similar to: East-west traffic network filter

On Fri, Jun 29, 2018 at 3:40 AM Thiago Oliveira <cpv.thiago@gmail.com> wrote: > Hi Ales, > > I would like to prevent the guests from different subnets start a > communication. In other words I have the subnet 192.168.1.0/24 and > 192.168.2.0/24 and the guests from 192.168.1.0/24 cannot reach/talk with > guests on 192.168.2.0/24 at the same host. Is this possible using a

Hi Ales, I would like to prevent the guests from different subnets start a communication. In other words I have the subnet 192.168.1.0/24 and 192.168.2.0/24 and the guests from 192.168.1.0/24 cannot reach/talk with guests on 192.168.2.0/24 at the same host. Is this possible using a filter like yours? Thank you. Thiago. Em qui, 28 de jun de 2018 às 09:37, Ales Musil <amusil@redhat.com>

On Thu, Jun 28, 2018 at 10:18:57AM +0200, Ales Musil wrote: > Hello, > > I would like to make filter that allows communication only between > specified VMs. Those VMs should be specified by their MAC address. The > filter should extend clean-traffic but I was not able to get it working > with that reference. I have came up with modified clean-traffic which works > fine [1].

I run samba-3 as PDC for a small domain with 4 clients. User A should be allowed to login on all client machines, while logins for the privileged user B should be restricted to 2 machines for security reasons. Any ideas how to manage that? Suggestions for further reading would be highly appreciated? Hans Musil

Hi, I am trying to prevent my qemu guest machines from sending IPv6 router advertisements over their network device. To that end, I have written this filter definition: <filter name='no-ipv6-router-advertisement' chain='root' priority='-690'> <rule action='drop' direction='out' priority='600'> <icmpv6 type='134'/>

I'm trying to accomplish what I had hoped would be a fairly simple filtering of traffic to my VMs, but I'm hitting a snag. The VMs are allowing traffic when I wouldn't expect them to. Host and Guest are both running the same platform: Ubuntu 12.04.4 LTS 0.9.8-2ubuntu17.19 I have a basic bridge enabled on the host: brctl addbr brdg brctl addif brdg eth1 ip link set brdg up The host

Hello, I have a nwfilter that I'm using to ensure that libvirt domains can't spoof IPv6 traffic. It looks like this: <filter name='no-ipv6-spoofing' chain='ipv6-ip' priority='-710'> <rule action='return' direction='out' priority='500'> <ipv6 srcipaddr='$IPV6' srcipmask='$IPV6MASK'/> </rule>

DeaR all, I am using mob() for model based partitioning, with a dichotomous variable (participant's correct/incorrect response to a test item) regressed onto a continuous predictor related to a given property of the test item. Although this variable is continuous, the value of this variable for many items in this particular analysis is 0. The partitioning criterion is self-reported ability in

Hi there. I have configured kvm domain (rhel6.4) with ethernet bridged over macvtap, and found no filtration applied except mac. 'virsh' just silently ignoring attributes 'filterref' and 'ip address' in different formats. No error on validate stage. Config examples: ... <interface type='direct'> <mac address='52:54:00:31:ae:1a'/>

https://bugzilla.samba.org/show_bug.cgi?id=5020 Summary: hang using RSYNC_CONNECT_PROG Product: rsync Version: 3.0.0 Platform: All OS/Version: Linux Status: NEW Severity: normal Priority: P3 Component: core AssignedTo: wayned@samba.org ReportedBy: Matt_Domsch@dell.com QAContact:

Hello, I defined a vm with filterref like: <filterref filter='clean-traffic'> <parameter name='IP' value='192.168.1.161'/> </filterref> and now I need to add another IP parameter for this vm,is there any way to achieve this? thanks.

To take advantage of the filters, is it as simple as adding these couple of lines in a guest's xml file like the example from https://libvirt.org/formatnwfilter.html#nwfconcepts ? <devices> <interface type='bridge'> <mac address='00:16:3e:5d:c7:9e'/> <filterref filter='clean-traffic'> <parameter name='IP'

Hello, I'm recently stumbled over the libvirt network filter capabilities and got pretty excited. Unfortunately I'm not able to get the the "clean-traffic" filterset working. I'm using a freshly installed Debian Stretch with libvirt, qemu and KVM. My config snippet looks as follows: sudo virsh edit <VM> [...] <interface type='bridge'> <mac

Hi, Can anyone please help with the following: I have a running instance with interface <interface type='bridge'> <mac address='fa:16:3e:ba:a4:67'/> <source bridge='br100/> <target dev='vnet0'/> <model type='virtio'/> <filterref filter='nova-instance-instance-00000001-fa163ebaa467'/>

On 05/27/2014 02:46 AM, Brian Rak wrote: > Make sure you have: > > /proc/sys/net/bridge/bridge-nf-call-iptables = 1 That doesn't make sense. bridge-nf-call-iptables controls whether or not traffic going across a Linux host bridge device will be sent through iptables, but the rules created by nwfilter are applied to the "vnetX" tap devices that connect the guest to the

On Tue, Jun 06, 2017 at 11:37:27PM -0300, Thiago Oliveira wrote: > Daniel, > > Are you talking about XML? If yes, could please show us an example? <domain> ... <devices> .... <interface type='bridge'> <mac address='00:16:3e:5d:c7:9e'/> <filterref filter='clean-traffic'/> </interface> ....

After we upgraded to 1.2.12, we've been having issues with libvirt... it complains that our formerly valid guest definitions are now invalid: error: Failed to start domain XXXX error: internal error: Cannot instantiate filter due to unresolvable variables or unavailable list elements: DHCPSERVER We looked into this, and found that it's the XML validation that's failing: # xmllint

> > No, I don't believe we have a way to update the parameters. > > Hi, Daniel :-), it would be very nice if there is a way to update filterref , :-) thanks.

Hi, in oVirt we have come across issue with a missing vnet interface (Original bug report [0]). This happened once in a huge batch of migrations e.g 2 failed out of 1200 and we came to conclusion that this is happening somewhere out of our control as libvirt reports: 2020-05-17 02:34:11,530+0000 ERROR (migsrc/623f6cc1) [virt.vm] (vmId='623f6cc1-d49f-43a4-8170-b5fec01f2897') operation

I try to add some rules to filtering network, example <filterref filter='clean-traffic'/> or <filterref filter='no-ip-spoofing'/> and vm not starting with message virsh start freebsd8.2 error: Failed to start domain freebsd8.2 error: internal error IP parameter must be given since libvirt was not compiled with IP address learning support what do I do wrong?