Hello, I was/am trying to setup packet filtering on a virtualisation host and couldnt get it to work and was hoping for some pointers. Heres the setup: Said host has: eth0 - the physical interface, no address assigned br0 - the bridge interface, has IP 10.0.0.1 and gateway and default route assigned to it veth0 - the virtual interface for one of the VMs, has IP 192.168.0.1 both eth0 and veth0 are added to the bridge, the networking setup is functional, however I seem to be unable to filter traffic to the VM with iptables. Heres what Ive tried: iptables -A FORWARD -m physdev --physdev-in eth0 --physdev-out veth0 -p tcp --dport 22 However, this only results in a /var/log/messages entry: kernel: physdev match: using --physdev-out in the OUTPUT, FORWARD and POSTROUTING chains for non-bridged traffic is not supported anymore. Since this _IS_ in fact bridged traffic, I dont see why I would get this error? Maybe Im looking at it the completely wrong way and physdev isnt even the way to go here anymore, I dont know. Any kind of help is greatly appreciated. Oh, I figured I should add the following information: Kernel is Linux 2.6.32-11, running Debian stable (6.0.4) /etc/sysctl.conf contains these: net.ipv4.ip_forward=1 net.ipv4.conf.all.rp_filter=1 net.ipv4.icmp_echo_ignore_broadcasts=1 net.ipv6.conf.all.proxy_ndp=1 net.bridge.bridge-nf-call-arptables = 1 net.bridge.bridge-nf-call-ip6tables = 1 net.bridge.bridge-nf-call-iptables = 1 iptables -I FORWARD -j REJECT -p tcp -i veth0 --dport 22 didnt stop ssh from working either Regards, Marc -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
