ATEN RCM416 User Manual page 175

 IPv4 Settings
 IP Address:
IPv4 is the traditional method of specifying IP addresses. The KVM
over IP switch can either have its IP address assigned dynamically
(DHCP), or it can be given a fixed IP address.
 For dynamic IP address assignment, select the Obtain IP address
automatically radio button. (This is the default setting.)
 To specify a fixed IP address, select the Set IP address manually
radio button and fill in the fields with values appropriate for your
network.
Note: 1. If you choose Obtain IP address automatically, when the
switch starts up it waits to get its IP address from the DHCP
server. If it hasn't obtained the address after one minute, it
automatically reverts to its factory default IP address
(192.168.0.60.)
2. If the switch is on a network that uses DHCP to assign
network addresses, and you need to ascertain its IP address,
see IP Address Determination, page 256, for information./
 DNS Server
 For automatic DNS Server address assignment, select the Obtain
DNS Server address automatically radio button.
 To specify the DNS Server address manually, select the Set DNS
server address manually radio button, and fill in the addresses for
the Preferred and Alternate DNS servers with values appropriate
for your network.
Note: Specifying the Alternate DNS Server address is optional.
Chapter 8. Device Management
159