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6
votes
1answer
708 views

Can Read-Only Domain Controller in External location work when VPN tunnel is down?

I have client which has multiple sites all over the world. They have 2 domain controllers in main location and every other location connects thru to main site with vpn tunnel. Currently the network is ...
5
votes
1answer
27k views

IPsec VPN site-to-site: How should I configure the ipsec.conf files on both sites to get the tunnel up?

What I am trying to do is to create a site-to-site IPsec VPN between my network and my friend's network. We both have a router and two computers on each router, with all computers running Linux. So I ...
5
votes
5answers
6k views

Improving VPN performance - stronger encryption = more performance?

I have a site-to-site VPN set up with two SonicWall's (a TZ170 and a Pro1260). It was suggested to me that turning off encryption (so the VPN is tunneling only) would improve performance. (I'm not ...
5
votes
1answer
1k views

Direct connection between multiple clients on OpenVPN

I've spent my entire day learning about VPN, and have been working with following setup: 2 VPS Servers at the same data centre in Texas. (Texas1 and Texas2), 1 VPS in England and 1 VPS in Atlanta and ...
3
votes
2answers
194 views

DNS Server replication created duplicate A-Records

I have a several Windows Server 2008 R2 DC/DNS servers locally, RODC's at the remote office, and a Windows Server 2012 DC/DNS server on Azure with a VPN tunnel established. Earlier today I moved a ...
3
votes
5answers
299 views

E-Discovery and personal computers

What, if any, steps do you take to minimize the potential of client personal computers being subject to e-discovery during potential lawsuits when their personal home computers are used for work? ...
3
votes
1answer
744 views

IPSec L2L Failover between two pfSense devices

Is it possible to achieve IPSec L2L failover (ie, from one WAN interface to another) between two pfSense devices using Gateway Groups, or really anything other than defining multiple IPSec connections ...
3
votes
4answers
4k views

What is the least expensive gateway for Amazon VPC?

I need to prototype a solution using Amazon VPC - what's the least expensive option available to create a VPC gateway on our side for the test lab? I realize there are probably free VPN gateways ...
3
votes
1answer
633 views

Site-to-Site IPsec vpn not sending ping across a tunnel

This is my first attempt at a site-to-site VPN. I chose to use IPec because it appeared to be the best solution for what I needed to accomplish. I've followed several different tutorials over the last ...
3
votes
1answer
443 views

Is it possible to connect two IPSec site-to-site VPNs to one Windows 2008 Server?

I need to connect to two IPSEC site to site vpns from a Windows 2008 Server at the same time. Is it posible? I tried to assign two IP Security Policies, but it seems I can only have one assigned at ...
3
votes
1answer
615 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, ...
3
votes
1answer
2k views

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 ...
3
votes
2answers
3k views

How do I setup a site-to-site VPN between two Windows 2008 servers?

We have a Windows 2008 server that we want to move offsite to the cloud (we're using Rackspace). It has to talk to our Active Directory domain constantly, so we need a stable site-to-site VPN between ...
3
votes
0answers
1k views

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 ...
2
votes
2answers
3k views

VMWare ESXi - VPN Tunnel to VMs

We are looking at renting a VMWare ESXi server through a provider. This VMWare ESXi server will be allocated a public IP. Most of the VMs that we will host on this server is only meant to be used ...
2
votes
3answers
117 views

How quickly should data/files be visible on a network share that goes through a VPN tunnel?

I'm looking for information on how information is shared/passed across a network between a Windows 7 client OS and a Windows Server 2008 server? Little history of our setup (I apologize as for Im not ...
2
votes
1answer
1k views

Site-specific folder redirection through group policy

Suppose I have two sites - A and B - both with 5/5 Mbps WAN links that are connected via L2L VPN. Each Site is defined in AD Sites 'n Services with its own domain controllers, etc. The problem is that ...
2
votes
4answers
3k views

DHCP over VPN between SonicWALL NSA-2400 and NSA-240 loses connectivity each night

In my central office I have a SonicWALL NSA-2400 appliance acting as the hub for several remote offices. It is configured to pass DHCP requests to my internal DHCP server. The VPN connection works ...
2
votes
1answer
1k views

VPN IP Routing - slow connections

UPDATE: Router error logs show: LCP Time-out 0 I'm not sure how to correct this. The Lan-to-Lan profiles are set to -1 Idle Timeout (for the remote branch). I have a PPTP VPN running between two ...
2
votes
2answers
3k views

Understanding ipsec with NAT and dynamic IP's

I'm using OpenSWAN to set up a net-to-net VPN tunnel. I have succeeded in configuring a test scenario as follows: About test and test2: they are Ubuntu 12.04 virtual machines created using ...
2
votes
2answers
635 views

TCP Reverse Proxy through VPN

I have a rather odd situation, but it's simple, I swear. I have a server (we'll call it host A) that's connected up to the internet and I use for some websites and other odds and ends. I have another ...
2
votes
1answer
761 views

Recommendation for a virtual site-to-site VPN appliance [closed]

can you please recommend an Virtual Appliance or Operating System for creating multiple site-to-site VPN? The appliance must of course handle IPSec. It should also be OpenVPN capable. An Additional ...
2
votes
2answers
126 views

Replace Cisco 2600 PTP T1

Our office and an outside location have a dedicated T1 point to point connected with Cisco2600's. We need to eliminate the need of the T1 circuit as it is costly and would like to route the traffic ...
2
votes
1answer
510 views

Site to Site VPN problem, connection succesful data only oneway?

To start things off, I'm not the actual Administrator for the VPN Server, but he is also at a loss so I thought I'd ask it here. I know it's a Cisco ASA Firewall/VPN. I have a router that connects to ...
2
votes
3answers
563 views

Site to Site VPN

We have two sites, one linux based, the other windows based which we would like to connect permently over VPN. Does anyone know which linux VPN software is best for this? (I'm using PPTP on windows ...
2
votes
1answer
13k views

Sonicwall route traffic through specific interface based on destination

Here's my setup. I have Sonicwall NSA 2400, it is configured with Percentage-Based WAN Load Balancing. LAN Interface: X0 PRI Interface: X1 T1 Interface: X2 My question is, given any LAN->WAN ...
2
votes
4answers
2k views

How to securely enable file sharing over PPTP on Windows 2008 Server

I have set up a Windows SBS 2003 domain (LAN) and a stand-alone Windows 2008 Server (web server) at another location (workgroup). I established PPTP VPN connection (SBS dials web server) over which ...
2
votes
1answer
51 views

Does a site-to-site IPSEC vpn need an always on connection?

Does a site-to-site IPSEC vpn needs an always on connection/tunnel with keepalives or is it possible to only encrypts packets when needed (when it matches a route or something like that)?
2
votes
2answers
467 views

Internal Site to Site VPN over MPLS speed issues?

How do I troubleshoot slow performance of a site to site VPN tunnel over a MPLS circuit? What are the relevant reports/stats I should be looking at? Background: I support one end of a Site to Site ...
2
votes
1answer
840 views

site to site VPN

The problem i am facing is establishment of a site to site VPN in between pfSense( version 2.0.1) and SonicWall Pro2040 Enhanced ( Firmware Version: SonicOS Enhanced 4.2.1.4-7e) . All of the ...
2
votes
2answers
924 views

Cisco ASA 5505 (8.05): asymmetrical group-policy filter on an L2L IPSec tunnel

I'm trying to find a way to setup a bi-directional L2L IPSec tunnel, but with differing group-policy filter ACLs for both sides. I have the following filter ACL setup, applied, and working on my ...
2
votes
1answer
988 views

Cisco ASA - VPN and Hairpinning

We have 2 sites that will be linked by a IPSEC VPN between 2 Cisco ASAs: Site 1 8Mb ADSL Connection Cisco ASA 505 Site 2 2Mb SDSL Connection Cisco ASA 505 Basically, both sites need access to a ...
2
votes
1answer
9k views

How can I forward ALL traffic over a site-to-site VPN on Cisco ASA?

I currently have two Cisco ASA 5100 routers. They are at different physical sites and are configured with a site-to-site VPN which is active and working. I can communicate with the subnets on either ...
2
votes
2answers
105 views

Windows Web Server in DataCenter Authenticate with AD in Office

We would like to have put a File Server in DataCentre to allow user to upload/download files when they are home. Since we have hundreds of users and would like to let the user to authenticate with the ...
2
votes
0answers
30 views

IPsec - strange behavior

I have set up site-to-site ipsec connection between linux(debian) and mikrotik router. The tunnel is up linux configuration: config setup interfaces=%defaultroute keep_alive=60 ...
2
votes
0answers
4k views

[SOLVED ]Openvpn routing for lan to lan through tun

I am trying to setup an OpenVPN tun to connect two lan's The open vpn connection is up and working but there is a problem with my routing or nat or something. What I need is an example of what a ...
2
votes
1answer
372 views

L2TP server - site-to-site vpn connection

I am not sure this is the right place for this question but here goes. We want to connect users using an L2TP VPN connection to a users at the other end of a SonicWall site-to-site VPN. Currently we ...
2
votes
0answers
384 views

ASA Site to Site VPN Version 8.4 Natting Same Subnets

My site and client site has same Lan IP range. Both using ASA version 8.4 Site A : 192.168.18.0 Site B : 192.168.18.0 Please tell me how to do Natting on 8.4 Any help would be highly appreciated. ...
2
votes
1answer
267 views

Will a Checkpoint Safe@Office 500WP Respond to Site to Site VPN (IPSec) on WAN2?

Pretty simple - if I have two WANs, will the site-to-site VPN work if I specify the WAN2 IP address? (It currently works with the WAN1 IP.)
2
votes
2answers
2k views

DD-WRT PPTP VPN problem [closed]

I try to configure a DD-WRT as a PPTP client. The VPN Server is Windows Server 2003. This is my scenario: The Windows 2003 Server has set to give to the VPN Client the 10.0.0.81 fixed IP and to ...
2
votes
0answers
848 views

Site-to-Site IPSec VPN: bridged only

I'd like to setup a site-to-site IPSec VPN tunnel between a head office and a branch office, and for political/security reasons, with the sole purpose of being able to access a "Management" subnet at ...
2
votes
2answers
121 views

Remote site AD design (2003)

A remote site has about 25 of our 50-ish employees. They have their own AD domain presently (2003) but I want to look at getting them onto the same global domain for ease of access/administration. The ...
1
vote
3answers
2k views

The best point-to-point VPN?

I'm working with a contractor in a different country. We need some method to add his machine to the local network, using a point-to-point VPN. Unfortunately, Hamachi, while very easy to use, creates ...
1
vote
3answers
891 views

Site to site VPN tracert

I'm not sure how in depth I need to go with this question, but currently I have a site-to-site VPN setup and we are having major connection issues between the two sites. I did a tracert and received ...
1
vote
2answers
15k views

pfSense Site-toSite VPN with OpenVPN connects but won't route traffic

Using two pfSense routers, I've created a shared-key VPN between 2 sites. Both routers are pfSense 1.2.2. The pfSense box at the client site is the gateway router for that site, but at the server ...
1
vote
4answers
327 views

Extent LAN over internet

I have the following scenario. A computer is connected to private network. I do NOT have access to modify anything on this private network. I am just supplied with a network cable. The computer ...
1
vote
2answers
454 views

Using IP phones over a VPN?

We have a few small sites that each have a Draytek Vigor (various models) which are configured to create a company VPN. It's setup as follows: Branch 1 (192.168.1.0/255.255.255.0) Accepts Incoming ...
1
vote
3answers
660 views

What firewall should my network configuration be based on?

I’m working on a plan to replace a number of router/firewalls in our company’s and customer’s networks. We have 2 offices and a number of servers hosted in a datacentre that have IPSec VPN links to ...
1
vote
1answer
126 views

Set-AzureVNetGatewayKey cmdlet does not exist in Azure PowerShell

Background I am attempting to link up multiple VNets with one another in Azure. To do this I am following this tutorial: VNet-to-VNet: Connecting Virtual Networks in Azure across Different Regions I ...
1
vote
1answer
365 views

Communications between Amazon EC2 VMs in VPCs across different regions?

I am building a Web site that will have users in the US and in Europe. I setup an Amazon Virtual Private Cloud (VPC) in the US-east region, and another VPC in Europe-west region. I also configured ...