0

I have a Supermicro server board that powers on but wont post.

I have connected a LAN cable to the dedicated IPMI LAN port on the board and am trying to discover what the IPMI IP address of the board is.

I have tried scanning the local network via:

nmap -n -sP 192.168.1.1/24

However I as the server is not connected to anything other than a laptop via IPMI it does not know it's on the local network, and I have seen SuperMicro IPMI addresses around 172.17.x.x.

I have not been able to find a list of all possible IPMI addresses to narrow down. How can I scan the entire 172.x.x.x address range using nmap? or any other ideas for finding this server via direct connection to an IPMI port.

6
  • I don't understand what you're saying. Is the server IPMI port connected to the network or not?
    – joeqwerty
    May 31 '20 at 2:39
  • IPMI port is connected to a laptop. I am running nmap on the laptop to find the server. May 31 '20 at 2:46
  • 1
    Give your laptop an ip address in the range you want to scan, then scan it.
    – joeqwerty
    May 31 '20 at 2:49
  • No luck scanning the 172.16.x.x network after setting laptop address. May be the board isn't posting an IPMI address May 31 '20 at 3:46
  • What subnet mask did you give your laptop? Why do you need IPMI? If the server won't post chances are it's dead May 31 '20 at 5:01
0

I connected a laptop directly to the IPMI port on the server baord, then I used wireshark on the laptop to find the IPMI address (ARP broadcast by MS_NLB Phys Server) (NB turning off wifi first to quieten the logs). Then I set the lap to use the same Class B 172.16.12.xx based network as @joeqwerty helpfully pointed out by editing netplan config (eg see https://danielmiessler.com/study/manually-set-ip-linux/).

Then I could ping the IPMI address from the laptop and browse to the login screen at https://172.16.12.xx

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.