[Bug 616064] Re: Broken networking in kvm guests

[Brian Fallik]

Serge,

Some interesting updates.

First, with both guests running (bridged mode with br0) I ran 'brctl stp
br0 on'.  Everything still worked fine.

Next I moved one of the guests from bridged mode back to virtual net (using virbr0).  I was immediately able to reproduce the connection reset problem.  brctl says:
bridge name	bridge id		STP enabled	interfaces
br0		8000.001a64b33b10	yes		eth0
							vnet1
virbr0		8000.a6fdf11232ef	yes		vnet0
so clearly virbr0 is using stp.

Lastly, I've attached the output of 'iptables -L' during this mixed-mode
configuration.  The firewall configurations are the same.

Are there any other tests you'd like me to run?

brian


** Attachment added: "iptables -L (take 2)"
   https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/616064/+attachment/1521544/+files/iptables_L-2.txt

-- 
Broken networking in kvm guests
https://bugs.launchpad.net/bugs/616064
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to qemu-kvm in ubuntu.