CHAPTER 3. IPMI INTERFACES
IPMI AUTHTYPE NONE IPMI AUTHTYPE MD2 IPMI AUTHTYPE MD5 IPMI AUTHTYPE STRAIGHT
No authentication. MD2 style authentication. MD5 style authentication. This is the recommended type of authentication. Puts the password into the message in plain text. Don’t use this.
Table 3.30: Authentication types in IPMI
straight password authentication
Table 3.31: Authentication bitmask often used in IPMI
bits 0-5 - reserved 00b - reserved 01b - Get the non-volatile area 10b - Get the volatile area. 11b - reserved
Completion Code. The following special return codes are defined: 82h - The channel is session-less thus does not support this command. bits 0-2 - The channel access mode per table 3.27 on page 62 bit 3 - If 1, require authentication for user-level command. Otherwise authentication
is not required for user-level commands. Note that this has no effect on operator or admin level commands. bit 4 - If 1, require per-message authentication. If 0, no authentication is required
per-message. Note that if this is 0, a session must still be established, but subse- quent messages after session establishment do not require authentication. bit 5 - Enable or diable PEF alerting on the channel. Note that if this is 0 (disabled)
alert immediate still works.
bits 6-7 - reserved bits 0-3 - The privilege limit for the channel per table 3.18 on page 54.
bits 4-7 - reserved Table 3.29: Get Channel Access Command, NetFN S/E (06h),