On 09.11.11 10:49, Stefan Berger wrote:
On 11/09/2011 09:38 AM, Shahar Havivi wrote:
On 09.11.11 09:20, Stefan Berger wrote:
On 11/09/2011 07:44 AM, Shahar Havivi wrote:
On 09.11.11 06:44, Stefan Berger wrote:
On 08.11.11 16:34, Stefan Berger wrote: >On 11/07/2011 04:25 AM, Shahar Havivi wrote: >>Hi, >> >>I want to limit VM traffic to a specific MAC address, ie VMs cannot >>traffic each other other then a specific gateway. >> >>I am using custom nwfilter name: isolatedprivatevlan-vdsm.xml >>located in /etc/libvirt/nwfilter/: >> >><filter name='isolatedprivatevlan-vdsm' chain='root'> >> <filterref filter='clean-traffic'/> >> <rule action='drop' direction='out' priority='500'> >> <mac match='no' dstmacaddr='$GATEWAY_MAC'/> >> </rule> >></filter> >> >Try this one -- it works in 'my' subnet: > ><filter name='isolatedprivatevlan-vdsm' chain='ipv4'> > <filterref filter='clean-traffic'/> > <rule action='drop' direction='out' priority='10'> > <mac match='no' dstmacaddr='$GATEWAY_MAC'/> > </rule> ></filter> Thanks, Now it is blocking the traffic but I can't get traffic to the gateway as well... That's odd. Can you ping the gateway from the VM? Is it typically
On 11/09/2011 04:01 AM, Shahar Havivi wrote: ping-able? Are you sure you specified the correct MAC addresses -- check with 'arp -n' on a host in the same subnet and see what it shows for the gateway (ping it if you don't see an entry).
Stefan It's working only when I remove the line <filterref filter='clean-traffic'/> from the filter... While you ping the gateway, can you re-add the above line to the filter?
Stefan its working, even when stopping the ping and re-pinging the gateway, but it stop working after I stop and started the VM.
How does the VM get its IP address, static or DHCP ? If DHCP, could you try a static IP address?
In case it doesn't work, what does 'ebtables -t nat -L' show and which IP address is assigned to the VM's interface?
Stefan static ip, the ebtables output show ip 0.0.0.0 for the VM mac address:
Bridge chain: I-vnet0-rarp, entries: 2, policy: ACCEPT -p 0x8035 -s 0:1a:4a:16:1:52 -d Broadcast --arp-op Request_Reverse --arp-ip-src 0.0.0.0 --arp-ip-dst 0.0.0.0 --arp-mac-src 0:1a:4a:16:1:52 --arp-mac-dst 0:1a:4a:16:1:52 -j ACCEPT -j DROP Bridge chain: O-vnet0-rarp, entries: 2, policy: ACCEPT -p 0x8035 -d Broadcast --arp-op Request_Reverse --arp-ip-src 0.0.0.0 --arp-ip-dst 0.0.0.0 --arp-mac-src 0:1a:4a:16:1:52 --arp-mac-dst 0:1a:4a:16:1:52 -j ACCEPT -j DROP How can I set the IP in the case?