Technical product specification
Intel
®
Server Board S2600CP and Server System P4000CP TPS
Intel® Server Board S2600CP and Intel® Server System P4000CP Platform Management
Revision 1.8
Intel order number G26942-005
75
6.4.3.2 IPMI 2.0 Messaging
IPMI 2.0 messaging is built over RMCP+ and has a different session establishment protocol.
The session commands are defined by RMCP+ and implemented at the RMCP+ level, not IPMI
commands. Authentication is implemented at the RMCP+ level. RMCP+ provides link payload
encryption, so it is possible to communicate private/sensitive data (confidentiality).
The BMC supports the cipher suites identified in Table 22.
Table 22. Supported RMCP+ Cipher Suites
ID
Authentication Algorithm
Integrity Algorithm(s)
Confidentiality Algorithm(s)
0
1
RAKP-none
None
None
1
RAKP-HMAC-SHA1
None
None
2
RAKP-HMAC-SHA1
HMAC-SHA1-96
None
3
RAKP-HMAC-SHA1
HMAC-SHA1-96
AES-CBC-128
6
RAKP-HMAC-MD5
None
None
7
RAKP-HMAC-MD5
HMAC-MD5-128
None
8
RAKP-HMAC-MD5
HMAC-MD5-128
AES-CBC-128
11
RAKP-HMAC-MD5
MD5-128
None
12
RAKP-HMAC-MD5
MD5-128
AES-CBC-128
Note: Cipher suite 0 defaults to callback privilege for security purposes. This may be
changed by any administrator.
For user authentication, the BMC can be configured with ‘null’ user names, whereby
password/key lookup is done based on ‘privilege level only’, or with non-null user names, where
the key lookup for the session is determined by user name.
IPMI 2.0 messaging introduces payload types and payload IDs to allow data types other than
IPMI commands to be transferred. IPMI 2.0 serial-over-LAN is implemented as a payload type.
Table 23. Supported RMCP+ Payload Types
Payload Type
Feature
IANA
00h
IPMI message
N/A
01h
Serial-over-LAN
N/A
02h
OEM explicit
Intel (343)
10h – 15h
Session setup
N/A
6.4.3.3 RMCP/ASF Messaging
The BMC supports RMCP ping discovery in which the BMC responds with a pong message to
an RMCP/ASF ping request. This is implemented per the Intelligent Platform Management
Interface Specification Second Generation, Version 2.0.
6.4.3.4 BMC LAN Channels
The BMC supports three RMII/RGMII ports that can be used for communicating with Ethernet
devices. Two ports are used for communication with the on-board NICs and one is used for
communication with an Ethernet PHY located on an optional add-in card (or equivalent on-board
circuitry).