Table 1:

Different types of Attack from Kddcup 99 Datasets [1]

DOS	Probe	R2L	U2R
Back	Nmap	Spy	Buffer overflow
Land	Portsweep	Phf	Rootkit
Neptune	Ipsweep	Multihop	Loadmodule
Pod	Satan	ftp write	Perl
Smurf		Imap
Teardrop		Warezmaster
		Guess passwd