Specifications

CHAPTER 7 Networking
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6. To make changes to the subnet or the DHCP settings for a virtual network, click
the button on the right that corresponds to the virtual network you want to
configure, then choose Subnet or DHCP.
Changing the Subnet
In the Subnet dialog box, you can change the subnet’s IP address and the subnet
mask.
The address should specify a valid network address that is suitable for use with
the subnet mask.
The default subnet mask is 255.255.255.0 (a class-C network). Typically, this
means you should modify only the third number in the IP address — for
example, x in 192.168.x.0 or 172.16.x.0. In general, you should not change the
subnet mask. Certain virtual network services may not work as well with a
customized subnet mask.
When you modify the network address or subnet mask, GSX Server
automatically updates the IP address settings for other components — such as
DHCP, NAT and host virtual adapter — on that virtual network to reflect the new
settings. The specific settings that are automatically updated include DHCP lease
range, DHCP server address, NAT gateway address and host virtual adapter IP
address. However, if you have changed any of these settings from its default
value — even if you have later changed the setting back to the default — GSX
Server does not update that setting automatically. It presumes that custom
settings are not to be modified.