unplugged 1 nic causes pfsense to not work
-
hi, i am using latest pfsense 2.6 , i unplugged 1 nic and restarted pfsense after that i was unable to login to pfsense it was asking me to setup the interfaces but if i plug that interface again it works, so does it mean that if one of my interface card went bad my pfsense will not work? Check img for more detail. Thanks
-
If you remove an interface that is assigned the config will fail the interface mismatch check the ask you to re-assign them at the console like that. That's expected.
If you need to remove an interface be sure to unassign it first.Steve
-
@stephenw10 but if the interface fails how am i going to unassigned it, is there a way to not break pfsense because of the interface fail? Thank you
-
nothing is "broken".
you just have to re-assign the interfaces -
@ed-tech said in unplugged 1 nic causes pfsense to not work:
not break pfsense because of the interface fail?
Huh - your saying the interface fails in a way that pfsense can not detect it - how would it still work anyway. The lan interface fails - nobody is going anywhere until you tell pfsense which other interface to use for its "lan" And move the cable to that interface anyway.
-
@johnpoz no i am worried about if my backup wan interface fails
-
@ed-tech but that is not the one that fails, its your lan interface that fails.
If an interfaces fails in such a way that it can not be detected, you need to tell pfsense which interfaces to use for what.
The problem is when an interface is pulled or fails in such a drastic fashion.. The interfaces numbers can change.
Say you had
igb0 = wan
igb1 = backup wan
igb2 = lanNow your igb1 fails and no longer detected by pfsense.. You end up say with this
igb0 = wan
igb1 = lanHow is that going to work? You need to tell pfsense, hey igb1 is lan. Because it thinks igb1 is your backup link.
If you have a failure that remove an interface, the order of all the interfaces could be messed up. When a system boots and detects interface it doesn't just not detect igb1 and skip that number.. It will assign the number of the interface in the detection order..
You might now end up with say when the interfaces are detected.
igb0 = lan
igb1 = wan -
@johnpoz if you see the picture the re1 is my backup interface and that interface i removed it to see what happens and because of that interface that i removed the pfsense doesn't boot. I am just doing test to see what happens in every scenario
-
@ed-tech you physically removed the actual interface from the box.. That is a drastic failure - and yes more than likely would require telling pfsense, hey the interfaces are this.
More likely failure would be that connection is down, but the card is still detected.
When the OS order of interfaces change - pfsense has to be told which interfaces are which in this new order..
A more likely failure test would be to just remove the cable from the connection, so the connection goes down.
You have 3 interfaces, wan lan and (backup wan).. You have 2 chances out of 3 that your dead if that interface drastic fails and pfsense doesn't detected. Testing that your wan backup fails and is not detected by OS any longer is rare failure mode to test for if you ask me.
-
Yeah, the chances of a NIC failing so that it's not seen on the PCI bus is extremely low. It's far more likely to fail on the other side.
If hardware failures like that are a concern you should be using an HA pair.
Steve
