Port scanning and dos detection

[Sumit Balodi via Snort-users <snort-users () lists snort org>]

Hello
how can i use snort for port scanning and dos detection..and i have been
trying to detect port scanning from other network it does not show anthing
expect this error :- ERROR: OpenLogFile() =>
mkdir(c:\snort\log/fe80:0000:0000:0000:0000:ffff:ffff:fffe) log directory:
Invalid argument
Fatal Error, Quitting..

Command which i am using is :- c:\Snort\bin>snort -c
c:\snort\etc\snort.conf -l c:\snort\log -i2 -K ascii

looking forward for a solution

Thank you

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