Can not see VM packets using Netfilter

Can not see VM packets using Netfilter

[王可 王]

Hi all,

I’m recently developing a simple program using netfilter and I’m having a tricky problem. My program is mainly to log the src and dst ip address of all the packets. This program is run in the host machine. I have several virtual machines on that host machine. 

The problem is, I can not capture the packets generated or destined at the VMs. All the VMs use bridging network to connect.

Can anyone help me? A lot of thanks!

Best,

Ke

Re: Can not see VM packets using Netfilter

[Smart Weblications GmbH - Florian Wiessner]

Hi,

Am 02.12.2014 06:48, schrieb 王可 王:
> Hi all,
> 
> I’m recently developing a simple program using netfilter and I’m having a tricky problem. My program is mainly to log the src and dst ip address of all the packets. This program is run in the host machine. I have several virtual machines on that host machine. 
> 
> The problem is, I can not capture the packets generated or destined at the VMs. All the VMs use bridging network to connect.
> 
> Can anyone help me? A lot of thanks!
> 

Depending on the interface you use (bridge) and the method you try to log
packets, you may try again with:

echo 1 > /proc/sys/net/bridge/bridge-nf-call-iptables



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