On 03/29/2014 07:43 AM, Matt Lager wrote:
The Setup: I've got a pretty simple setup... A FreeBSD 10.0 host with
3 jails on it. The host, and each jail are assigned a public IP
address. The host runs PF that controls inbound and outbound traffic
for itself and it's jails. All works really nicely. Here's a basic
diagram:
PF does a really good job controlling traffic to and from remote
system. I have recently come across the need to limit traffic from
jails on the host to other jails on the same host. I.E. HostA-JailA
needs to not be able to communicate with HostA-JailB. What I am
seeing, however, is that because all these jails share a single
interface, the traffic must not be going through PF as it is just seen
as local traffic.
I briefly tried to bring up a jail on another interface (lo1 for
example) and use NAT to provide it with its connectivity, but even
then the local traffic was still not filterable.
There's got to be a way, but my brain hasn't thought of it yet. Any
advice would be amazing, thanks so much ahead of time!
--Matt
Do you have rules that allow all traffic on loopback, or do you have
'set skip on lo0' or something in your pf.conf? I had the latter set
last time I tried to limit traffic between jails, it took me a little
time to realize it.
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