Technical Product Specification

Intel® Server Boards S4600LH2/T2 TPS
Revision 2.0
75
 1h, static address (manually configured): Supported on all management NICs. This is the BMC’s default
value.
 2h, address obtained by BMC running DHCP: Supported only on embedded management NICs.
IP Address Source value 4h, address obtained by BMC running other address assignment protocol, is not
supported on any management NIC.
Attempting to set an unsupported IP address source value has no effect, and the BMC returns error code
0xCC, Invalid data field-in request. Note that values 0h and 3h are no longer supported, and will return a 0xCC
error completion code.
6.10.3.5.1 Static IP Address (IP Address Source Values 0h, 1h, and 3h)
The BMC supports static IP address assignment on all of its management NICs. The IP address source
parameter must be set to “static” before the IP address; the subnet mask or gateway address can be manually
set.
The BMC takes no special action when the following IP address source is specified as the IP address source
for any management NIC:
 1h – Static address (manually configured)
The Set LAN Configuration Parameter command must be used to configure LAN configuration parameter 3, IP
Address, with an appropriate value.
The BIOS does not monitor the value of this parameter, and it does not execute DHCP for the BMC under any
circumstances, regardless of the BMC configuration.
6.10.3.5.2 Static LAN Configuration Parameters
When the IP Address Configuration parameter is set to 01h (static), the following parameters may be changed
by the user:
 LAN configuration parameter 3 (IP Address)
 LAN configuration parameter 6 (Subnet Mask)
 LAN configuration parameter 12 (Default Gateway Address)
When changing from DHCP to Static configuration, the initial values of these three parameters will be
equivalent to the existing DHCP-set parameters. Additionally, the BMC observes the following network safety
precautions:
1. The user may only set a subnet mask that is valid, per IPv4 and RFC 950 (Internet Standard Subnetting
Procedure). Invalid subnet values return a 0xCC (Invalid Data Field in Request) completion code, and
the subnet mask is not set. If no valid mask has been previously set, default subnet mask is 0.0.0.0.
2. The user may only set a default gateway address that can potentially exist within the subnet specified
above. Default gateway addresses outside the BMC’s subnet are technically unreachable and the BMC
will not set the default gateway address to an unreachable value. The BMC returns a 0xCC (Invalid
Data Field in Request) completion code for default gateway addresses outside its subnet.
3. If a command is issued to set the default gateway IP address before the BMC’s IP address and subnet
mask are set, the default gateway IP address is not updated and the BMC returns 0xCC.
If the BMC’s IP address on a LAN channel changes while a LAN session is in progress over that channel, the
BMC does not take action to close the session except through a normal session timeout. The remote client
must re-sync with the new IP address. The BMC’s new IP address is only available in-band through the “Get
LAN Configuration Parameters” command.