Edited NIC interface and now can't connect

[amorak]

I accidentally edited the NIC settings under the networking tab, and now I can't connect to my Freenas server. Do I have to plug in to see it or can I reconnect headless?

This is the screen - I was trying to force my FreeNAS server to have a static IP, instead of doing it through the router like I should have ...

Is there any way to force my FreeNAS server to go back to DHCP mode?

 

[amorak]

Edited because my original post was unclear.

 

[Jurgen Segaert]

The console menu has an option to (re)configure the network interfaces.
Do you have access to the console, either via IPMI or physically using a keyboard & monitor?

 

[joeschmuck]

Do I have to plug in to see it or can I reconnect headless?

That is the easiest option, connect a monitor to see it, connect a keyboard and then you can reconfigure it from the console.