Dell PowerEdge M420 Reference Manual page 192

Optionally you may request that the system
automatically retrieve an IP address from the network
via DHCP (this requires that you have a DHCP server
running on the network).
To setup an IP address:
Please enter the IP address of the device (A.B.C.D) or
enter "DHCP" (without the quotes) to automatically
request an IP address from the network DHCP server.
192.168.1.2<Enter>
Please enter the IP subnet mask (A.B.C.D or /nn):
255.255.255.0<Enter>
Step 4:
Finally, set up the gateway. Please enter the IP
address of the gateway from which this network is
reachable
192.168.1.1<Enter>
This is the configuration information that has been
collected:
SNMP Interface = "public"@192.168.2.1
User Account setup = admin
Password = **********
Management IP address = 192.168.2.1 255.255.255.0
Gateway = 0.0.0.0
Step 5:
If the information is correct, please select (Y) to
save the configuration, and copy to the start-up
configuration file. If the information is incorrect,
select (N) to discard configuration and restart the
wizard: [Y/N]
y<Enter>
192
Using the CLI