$ sudo ipmitool lan print 1  
Set in Progress : Set Complete
Auth Type Support   : MD5 PASSWORD
Auth Type Enable: Callback : MD5 PASSWORD
: User : MD5 PASSWORD
: Operator : MD5 PASSWORD
: Admin: MD5 PASSWORD
: OEM  :
IP Address Source   : DHCP Address
IP Address  : 10.23.185.125
Subnet Mask : 255.255.252.0
MAC Address : 90:49:fa:01:2e:93
SNMP Community String   : public
IP Header   : TTL=0x00 Flags=0x00 Precedence=0x00 TOS=0x00
BMC ARP Control : ARP Responses Enabled, Gratuitous ARP Disabled
Gratituous ARP Intrvl   : 0.0 seconds
Default Gateway IP  : 10.23.184.1
Default Gateway MAC : 00:00:00:00:00:00
Backup Gateway IP   : 0.0.0.0
Backup Gateway MAC  : 00:00:00:00:00:00
802.1q VLAN ID  : Disabled
802.1q VLAN Priority: 0
RMCP+ Cipher Suites : 0,1,2,3,4,6,7,8,9,11,12,13,15,16,17,18
Cipher Suite Priv Max   : caaaaaaaaaaaaaa
: X=Cipher Suite Unused
: c=CALLBACK
: u=USER
: o=OPERATOR
: a=ADMIN
: O=OEM

$ ipmitool -I lanplus -U root -H (hz-bdw-bmc/ipaddr) sol activate
$ ipmitool -I lanplus -U root -H (hz-bdw-bmc/ipaddr) -p 123456 sol activate(可以不用再次输入密码，直接使用)
------------------  deactivate ---------------------------------
$ ipmitool -I lanplus -U root -H 192.168.101.108 sol deactivate

$ ipmitool -I lanplus -U root -H 192.168.101.108 sol activate
Password:
Info: SOL payload disabled

ipmitool -I lanplus -H $bmcaddr -E sol set enabled true

$ ipmitool -I lanplus -U root -P 123456 -H 192.168.102.207 sol activate
Error activating SOL payload: Invalid data field in request
解决方案：
$ ipmitool -I lanplus -H 192.168.102.207 -U root -E sol set-in-progress enabled true
Unable to read password from environment
Password:
$ ipmitool -I lanplus -H 192.168.102.207 -U root sol activate
Password:
[SOL Session operational.  Use ~? for help]

$ ipmitool -I lanplus -H 192.168.102.207 -E sol
Unable to read password from environment
Password:
Error: Unable to establish IPMI v2 / RMCP+ session
解决方案：
加上要使用的用户比如root：-U root