Draytek VIGOR3220 SERIES, Руководство пользователя

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Vigor3220 Series User’s Guide 581
udpflood, icmpflood, or postscan.
THRESHOLD It means the packet rate (packet/second) that a flooding attack will
be detected. Set a value larger than 20.
TIMEOUT It means the time (seconds) that a flooding attack will be blocked.
Set a value larger than 5.
-a Enable the defense function for all attacks listed in ATTACK_0.
-e Enable defense function for a specific attack(s).
ATTACK_0 Specify a name of the following attacks: ip_option, tcp_flag, land,
teardrop, smurf, pingofdeath, traceroute, icmp_frag, syn_frag,
unknow_proto, fraggle.
-d Disable the defense function for a specific attack(s).
E
E
x
x
a
a
m
m
p
p
l
l
e
e
>dos –A
The Dos Defense system is Activated
>dos –s synflood 50 10
Synflood is enabled! Threshold=50 <pke/sec> timeout=10 <pke/sec>