Always Running Ethernet Interface On Mikrotik
Thursday, July 21, 2011
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Some of X86 server based mikrotiks were showing “R” at ethernet interfaces although the cable is unplug. I did some quick searching and found that on X86 installs by default there is an option “disable-running-check” enabled. What this does is make the interface appear to always be running. As a byproduct if the interface always appears to be running, any IP addressing and routing is also still valid. This means that your router will still thinks this is a valid path.
With a quick command, you can revert this behavior to normal opperation:In the below command I specified all three of my interfaces at once.
/interface ethernet set 0,1,2 disable-running-check=no
(MU).
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