I live migrate a openstack vm instance using virsh migrate --live instance-00000008 qemu+tcp://nova#az02hci02:16509/system --copy-storage-all command. This migration is live migrtation without shared storage.
Migration is success and instance's state is running in destination host. But migrated instance has no ip. And destination host seems to have no network.
virsh net-list
Name State Autostart Persistent
----------------------------------------------------------
The vm instance's interface and MAC address is:
virsh domiflist instance-00000008
Interface Type Source Model MAC
-------------------------------------------------------
tapd8280f0e-52 bridge qbrd8280f0e-52 virtio fa:16:3e:33:2b:82
How can i enter this vm instance without ip?
The virsh net-list command is reporting on libvirt virtual networks.
The virsh domiflist command, however, is reporting type=bridge which means this guest is not connected to a libvirt virtual network. Instead the guest is bridged to a physical NIC device. As such it will be getting an IP address assigned by whatever DHCP server is on your LAN. This is good because it means during migration nothing should have changed for your guest. Whatever IP address it had before the migration should be the same IP address after the migration.
You can enter into VM using virsh console vmname
Related
I am running Devstack on my machine and i would like to know if it is possible to ping an instance from Host. The default external network of Devstack is 172.24.4.0/24 and br-ex on Host has the IP 172.24.4.1. I launch an instance using the internal network of Devstack (192.168.233.0/24) and the instance gets the IP 192.168.233.100. My Host's IP is 192.168.1.10. Is there a way to ping 192.168.233.100 from my Host? Another thing i thought is to boot up a VM directly to the external network (172.24.4.0/24) but the VM does not boot up correctly. I can only use that network for associating floating IP's.
I have edited the security group and i have allowed ICMP and SSH, so this is not a problem.
In GNS3, I have configured the DHCP pool on the router R1, and I have a vmware VM (Ubuntu 16.04), another router R2 and VPCs are connected to R1. The R2 and VPC can get their IP address without a problem, however, the vmwareVM can't receive the IP address.
Note that:
the station is configured as host-only
the connect a host virtual adapter to this network is checked
the VMware Workstation DHCP Server is turned OFF
No configuration on my local PC Network Connections (DHCP)
Once I type the command dhclient eth0 to get the IP address from dhcp, it freezes and returns nothing and no IP address is assigned.
I want to know what is the problem that causes that issue and how to solve it.
Thank you.
My mistake was in the configuration of my VMware network adapter (VMnet2) in my network adapter in my host.
so in order to get the IP address from the DHCP router: I did the following steps:
Create a virtual network (VMnet2) in the virtual network editor
of VMware.
I checked the "Host-only" option
I checked the
"connect a host virtual adapter to this network" option
Uncheck the "use local DHCP service to distribute IP address to VMs".
Do not change the default configuration of the VMnet from your
network connexion options.
I hope that will help someone has the same issue as me
I am running proxmox 4 with around 10 KVM and 14LXC.
I can configure ips and network from web GUI for LXC container.
I want to configure the Network interface For KVM without accessing the VM.
Is is possible to configure Network interface without accessing the VM.
As far as I know you can't configure the IP address in proxmox for a KVM vm (only for the lxc container you can define the ip address). For a KVM vm you can configure if the network connection is in Bridged mode or NAT.
For LXC containers you can use the pct command to set network for the container. More info about that on the Proxmox WIKI (scroll down to the Network section) - https://pve.proxmox.com/wiki/Linux_Container
What you could do for KVM would be to use a local DHCP server (you can install one on your proxmox if you want (apt-get install isc-dhcp-server). You have to define an ip address pool that will be assigned to your vms by the dhcp server.
Then configure the kvm machine using: qm command
qm set vmid options
From a man qm you discover this:
-net[n] [model=]<enum> [,bridge=<bridge>] [,firewall=<1|0>] [,link_down=<1|0>] [,macaddr=<XX:XX:XX:XX:XX:XX>] [,queues=<integer>]
[,rate=<number>] [,tag=<integer>] [,trunks=<vlanid[;vlanid...]>] [,<model>=<macaddr>]
So basically you can define the network for your kvm vm, say if it's bridged, set a specific mac address for that card.
If you want to add a specific ip to that vm you can do it based on its mac address (you have to configure in the dhcp server that a specific ip address is assigned to the desired mac address).
I have Windows 10 as host with a Manjaro installation as Guest on Virtualbox.
I have set a Debian server on another house with ssh installed. I have setup a dyndns on Debian's network so I can access it remotely.
For example..
From address 12.34.56.78 I ssh to foo.dyndns.org:1234. This port redirects me to 192.168.1.5:22 always as this is my Debian machine and the connection is established. I am able to do this from Windows 10 as well as my android and any other device in 12.34.56.78 or by 3G.
But..
When I try to do this
$ ssh foo.dyndns.org:1234
from the Manjaro Guest in Virtualbox I get the following error:
ssh: Could not resolve hostname foo.dyndns.org:1234: Name or service not known
So I did ifconfig and I saw my inet address was 10.0.2.15. I changed virtualbox's network adapter from NAT to Bridged so I can get a lan ip and I got the host's ip, 192.168.2.4. So I gave it another try and still didn't work.
Also, if i try to connect from vm to server while I'm in the same network
$ ssh user#192.168.2.5:22
it works. In this case virtualbox's network adapter was NAT.
This command works if I try from my android (connectbot).
I can connect the same way from PuTTY from Windows.
So my questions are:
Can it be done?
If so, how? (and why?)
Can a VBox Guest get lan ip that's not the same as the host's?
Is there any more information I should provide?
I have searched for a couple of days in here and on google and all I found where solutions on how someone can ssh INTO a vm. No one (from what I saw) asked the opposite.
Checking manual page for ssh reveals the format of command-line options:
ssh [...] [-p port] [...] [user#]hostnamessh
This simply describes, that you need to change
ssh foo.dyndns.org:1234
to
ssh -p 1234 foo.dyndns.org
if the domain resolves correctly to the ip address.
I have installed MS Loop-back adapter and have given it a static IP: 10.10.10.9
my laptop is configured as 10.10.10.30 , and my gateway is 10.10.10.1
i can ping the loop-back NIC from my laptop, but not from any other machine on the LAN. i am trying to beat the 65k port limitation by seeing if i can have virtual IP addresses on one machine and each can then give me 65k ports
thanks.
By very definition, you CANNOT talk to a loopback adapter from any other machine but your own.
If on Linux, you could bridge it to a physical adapter, such as eth0, but why would you want to do that?
Take a look here for setting up IP alias on Windows (disclaimer - I don't own any windows machines, so can't really verify this).
You can ping your Loopback interface from LAN by installing Remote and Routing Access role on the server. After installing the R&S role on the server , configure LAN routing feature. It will start pinging from LAN. I have done this practically in my environment.