FqU"Cvvcem"V{rg" Fguetkrvkqp"
Ping Of Death ICMP ECHO Request Packet whose sum of "Fragment Offset" and
"Total Length" fields in the IP header is greater than 65535 may cause
Ping of Death attack. As the maximum packet length of an IPv4 packet
including the IP header is 65,535 bytes, many computer systems could
not properly handle this malformed or malicious ICMP ECHO Request
Packet. Thus, the hosts may break down or reboot automatically when
receive this kind of packet.
Table 13-1 Defendable DoS Attack Types
350703" FqU"Fghgpf"
On this page, you can enable the DoS Defend type appropriate to your need.
Choose the menu Pgvyqtm"Ugewtkv{→FqU"Fghgpf→FqU"Fghgpf to load the following page.
Figure 13-18 DoS Defend
The following entries are displayed on this screen:
" Fghgpf"Eqphki"
FqU"Fghgpf<"
Allows you to Enable/Disable DoS Defend function.
Rkpi"Nkokvkpi<"
Specify the transmission rate of the Ping packets when the Defend
Type Ping Flooding is enabled.
U[P"Nkokvkpi<"
Specify the transmission rate of the SYN/SYN-ACK packets when
the Defend Type SYN/SYN-ACK Flooding is enabled.
" Fghgpf"Vcdng"
Ugngev<"
Select the entry to enable the corresponding Defend Type.
215
To Next Page
Loading...
