IBM BladeCenter 4-Port Installation Manual page 59

server. If this option is set, the switch module will first look for a
BOOTP server to provide it with this information before using the
default or previously entered settings.
DCHP The switch module will send out a DCHP broadcast request when it is
turned on. The DCHP protocol allows IP addresses, network masks,
and default gateways to be assigned by a DCHP server. If this option
is set, the switch will first look for a DCHP server to provide it with
this information before using the default or previously entered
settings.
Manual
Allows the entry of an IP address, Subnet Mask, and a Default
Gateway for the switch. These fields should be of the form
xxx.xxx.xxx.xxx, where each xxx is a number (represented in decimal
form) between 0 and 255. This address should be a unique address on
the network assigned for use by the network administrator. The fields
that require entries under this option are as follows:
Subnet Mask
Default Gateway
A bitmask that determines the extent of the subnet that the
switch module is on. Should be of the form xxx.xxx.xxx.xxx,
where each xxx is a number (represented in decimal) between
0 and 255. The value should be 255.0.0.0 for a Class A
network, 255.255.0.0 for a Class B network, and 255.255.255.0
for a Class C network, but custom subnet masks are allowed.
Note: For switch communication with a remote management
station, such as the IBM Director server, through the
management module external Ethernet port, the switch
module internal network interface and the
management module internal and external interfaces
must be on the same subnet.
IP address that determines where packets with a destination
address outside the current subnet should be sent. This is
usually the address of a router or a host acting as an IP
gateway. If your network is not part of an intranet, or you do
not want the device to be accessible outside your local
network, you can enter a value of 0.0.0.0 in this field.
Chapter 5. Configuration through the Telnet interface
45