1

I've created a virtual machine (Centos 6.0) using QEMU/KVM, which is also running on a Centos 6.0. The virtual machine is configured to have two NICs. The first NIC is using a bridged network (eth0 of the host) and the second NIC is also using a bridged network (eth1). The interface eth1 of the host is receiving mirrored traffic from a cisco switch. When I do a tcpdump -i eth1 from the host I can see the traffic. I would expect to see the same traffic in my virtual machine (because of the bridge) but it is not the case.

Is there a special config that I'm not aware of?

2

I finally found a solution to my problem. Setting the ageingtime of the bridge to 0 will make your bridge acting like a hub and you'll see the mirrored traffic from inside your VM (or any virtual machines connected to that bridge)

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.