Cannot migrate lxc to other nodes in cluster

[GHMC]

I want to migrate a lxc to another proxmox node in the same cluster. I get the following error:

could not get migration ip: no IP address configured on local node for network 'fc00::81/29'
TASK ERROR: command '/usr/bin/ssh -e none -o 'BatchMode=yes' -o 'HostKeyAlias=proxmox2' -o 'UserKnownHostsFile=/etc/pve/nodes/proxmox2/ssh_known_hosts' -o 'GlobalKnownHostsFile=none' root@192.168.1.31 pvecm mtunnel -migration_network fc00::81/29 -get_migration_ip' failed: exit code 255

I am not using ipv6.

I am not sure how to proceed and fix this.

 

[UdoB]

could not get migration ip: no IP address configured on local node for network 'fc00::81/29'

I am not using ipv6.

Well..., PVE believes you do

You need to tell PVE to use a "classic" IPv4 configuration:

• https://pve.proxmox.com/wiki/Network_Configuration#_default_configuration_using_a_bridge
• https://pve.proxmox.com/pve-docs/pve-admin-guide.html#sysadmin_network_configuration

You may also read my post from today: https://forum.proxmox.com/threads/f...can-not-load-the-web-gui-in-a-browser.160091/

 

[GHMC]

Thanks for replying. I would very much like to, but can't see where.

This is my /etc/network/interfaces:

auto lo
iface lo inet loopback

iface enp2s0f0np0 inet manual

auto vmbr0
iface vmbr0 inet static
        address 192.168.1.30/24
        gateway 192.168.1.1
        bridge-ports enp2s0f0np0
        bridge-stp off
        bridge-fd 0

iface enp87s0 inet manual

iface enp89s0 inet manual

iface enp2s0f1np1 inet manual

iface wlp90s0 inet manual

source /etc/network/interfaces.d/*

 

[UdoB]

The "interfaces" looks fine - without knowing more of the technical context. What gives the following commands on the .30 node?

• ip address show # currently active IP addresses on one NODE
• ip route show # currently active routing table on one NODE
• ip link show # currently active links on one NODE
• cat /etc/network/interfaces # configuration of the network and/or ifquery -a for comparison from one NODE

And of course you should compare the output with the .31 node and look for differences.

 

[GHMC]

I have found the problem. It wasn't in the networking part. I have played with IPv6 networking and migration settings before and forgot to change the migration settings on Datacenter level back to the IPv4 network.

Thanks for helping!