I have some questions regarding the way that networking is handled via qemu/kvm+libvirt -- my apologies in advance if this is not the proper mailing list for such a question.
I am trying to determine how exactly I can manipulate traffic from a _guest's_ NIC using iptables on the _host_. On the host, there is a bridged virtual NIC that corresponds to the guest's NIC. That interface does not have an IP setup on it on the host, however within the vm itself the IP is configured and everything works as expected.
During my testing, I've seemingly determined that traffic from the vm does NOT traverse iptables on the host, but I _can_ in fact see the traffic via tcpdump on the host. This seems odd to me, unless the traffic is passed on during interaction with the kernel, and thus never actually reaches iptables. I've gone as far as trying to log via iptables any and all traffic traversing the guest's interface on the host, but to no avail (iptables does not see any traffic from the guest's NIC on the host).
Is this the way it's supposed to work? And if so, is there any way I can do IP/port redirection silently on the _host_?
Thanks in advance for any insight that anyone can share :) -- Andre Goree -=-=-=-=-=- Email - andre at drenet.net Website - http://www.drenet.net PGP key - http://www.drenet.net/pubkey.txt -=-=-=-=-=- _______________________________________________ libvirt-users mailing list libvirt-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvirt-users
