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February 10th, 2006 13:00

BMC access for PE850 only over LAN?

I just got the PowerEdge 850 with BMC IPMI over LAN functionality. Does the BMC work only in a LAN enviroment, using private IPs?

I tested it to work well in my home network, but once I got the system set up at the datacentre, and the BMC configured to use a public IP, as well as my provider's assigned netmask and gateway, I found that I was unable to access it from home using the supplied IPMI Shell CLI program.

Would it be the same case for the optional DRAC4 card, or would that be accessible over WAN as well?

2 Posts

March 5th, 2006 12:00

>I just got the PowerEdge 850 with BMC IPMI over LAN functionality.
>Does the BMC work only in a LAN enviroment, using private IPs?
The BMC LAN functionality does not restrict this in any way. Your choice of IP address, mask, network setup, router, and firewalls can. Port 623 is used by the BMC for IPMI.

>I tested it to work well in my home network, but once I got the system set
>up at the datacentre, and the BMC configured to use a public IP, as well as
>my provider's assigned netmask and gateway, I found that I was unable to
>access it from home using the supplied IPMI Shell CLI program.
How did you pick the IP address for the BMC? The current word is that the IP address needs to be unique for the BMC and your OS.
 
>Would it be the same case for the optional DRAC4 card, or would that
>be accessible over WAN as well?
Network, router, or firewall setup can block most anything so any problems along that line will still need to be resolved. DRAC4 does offer a bunch of good features that could be good for your needs. Take a close look at console redirection and virtual media.

2 Posts

March 5th, 2006 13:00

My firewall blocks all ports and services except for a whitelist. I didn't think of that as the OS and BMC were using separate IPs, and I forgot they were using the same NIC port.

Have you any experience with the DRAC4 card? For most cases, I only require the remote reboot, turn on/shut down and basic system status functions, so the SGD$300+ DRAC4 option really does seems like an overkill.

Besides, I chose the 2xPCIe riser card option instead of the PCI-X riser card initially, so that might mean a further SGD$80+ on top of that. I'd still get the DRAC4 card if it is useful, but I'm not too familiar with its added functionality.

Able to give a brief summary of its best features? Especially with regards to the virtual media function: Does that mean I can do a full OS reinstall from home, using DVDs and CDs from my home PC?

2 Posts

March 5th, 2006 22:00

Virtual media allows you to call up the DRAC 4 web interface and connect to a CDROM or floppy on the workstation as if it were on the server. Of course when dealing with an OS install some driver probe might do something unexpected. I will check on who may have actually done this and see what the results were.

The remote console on the DRAC is another feature. You get a server OS independent remote video/keyboard.

The DRAC 4 user guide is found here:

<ADMIN NOTE: Broken link has been removed from this post by Dell>

It will describe the DRAC 4 features more accurately than off the top of my head. I can add or find clarification for any questions.

Message Edited by alfman850 on 03-05-2006 06:51 PM

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