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m47h4r

Guest

[solved] Setting up bridge for vm interaction (KVM)

I am trying to setup a virtual oVirt setup to learn virtualization management and all that glory Now i am following this article Networking - KVM in the Public Bridge section since i found out that that's what i want to be able to interact with my VM and have all the networking functionalities. Now my laptop's wireless card does not support bridging so i use ethernet cable with a USB adapter that came with my laptop. I create the bridge interface and add my physical interface to it like this:

ip link add br0 type bridge
ip link set enp0s20u1 master br0

But when i want to run this command:

ip tuntap add enp0s20u1 mode tap user `whoami`

I get the error: ioctl(TUNSETIFF): Device or resource busy kvm bridge

I have no clue what to do. what do you guys think?

SOLUTION: Since i am using network manager, i can't really create bridge using ip. Instead i used nmcli to create the bridge and then plugged it to virt-manager and now the connection is fine (after configuring guest vm).

Last edited by m47h4r (2019-05-30 18:20:41)