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I currently have a server that is running vSphere 5 (ESXi). My management interface (VMKernel) has an address of and the gateway on that one is It appears to be set up fine and I can manage the server over that IP.

The problem comes when I set up VMs on the same vSwitch. It's pretty much a default configuration. My host has given me a small block of IPs from another subnet and I'm trying to utilize them in my VM, with no luck:

IP Netmask Gateway

My host told me to set the gateway to Is that correct? Either way, when I add those settings to my Windows Server 2008 VM, it cannot route out to the Internet.

If someone could point me towards where I am going wrong, I would really appreciate it.

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Are you sure the VMKernel gateway is configured to the VMKernel port address? That shouldn't work -- can you confirm those settings, and check what the netmask is set to? – Shane Madden May 26 '12 at 0:47
That isn't a small block of IP's - it's a single IP. Can you confirm the netmask with your provider - specifically that it isn't with a mask of – rnxrx May 26 '12 at 2:00
I'm sorry, I mistyped that. Thank you for catching it. The VMKernel IP is and the gateway is .77. The netmask is My block of IPs is My provider says that they were added to the switchport my server is on. They told me to utilize netmask of – Adam May 26 '12 at 7:32
Is it a problem that my default gateway to the Internet is on a different subnet? – Adam May 26 '12 at 7:39 is a /30, or 4 addresses (, which would make sense if you vmkernel were .78 and the router was .77. My guess is that your mask actually should be a /29 (8 hosts), which is I would confirm this, but if this is the case then you should try numbering your vhost at with a mask of and a gateway of – rnxrx May 27 '12 at 2:02

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