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Hi Microsoft NLB Gurus,<br />
<br />
We have Microsoft 2008 R2 NLB multicast cluster running on VMware. And each host has single interface and we have a problem accessing the virtual IP over the subnet. <br />
&nbsp;<br />
1. Adding static ARP entries would not be possible.<br />
2. <a href="https://support.microsoft.com/en-us/kb/960916" rel="ugc">https://support.microsoft.com/en-us/kb/960916</a>&nbsp;is just for Windows 2008 not for WIndows 2008 R2<br />
3. We do not want to go with Unicast at this stage<br />
<br />
Forwarding enable will fix this issue ?<br />
<br />

<pre><code id="code-10-28960410-1">netsh interface ipv4 set interface &quot;NLB NIC&quot; forwarding=enabled </code></pre>
<br />
But most of readings on the Internet recommends above command for the environment which has two interfaces and when NLB interface dose not have a gateway IP.<br />
<br />
So, what would be the fix for this ?
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Hi Microsoft NLB Gurus,

We have Microsoft 2008 R2 NLB multicast cluster running on VMware. And each host has single interface and we have a problem accessing the virtual IP over the subnet. 
 
1. Adding static ARP entries would not be possible.
2. https://support.microsoft.com/en-us/kb/960916 is just for Windows 2008 not for WIndows 2008 R2
3. We do not want to go with Unicast at this stage

Forwarding enable will fix this issue ?

(CODE)

But most of readings on the Internet recommends above command for the environment which has two interfaces and when NLB interface dose not have a gateway IP.

So, what would be the fix for this ?

Microsoft 2008 R2 NLB Multicast - Accessing over subnets ?

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

VMware, a software company founded in 1998,  was one of the first commercially successful companies to offer x86 virtualization. The storage company EMC purchased VMware in 1994. Dell Technologies acquired EMC in 2016. VMware’s parent company is now Dell Technologies.

VMware has many software products that run on desktops, Microsoft Windows, Linux, and macOS, which allows the virtualizing of the x86 architecture.  Its enterprise software hypervisor for servers, VMware vSphere Hypervisor (ESXi), is a bare-metal hypervisor that runs directly on the server hardware and does not require an additional underlying operating system.

VMware

Network design and methodology, also known as network architecture, is the design of a communication network. It is a framework for the specification of a network's physical components and their functional organization and configuration, its operational principles and procedures, as well as data formats used in its operation. In telecommunication, the specification of a network architecture may also include a detailed description of products and services delivered via a communications network, as well as detailed rate and billing structures under which services are compensated.