Manually ILO Configuration Reset on BL20P G2

[Rula]

I made a misstake when configuring ILO IP adress, so both the ILO ip-address and the "NETBIOS-Name" IP-address are the same, with the result that I can no longer access server via ILO. The server do not answer to ping either (since both conflicting addresses wake up at the same time.
I took a look inside the lock, and the nearest slot i found is Ignore configuration or something like that.. and I am not sure what consequences it can be if I put this pin ON.
How do I do to manually reset ILO configuration to Factory Settings?