The name it got, BMC_DHCP may provide a hint. Do you have a BMC product such as BMC MainView SecureHMC running somewhere, perhaps being tested ?
Jonathan Eshel -----Message d'origine----- De : Tony Thigpen [mailto:t...@vse2pdf.com] Envoyé : samedi 21 novembre 2015 06:00 Objet : Strange HMC issue Background: HMC software version 2.11.1 connected to a z10. The HMC is connected to two networks. The first is a small private network with just the laptops in the z10 and the HMC. No other HMCs or other CPUs. The second network is a local network with several items on it, including other HMCs. This network is behind a VPN firewall and is used to access the web services on the HMC. Both interfaces have hard-coded IP addresses. Today we noticed something strange. We had a DHCP address assigned to a box we did not know about. Except for 3 workstations on the network, all other boxes have hard-coded IP addresses. In the DHCP assigned addresses table, the box had provided a name of BMC_DHCP. After a bunch of testing, we isolated the assigned address to the HMC, but the address does not show up in any of the HMC panels that show IP addresses. Items: 1) When we ping the HMC using the hard-coded address, the response is under 3.0ms. 2) When we ping the DHCP assigned address, the response is 10x longer, in the 30.0ms range. 3) The arp tables on another PC show both addresses having the same nic address. 4) The HMC can ping it's own hard-coded address, but it can not ping the DHCP assigned address. 5) We have other CPUs and other HMCs. None of the others are doing the same thing. (z900 though z10). 6) This HMC has the latest software version of all the HMCs. 7) nMap (port mapping tool) says that there are no ports open at this DHCP assigned address. Thoughts on what is happening? Anybody else seeing the same thing? -- Tony Thigpen ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
