PAMSPAN501x G.SHDSL.bis EFM Gateway
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than the scan threshold that is set, the suspected attacker is blocked for 86400
seconds. To modify this default duration, enter:
security set IDS SCANattackblock <duration>
Denial of Service (DoS) attacks
A Denial of Service (DoS) attack is an attempt by an attacker to prevent
legitimate hosts from using a service. There are two main types of DoS attack:
- Flood attack is when an attacker tries to overload your device by flooding it with
packets. Whilst your device tries to cope with this sudden influx of packets, it
causes delays to the transport of legitimate packets or prevents the network from
transporting legitimate traffic altogether.
- Logic or software attack is a small number of corrupt packets that are designed to
exploit known software bugs on the target system.
The Security module can detect the early stages of the following DoS attacks:
SMURF Attack
SYN/FIN/RST Flood
ICMP Flood
Ping Flood
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