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While it possible to configure RRAS to do site to site connections, security best practice would suggest against having an external host directly connected to the Internet providing a routed connection straight into your LAN.<br />
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What are you trying to acheive with this VPN ? There may be a more secure solution.
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Technician

Mark Poore

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how to configure VPN connection from windows server 2012 to a firewall/router. Looking KB to help with setting up a L2L VPN<br />
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I have a cloud server with a real real world IP that I want to connect to my local office that has a Sophos SG135 UTM firewall. How do I configure the server to connect to my firewall with VPN IPsec?
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how to configure VPN connection from windows server 2012 to a firewall/router. Looking KB to help with setting up a L2L VPN

I have a cloud server with a real real world IP that I want to connect to my local office that has a Sophos SG135 UTM firewall. How do I configure the server to connect to my firewall with VPN IPsec?

Windows Server 2012 to Sophos firewall site to site VPN

The Microsoft Server topic includes all of the legacy versions of the operating system, including the Windows NT 3.1, NT 3.5, NT 4.0 and Windows 2000 and Windows Home Server versions.

Microsoft Server OS

This topic area includes legacy versions of Windows prior to Windows 2000: Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions including Windows Mobile.

Windows OS

Windows Server 2012 is the server version of Windows 8 and the successor to Windows Server 2008 R2. Windows Server 2012 is the first version of Windows Server to have no support for Itanium-based computers since Windows NT 4.0. Windows Server 2012, now in its second release (Windows Server 2012 Release 2) includes Foundation, Essentials, Standard and Datacenter, and does not support IA-32 or IA-64 processors.

Windows Server 2012

A virtual private network (VPN) is a network that uses a public telecommunication infrastructure, such as the Internet, to provide remote offices or travelling users access to a central organizational network securely. VPNs encapsulate data transfers using secure cryptographic methods and other security mechanisms to ensure that only authorized users can access the network and that the data cannot be intercepted.