IPMI on localhost

Kilian CAVALOTTI kilian.cavalotti at lip6.fr
Wed Mar 21 10:32:35 CST 2007


Hi all,

I have a couple PE1950 for which I configured BMCs for IPMI access. 
Everything works perfectly when I try to access hostA's BMC from hostB. 
But I cannot access hostA's BMC from hostA itself.

hostA's network setup is the following:
  - BMC use the primary network interface connector
  - BMC IP is 10.5.0.1/255.0.0.0
  - OS eth0 IP is 10.0.0.1/255.0.0.0

From, hostB, I can ping 10.5.0.1 and 10.0.0.1 without any problem, and I 
can use: 
ipmitool -I lanplus -U user -P passwrod -H 10.5.0.1 chassis power status
to get power status information. But from hostA itself, I cannot ping 
10.5.0.1 (its own BMC's IP). I even can't get the BMC MAC address, neither 
arping'ing it, so it's probably not a netmask issue.

It's quite understandable, since from the OS standpoint, 10.5.0.1 doesn't 
exists. But I was wondering if there was a way to circumvent this problem. 
I guess it's related to the fact that the BMC and the OS share the same 
physical interface, so the packet would have to go out the OS interface 
and back in the BMC, which is the same, but I don't really know where to 
go from that point.

If anyone have an idea, it would help lot.


---------------------------------------------------------------------------
# omreport chassis nics index=1
Network Interface Information

Interface: Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet

Description           : Broadcom Corporation NetXtreme II BCM5708 Gigabit 
Ethernet
Vendor                : Broadcom Corporation
Current MAC Address   : 00:15:C5:EE:53:40
IP Address            : 10.0.50.1
Subnet Mask           : 255.0.0.0
Connection Status     : Connected
IRQ Used by Interface : 225

# omreport chassis remoteaccess
Remote Access Information

BMC
Attribute : BMC Name
Value     : BMC Remote Access Service Point

Attribute : IPMI Version
Value     : 2.0

Attribute : System GUID
Value     : 3143424f-c0c3-5180-5610-005a4c4c4544

Attribute : Number of Possible Active Sessions
Value     : 5

Attribute : Number of Current Active Sessions
Value     : 0

Attribute : LAN Enabled
Value     : Yes

Attribute : SOL Enabled
Value     : Yes

Attribute : IP Address Source
Value     : Static Address

Attribute : IP Address
Value     : 10.5.50.1

Attribute : IP Subnet
Value     : 255.0.0.0

Attribute : IP Gateway
Value     : 10.5.0.1

Attribute : MAC Address
Value     : 0015C5EE5344
---------------------------------------------------------------------------

Regards,
-- 
Kilian



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