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Is there a setting on a ESXi 5 vSwitch that will make it so DHCP broadcasts aren't forwarded to the rest of the network? I have a small micro server I'm testing some things out and I'd like a DHCP server to run for my VMs but don't want to change any other settings for the rest of the subnet not on the ESXi host.

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up vote 3 down vote accepted

No; vSwitches are switches, not firewalls (leaving out the Cisco 1000v, since that's a different ball of wax entirely).

If you need to isolate this network from your live network, then do so - make a new port group that's not attached to your production network.

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That's what I thought but I figured I throw it out there. –  Peter Jul 9 '12 at 20:02
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