Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

ESXi host IP Change

Posted on 2013-11-25
8
Medium Priority
?
2,340 Views
Last Modified: 2015-01-29
Hello EE,

We are on Vmware 5.1 and moving our Virtual hardware to another branch office that is on a 10.110.x.x network.  Currently we are on 10.10.x.x.  My question is:
1. Change IP on ESXi host before move (while can SSH into the unit)
2. After move (how can I access after)
3. what is the back door method of changing IPs or options.
0
Comment
Question by:bergquistcompany
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
8 Comments
 
LVL 17

Expert Comment

by:James H
ID: 39676603
What are the host servers running on? Dell? HP?
Usually you have options such as iDRAC (Dell) and ILO (HP) for remote access to the server itself. From there you will have console access and make any changes you need.
0
 
LVL 123
ID: 39676851
You will need physical access to the console, or technology that allows access to the console.

You could add another management network?

e.g. so you have two management networks and remove when you are done.
0
 
LVL 10

Expert Comment

by:Mohammed Rahman
ID: 39676924
1)      As you are aware of the IP address to be assigned to host, you can change the IP before moving to branch office. Once you change the IP, you will lose connection with hosts. Once you are done changing all IPs to the new range/subnet, you can probably keep your vSphere Client/vCenter in the same network and test whether hosts are reachable.
2)      If you plan to change the IP after you move your hosts, get the system with vSphere client/vCenter in range 10.10.x.x and it will allow you to SSH to hosts. Change IPs of all hosts to 10.110.x.x one after the other and then change the IP of vCenter/vSphere back to 10.110.x.x range.
In case you do not have an option to change the IP of vCenter/vSphere in branch office to 10.10.x.x for time being; follow step 1 above. And, if no issues, follow step 2.

Also, you can add a vmknicX (10.110.x.x) to your existing vSwitch (used for SSH) and that should allow you to establish communication between branch office’s vCenter/vSphere and these ESX hosts. (No need to change IPs here and there). Once you gain access to ESX hosts via branch, you can delete the old vmknicX (10.10.x.x)
0
How Blockchain Is Impacting Every Industry

Blockchain expert Alex Tapscott talks to Acronis VP Frank Jablonski about this revolutionary technology and how it's making inroads into other industries and facets of everyday life.

 

Author Comment

by:bergquistcompany
ID: 39678123
The servers are Cisco UCS blades.  

I can't change it now or I will not have access to it anymore with our subnetting.

Thus I would change the hosts to the 10.110.x.x via SSH before moving them and then from the 10.10.x.x vsphere server change that to 10.110.x.x and move?
0
 
LVL 123
ID: 39678142
The Supported method to change IP Address, is from vSphere Client/Web Client or Console!
0
 

Author Comment

by:bergquistcompany
ID: 39690725
In vSphere would it be under the host, configure, networking and properties change it there?
0
 
LVL 123

Accepted Solution

by:
Andrew Hancock (VMware vExpert / EE MVE^2) earned 2000 total points
ID: 39690868
That's correct, or from the Host Console Menu.
0
 
LVL 2

Expert Comment

by:matt1237
ID: 40577748
Just so you know (I didn't see it mentioned here), you can access the Direct Console User Interface (DCUI) remotely via SSH at least in ESXi 5.5 and change both the IP Address, Net Mask, and Gateway all at one time.  So as long as you're positive you are entering correct info, enter it and apply changes which will terminate your current SSH connection which is no big deal, you just log in with the newly applied IP address and you're good to go. In short do these steps:

In vSphere Client go Configuration > Security Profile, then click Properties and start the services ESXi Shell, SSH, and Direct Console UI
Next use PuTTY or whatever to connect to your ESXi host via SSH with an Administrator level user.
Finally after logging in, enter dcui at the command propmt and you will have access to the Direct Console User Interface as if you were sitting right in front of it. Now you can make your changes. You can press CTRL+C to exit the dcui interface at any time and be back at the SSH command prompt.

0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

When converting a physical machine to a virtual machine using VMware vCenter Converter Standalone or vCenter Converter Enterprise, if an adapter type is not selected during the initial customization the resulting virtual machine may contain an IDE d…
In this article, I will show you HOW TO: Suppress Configuration Issues and Warnings Alert displayed in Summary status for ESXi 6.5 after enabling SSH or ESXi Shell.
Teach the user how to configure vSphere Replication and how to protect and recover VMs Open vSphere Web Client: Verify vsphere Replication is enabled: Enable vSphere Replication for a virtual machine: Verify replicated VM is created: Recover replica…
This tutorial will walk an individual through the steps necessary to enable the VMware\Hyper-V licensed feature of Backup Exec 2012. In addition, how to add a VMware server and configure a backup job. The first step is to acquire the necessary licen…

715 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question