so according to some site they suggest to remark the line ...
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1answer
20 views

Setting up a VPN with rules who can connect with who

For delivering updates and support on software I've been working on I have been thinking about setting up a VPN server. The idea would be that the clients are constantly connected but only the traffic ...
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2answers
65 views

Should our small business pay for a VPN service or can we do it ourselves?

I am currently working for a small business (we have 5 employees at the moment) and are looking to set up a VPN. I was wondering if it would be extremely difficult to set up a VPN ourselves and to ...
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1answer
49 views

VPN routed traffic, response goes outside of VPN?

Here's a weird one. Whenever I'm on a hotel network I tend to like to route all my traffic through my home network. Mainly since I'm not entirely sure all my passwords go through SSL all the time. ...
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96 views

openVPN on TCP 443 + sniproxy only for certain IPs - is it a way to do it?

I'm currently running sniproxy and https server. If user is known (IP is known) iptables just allows connection to sniproxy which redirects user to desired website or local https server (127.0.0.1 ...
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0answers
33 views

ISA Server 2006: no network protocols were successfully negotiated

I've upgraded one old and reliable ISA Server 2004 to 2006 (running on WS2003R2, nothing else runs on that server), it is an edge firewall and VPN provider. Later this year, it will be replaced by ...
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25 views

Weird tty behavior

When connecting to a group of servers in office, I sometimes get the following weird behavior: For any character I type, the previous character that was typed is displayed. So if I type "Hello" I ...
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2answers
135 views

Lync 2013 VPN access

I have a working, internal use only Lync 2013 Enterprise FE pool. Is an Edge server required to expand access to VPN users (no split tunnel, and with double encryption of course), or would a ...
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713 views

Cannot connect to IPSEC/L2TP VPN Arch Linux/Windows 8

I have check a lot of other L2TP/IPsec VPN post and none of them seem to quite match the issues I am having so here is what going on. I am trying to set up a VPN on my Arch Linux server that I can ...
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61 views

Sonicwall Connecting to VPN: failed to find connection entry for message id xxxxxxxx

I am trying to connect to a VPN using SonicWall but after authentication, I am getting "failed to find connection entry for message id xxxxxxxx". Any ideas? Note : I am not getting this error each ...
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0answers
36 views

Amazon VPN connection

I am using a netgear FVS336GV2 firewall and I have a comcast business router in front of it. After numerous phone calls with amazon support I have not been able to establish a vpn connection. I am ...
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1answer
79 views

WatchGuard XTM510, Dialed in VPN (PPTP) users cant Ping hosted datacentre machine on BOVPN

we have a BOVPN from our network 192.168.1.0/24 range to some hosted environments at a datacentre. 172.15.0.1/20 any machine on our internal network ranges can communicate with the systems at the ...
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0answers
117 views

OpenVPN Linux Client does not bring up tap0 interface

I have an OpenVPN client on Linux connecting to an OpenVPN server. The server assigns IPs via DHCP, thus I connect using the tap interface rather than the tun interface. OpenVPN connects, ...
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1answer
242 views

Openswan and OpenVPN

I have installed Openswan and have configured IPSec tunnels and they work perfect until i install OpenVPN. Now i can't find out way the ping wont work. When i execute the "service ipsec status" it ...
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2answers
263 views

TCP connection through IPSec (Linux/Strongswan) stalls after exceeding PMTU

The backups (via Bacula) of one of my servers (“A”) connected via IPSec (Strongswan on Debian testing) to a storage daemon (“B”) don't finish 95% of the times they run. What apparently happens, is: ...