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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Connect AWS and Azure via OpenVPN

I am trying to connect two networks (AWS and Azure) together via OpenVPN. I am aware of other implementations (OpenSwan+Azure GW etc.) but I need maximal portability as I will be expanding this to ...
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84 views

ubuntu xl2tp ppp0 not properly handling the DF flag (Packet Corrupt) while sending packages > defined MTU

While trying to setup an Ubuntu Linux server as a client to an l2tp/IPSEC server, I notice inconsistencies while trying to send data. The tunnel/VPN establish the connection / handshake properly and ...
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43 views

VPN tunnel not coming up in sonicwall firewall 3500 NSA

I have a customer who has two internet connection at two location of his office via my ISP and another ISP. THe problem is when this customer uses other ISP conenction at both ends of and makes a VPN ...
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81 views

why cisco VPNC work on the second time each time and not on the first time

I use the vpnc ( cisco VPN that installed on linux red-hat 6.X ) and the vpnc.conf file look like this more /etc/vpnc.conf ## generated by pcf2vpnc IPSec ID Comvwde IPSec gateway 217.118.6.7 ...
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137 views

Windows 2012 r2 port forwarding

So my problem is that I'm trying to open a Virtualbox RDP on Windows 2012 to VPN nework on the same host. I've got one external network adapter and a virtual adapter, created by VPN. I've set up a ...
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57 views

IOS8 IKEV2 user not disconnecting from windows server 2008 RRAS

We have severs where all rras protocols are setup, and all are working fine, recently ios8 starts supporting ikev2. we are using configuration file on ios8 for this purpose, connection established ...
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162 views

Scheduled RasMan connection to SSTP VPN fails only at night

Background I have an SSTP VPN with a self-signed certificate. It's running on a physical instance of Server 2008 R2 on our LAN. Three off-network workstations are scheduled to connect to the VPN "at ...
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274 views

FreeBSD L2TP/IPsec not routing traffic to vpn server

I have configured a VPN server on my FreeBSD server, it all seems to be running, but the VPN traffic is not routing through to the local VPN server and I cannot figure out as to why. So my question ...
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145 views

Encrypted layer 2 tunnel over Internet for a contiguous subnet

I have two offices that are connected at layer 2 with fiber on a primary link with contiguous subnets on each end(it won't change anytime soon). It works just fine, I have full end-to-end layer 2 ...
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884 views

Cannot make TCP Connection with OpenVPN Server

Client OpenVPN assigned IP: 10.8.0.2 ↓ TCP on 1194 Internet ↓ Router port-forwards 1194 to server- Public IP 104.162.67.198 ↓ Server LAN IP: 10.8.0.1 I think the above is what I am trying ...
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117 views

Windows firewall blocking network shares through VPN server

I have a VPN server in front of a 172.16.0.0/24 network. On my client side is a 192.168.1.0/24 network. I am able to successfully VPN in to the server network from the client, and I am trying to ...
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358 views

OpenVPN ignoring openvpn.conf, throws unrecognized or missing option

I set up openVPN on Debian, but can't start the service. [FAIL] Starting virtual private network daemon: openvpn failed! Syslog says Options error: Unrecognized option or missing parameter(s) in ...
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565 views

Ping connected Clients to VPN tunnel PPTP

I have set up a vpn server on CentOS 6 (PPTP) following this guide... Server End ifconfig ppp0 Link encap:Point-to-Point Protocol inet addr:192.168.1.15 P-t-P:192.168.1.200 ...
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99 views

vpnc through openvpn failed

I should connect to a Cisco VPN server for example 95.94.66.6, it configured to accepts specified IPs so I launched a server with a registered IP on Cisco which runs an openvpn server. The scenario ...
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120 views

Separate L2TP/IPsec VPNs with dynamic VLAN assignment

I am working on a Linux (Debian 7) VPN concentrator for different kinds of remote access. One of the offered protocols is L2TP/IPsec because of the client availability. I am using xl2tpd which in turn ...
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56 views

VPN server stopped functioning with Windows clients

Our Windows 2003R2 VPN server (Routing and Remote access) no longer lets Windows clients (Windows 7, with the latest MS patches) connect. The client tries, and craps out with Error 806. This is PPTP. ...
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52 views

NAT for IPSEC access?

Please help to understand if the following configuration can be created. I have IPSEC connection with my customer. It is site2site vpn between customer network and my network 10.102.103.0/28. This ...
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73 views

Windows VPN / TMG Server Expired Password Stuck Sending New Password

I have a Windows Server 2008R2 Server running Forefront TMG (7.0.9193.500) which works as our firewall and VPN gateway. For the most part it works, blocking traffic and allowing users to VPN in. I ...
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128 views

Printer on OS X not printing across VPN subnets

I have an interesting situation where I have a two servers that connect two subnets via a VPN. One side is 192.168.0.0/24 and the other is 192.168.1.0/24. Communications appear to be working okay. I ...
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305 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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1k 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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279 views

Route between two branch offices via IPsec VPN to head office?

I have TMG 2010 running on Server 2008 R2 in our head office with 2 branch offices connecting in using Dray Tek 2930 routers with IPsec site to site VPNS. The remote sites can route between the head ...
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92 views

Aggregate two pptp connection ubuntu

I used pptp client to create two pptp VPN connection ppp0 and ppp1. I would like to aggregate these two connections (in round-robin style). I tried bonding , but it seems that it only work for two ...
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75 views

Cisco RV016 dual WAN and VPN setup

I have a VPN of several RV016 routers and I want to set some of them with 2 ISPs. I plug the two ISP cables in WAN 1 and 2 ports and configure the router to "Intelligent Balancer(Auto Mode)". It works ...
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1k views

Site-to-Site PPTP VPN connection between two Windows Server 2008 R2 servers

We have two Windows Server 2008 R2 machines, one in our main office and one in a new office which we have just moved offsite. The main office has previously been handling client-to-server PPTP VPN ...
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227 views

Openswan and sonicwall and encryption parameters

This error leads me to investigate my encryption parameters: 003 "sonicwall" #2: ignoring unknown Vendor ID payload [...] Can some expert please have a look at tell me what is wrong? Sonic wall ...
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396 views

Trying to change a custom VPN port back to the original on Fortigate 40C

We recently changed our firewall and bought a Fortigate 40C device. We wanted to use our old VPN settings. The Fortigate support technician told us that this model was new and he didn't know it in ...
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432 views

Is it possible to do IPSec Site to Site VPN without static & public IP on one end?

I am working on a project for my engineering degree that requires me to interface with some pre-existing equipment, so I am rather limited on my options. I'm rather new to VPN and ipsec for that ...
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252 views

VPNC cisco + quick mode response rejected error

I installed a vpnc on my Linux red-hat machine version 6.3 Most of the cases vpnc work well ( connecting to gateway customers by vpnc ) But against some particular customers ( Cisco gateways ) , ...
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189 views

TUN/TAP VPN no internet connection

I have set up a tun/tap vpn to a VPS. For this, I created a 10/24 network and gave the server the IP 10.0.0.100 and my client got 10.0.0.200. I can now successfully ping the server / access my mail ...
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160 views

Connecting to incoming VPN clients from local ip

I have a dynamic VPN set up on a SRX 220 running Junos 11.4R10.3 Clients can connect and access the protected resources, but systems on the local network can not access connected clients. ...
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438 views

VPN connection reset

I have a device running ArchLinux and OpenVPN, which was connecting to VPN server without problems until recently. Now it can't connect, with the following output that keeps looping indefinitely: ...
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68 views

How to set the router address in OSX Server VPN

I am able to connect to OSX Server (10.9.2) through a (L2TP) VPN tunnel. However, any other computers in my subnet can not be accessed. On the client (OSX 10.9.2), the router's IP address is being ...
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94 views

VPN, routing and bridging two networks together

I have a site which I can VPN into via a Cisco RV082 10/100 8 Port VPN router. The IP address subnet on the LAN is 192.168.3.0. One Windows machine on this network contains two network cards which ...
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65 views

Open ports for VPN users

I have been looking around for some time for answer to this, and have yet to find one. The issue that I am having is that users that are connected to the VPN cannot do the following, as examples: ...
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875 views

How to prevent Windows Server 2008 R2 from automatically shutting down applications?

I have been running various processes over night on a Windows 2008 R2 AMD64 SP1 virtual server share via a VPN connection and remote desktop. Recently, I have been noticing that when I return in the ...
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99 views

SSH Tunnel not working, but not able to find the point of failure as it worked previously

I am having an odd issue wherein suddenly port forwarding stopped working in a particular scenario for me. By default I need a particular port forwarded on all servers I manage and so I have the ...
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332 views

Vyatta Remote Access VPN firewall (PPTP)

I am using Vyatta Remote Access VPN (PPTP) and NAT for proxy. When pc-A and pc-B are connected to VPN, pc-A ipaddress is 192.168.10.10 and pc-B is 192.168.10.11. ...
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173 views

vpnc: vpnc.c:1166: lifetime_ike_process: Assertion `0' failed

I have on a Fritzbox configured a VPN access. Now I'm trying to setup a VPN client on a CentOS 6 machine. For that I have installed vpnc and NetworkManager-vpnc and I'm following the description at ...
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118 views

Pass a traffic from a specific domain through OpenVPN

I want to pass traffic from a specific domain through openvpn (tun0) and the rest through eth0 How can I configure openvpn to work with eth0? the domain name is set with ddclient to update dynamic ...
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1k views

Cannot access L2L VPN from RA VPN connected client on Cisco ASA 5510

We have a Cisco 1921 router running IOS 15.1 at one of our branches which is connected via a L2L IPsec VPN to a ASA5510 running ASA 7.2 at our headquarters. The ASA also provides IPSec Remote Access ...
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63 views

AWS VPC public web application connecting to database via VPN

What I am trying to do is set up a web application that is public facing but makes calls to a database that is on an internal network. I have been trying to set up an AWS VPC with a public subnet, ...
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160 views

big speed difference on a network link with and without VPN tunnel

Scenario: We have a network link between two offices. The link is provided by a third party company through a VLAN on their network, but to us it is totally transparent -as if we had a simple ...
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271 views

Setting up an IPSec VPN with Cisco ASDM

I am trying to set up a VPN remote access with a Cisco ASDM 6.4 for ASA 5505 Version 8.2(5). In order to set up the VPN I followed this steps. After this steps my info look like this: VPN Tunnel ...
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243 views

RRAS and Static Routes for VPN

I've searched and searched and cannot find an answer (that I can understand). Here's my situation: I've got an office network using IP addresses like 192.168.1.1-255 and a home network using the same ...
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80 views

Disconnect lancom vpn connection

How can I kill a special vpn connection within ssh session on my lancom router? # show my active connections ls Status/VPN/Connections # I try something like ... set ...
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701 views

SSTP VPN connects, then disconnects

I'm trying to setup an SSTP VPN on Windows Server 2012 which works fine when I connect from the same subnet as the RAS server but does not work when I configure PAT or when I try to route the traffic ...
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33 views

Multiple IPsec tunnels implented with raccon - need tunnel specific debug output

I have a network appliance box serving as an end point for several site to site IPsec VPN tunnels. raccon's docs specify that a log file can be written to with the -l option. My clunky approach to ...
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97 views

Strange DNS behaviour over VPN

We have a small branch with few computers with few computers connected via the Internet to our central building. We don't use site-to-site, but dial-in to the Cisco router (we use ShrewSoft as a ...
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160 views

CheckPoint Firewall R71: Is it possible to reserve an IP for a specific MAC address on a VPN session?

My Checkpoint firewall is configured to allow users to open the GUI (Smart Dashboard) only if their IP is on the allowed list. Whenever I work from home (I use the CheckPoint SNX client on an Ubuntu ...