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Plex jail responds do DHCP requests

Description

I recently setup the Plex plugin on my FreeNAS box. Shortly after I noticed that devices couldn't connect to my network. Everything with a static IP worked fine but everything that used DHCP couldn't get an IP. And in some cases it got an IP but on the wrong subnet.

I noticed the problem went away when I turned off the FreeNAS box. I also noticed that the devices that got an IP always got it on the same subnet as the Plex jail.

I opened a shell for the jail and started running tcpdump for port 67 and 68 and tried to connect a device using DHCP. And tcpdump showed that the Plex jail tried to respond to the request.

Is this really correct behaviour? Why would there be a DCHP server running in the Plex jail serving IP-addresses?

I'm running FreeNAS 11.3-U5.

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SmartDraw Connector

Katalon Manual Tests (BETA)

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Erik Ellsinger December 19, 2020 at 4:05 PM

I verified that settings vnet_default_interface to none also solves the issue, thanks!

Waqar December 18, 2020 at 7:35 PM

Glad to hear you resolved it and yes, that's how you would have to configure interfaces describing your bridge. Btw you can also set vnet_default_interface to "none" which will mean that iocae will not try to add the interface to the bridge.
We'll fix the UI part, thanks.

Erik Ellsinger December 18, 2020 at 2:06 PM

Yes that seems to have solved it. But I am still supposed to use vnet0:bridge20 as the interface in order to get the jail onto VLAN 20? Right now it's configured like this:

VLAN20 maybe doesn't show up in the GUI since no IP-address is assigned to it? The IP is assigned to bridge20.

Waqar December 17, 2020 at 8:40 PM

that is interesting Can you please try via CLI and we can fix the choices issue in the UI ? In the CLI you would do something like

By having bridges properly configured, i meant that they were setup from the UI and not auto-created by iocage as the auto-created ones are for simple network setups and one needs to be careful as to what he/she has configured.

Erik Ellsinger December 17, 2020 at 7:31 PM

That interface doesn't show up in the list:

My interfaces:

 

What more exactly do you mean by "would be nice to make sure bridge is properly configured"?

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Katalon Platform

Created October 9, 2020 at 9:02 PM
Updated July 1, 2022 at 4:54 PM
Resolved February 16, 2021 at 7:51 PM