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The guide has a lot of the information that I need
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The guide has a lot of the information that I need

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Currently we have lync chat/im working normally internally, we would like to allow external access and mobility now. &nbsp;My main question is can this be done with one firewall? &nbsp;I'd prefer to use a 3 legged dmz setup, rather than two firewall to create a dmz.<br />
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If anyone has a link to a diagram of this that would be greatly helpful.
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Currently we have lync chat/im working normally internally, we would like to allow external access and mobility now.  My main question is can this be done with one firewall?  I'd prefer to use a 3 legged dmz setup, rather than two firewall to create a dmz.

If anyone has a link to a diagram of this that would be greatly helpful.

Setup Lync for external access with only one firewall

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

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.

Windows Server 2008

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.

Networking

Hardware-based firewalls provide more sophisticated protection for inbound and outbound traffic than the simple Windows software firewall or the basic NAT firewalls found in routers. These devices implement techniques such as stateful packet inspection, deep packet inspection, and content filtering; and may include built-in antivirus and anti-malware protection.

Hardware Firewalls

A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.