network mirror

[naklow88]

I want to mirror all network data of a vm on the same physical server to another vm. How can I do it?

 

[bobmc]

So do you mean you want to mirror all the network traffic to/from one vm to another vm?

What is your use case?

 

[naklow88]

So do you mean you want to mirror all the network traffic to/from one vm to another vm?

What is your use case?

exactly. A switchboard is installed in a vm. We want to forward all inbound and outbound traffic to it to another vm.

 

[bobmc]

I have not used it, but I believe you need port mirroring

This might help you get started
https://arthurchiao.art/blog/traffic-mirror-with-ovs/

 

[naklow88]

Over the physical port described here? Isn't there a simpler method to just mirror virtual ethernet?

for example;

VM1 eth0 miror to VM2 eth0

 

[spirit]

is your 2 vms on the same physical host? bridge or ovs ?

 

[naklow88]

is your 2 vms on the same physical host? bridge or ovs ?

yes on the same physical.

 

[spirit]

maybe, an easy way could be use to daemonlogger software

apt-get install daemonlogger
daemonlogger -i tap<vmid>i<ifacenumber> -o tap<vmid>i<ifacenumber>
[CODE]

ex:

daemonlogger -i tap100i0 -o tap101i0