Score:0

Unable to swap old server with new one as the switch it's plugged into is unaccessible

cn flag

Hopefully the title covers this question but, it's pretty straightforward.

At work, we have an old DMZ Server we'd like to replace with a newer model. Unfortunately, when we were ready for the swap, the NIC didn't light up (no link lights). So we plugged in the old DMZ Server and link lights to that server were re-established.

  • we now know it's most likely on sticky Mac.

We attempted to contact the sticker that points to a local network help desk for assistance but, they claim they dont manage it and have given us the run-around since then. Just been back and forth of "we don't manage it, not out switch".

Fine, we decided to try and spoof the MAC through the registry, with no luck. It shows that it has changed, but the only thing that hasn't is the virtual nic.

Has anyone ever had to deal with a mess like this?

  • Attempted to spoof MAC; no luck. We were advised to do so.
  • Attempted to access the switch since we have direct access (physically) to it.

Can anyone suggest what options we have in this scenario? What would you all do?

The switch is a Cisco Switch 3650

Pardon the hefty paragraph, but thank you for taking the time to read it.

in flag
[reset the admin password on the switch](https://community.cisco.com/t5/other-network-architecture/urgent-password-recovery-with-the-3650/td-p/2629200)
Abraham Zinala avatar
cn flag
@Gerald, we saw that as well on our Google search dive. Just afraid of it wiping out the configs. Our NetOps teams isn't any help either.
cn flag
`spoof the MAC through the registry, with no luck. It shows that it has changed, but the only thing that hasn't is the virtual nic.` Not a lot of detail there. Most people use Set-NetAdapter.
Abraham Zinala avatar
cn flag
@Greg, wasn't aware that was a cmdlet. I'll give it a go come Monday. Tried changing the CIM instance property as well but, it didn't change lol
in flag
At some point you will have to do it. You might just as well so it now.
John Mahowald avatar
cn flag
Regarding length of your question, that is actually the proper length to include necessary details. Problem description, make and model of affected hosts, level of access you have, and what you attempted. Could use a an edit with bit more about MAC spoofing on the Windows box, per Greg's comment.
mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.