[NTLUG:Discuss] Problems settinh up ip spoofing protection

[m m]

Hi all:
I got this message when I reboot the box.

PROBLEM SETTINH UP IP SPOOFING PROTECTION
Control-d will exit from this shell and continue startup.

Give root password for maintenance
(or type Control-D for normal startup):

why does it happen?
After entering password, what should I do?
could anyone help?

TIA


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