Servers unable to connect to their own DRAC

Matthias Saou thias at
Tue Sep 16 07:05:33 CDT 2008

Matthias Saou wrote :

> Patrick_Fischer at wrote :
> > "when using a DRAC with
> > its dedicated RJ45 port and not shared on the server's NIC1, things
> > still don't work." 
> > What for example doesn't work???
> > 
> > What server model and drac model?
> Sorry for omitting so many details. This happens with PE1950, PE2950
> and DRAC5s. I've always enabled IPMI on the DRAC address (first DRAC
> configure option), which might play a role.
> What doesn't work is the following :
>  * Configure an IP address on NIC1 of a server running GNU/Linux
>  * Configure an IP address of the same network on the DRAC of the server
>  * You can ping both addresses from any other host on the network
>  * You can't ping the DRAC's IP address from the same server's GNU/Linux
> This is true for all hosts. If you have two and configure them in a
> similar way, then each of them can ping the other's DRAC IP address but
> not its own.
> People have suggested running ipmitool on the command line as a
> workaround. This doesn't work in my situation since I have a GNU/Linux
> installation doing routing, and since traffic to its DRAC flows through
> itself, no outside hosts (think remote monitoring server) can reach its
> DRAC. This is a major bummer ;-)
> I hope I've made myself a bit more clear.
> For servers with no DRACs, only the BMC, or for servers where the DRAC
> is configured to share NIC1, I can understand this to be somewhat
> normal since both MAC addresses share the same physical interface (etc.
> see Fred's answer from more details). But what I've outlined happens
> when using the DRAC's dedicated RJ45 port.

Seems like no one has a clue about this. But as I've seen this on *ALL*
PowerEdge servers on which I've used BMCs and DRACs, I'd be really
surprised if I were the only one to experience the problem.

Has no one else ever bumped into this issue?

It's an easy test on any PowerEdge with a BMC or DRAC IP address
configured :
 * Log into your GNU/Linux installation on the server
 * Try to ping the BMC or DRAC IP address of the server itself

If it works, then I'd love to know with which settings or tricks!


Clean custom Red Hat Linux rpm packages :
Fedora release 9 (Sulphur) - Linux kernel
Load : 0.08 0.14 0.14

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