Remote Lights-Out Mgmt (iLO 2, iLO, RILOE II) Forum
Showing results for 
Search instead for 
Do you mean 

Error: Unable to establish LAN session

Occasional Contributor

Error: Unable to establish LAN session

Hi All,
I am unable to establish external LAN connection from local host machine to external BMC machine. Even though BMC was configured properly.

[root@ist-042b087d059 ~]# ipmitool -I lan -H 16.82.185.196 channel info
Password:
Error: Unable to establish LAN session
ipmi_lan_send_cmd failed to open intf
Unable to Get Channel Info

[root@ist-042b087d059 ~]# /usr/bin/ipmitool -I open lan print
Set in Progress : Set Complete
Auth Type Support : NONE 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 : 16.82.186.196
Subnet Mask : 255.255.252.0
MAC Address : 00:1f:29:6d:f8:5c
SNMP Community String : public
IP Header : TTL=0x40 Flags=0x40 Precedence=0x00 TOS=0x10
Default Gateway IP : 16.82.182.1
802.1q VLAN ID : Disabled
802.1q VLAN Priority : 0
RMCP+ Cipher Suites : 0,1,2,3
Cipher Suite Priv Max : OOOOXXXXXXXXXXX
: X=Cipher Suite Unused
: c=CALLBACK
: u=USER
: o=OPERATOR
: a=ADMIN
: O=OEM

[root@ist-042b087d059 ~]# ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:21:5A:4A:54:96
inet addr:16.82.185.102 Bcast:16.82.187.255 Mask:255.255.252.0
inet6 addr: fe80::221:5aff:fe4a:5496/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:614859 errors:0 dropped:0 overruns:0 frame:0
TX packets:239221 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:322169533 (307.2 MiB) TX bytes:23311805 (22.2 MiB)
Interrupt:185

1) Unable to ping this BMC IP locally or remotely.

2) Is the BMC shares an on-motherboard Ethernet port?,
a) Even on same subnet also it is not pinging.

3) Is the Main power supply shares to host and BMC card?
a) If both have separate supply and host supply is off state (down), why the BMC IP is not pinging?

Let me know your suggestion.

Thanks & Regards
Gavi
1 REPLY
Honored Contributor

Re: Error: Unable to establish LAN session

What management processor are you trying to address? If iLO2, there is no IPMI over LAN functionality, only localhost KCS interface. If you want to connect to iLO2 over the network, use SSH and the industry-standard SMASH command line protocol.