SMC Networks SMC7904WBRA Manual de usuario descargar pdf (Pagina 103)

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• DoS Detect Criteria

Set up DoS and port scan criteria in the spaces provided (as shown below).

Note: The firewall does not significantly affect system performance, so

we advise enabling the prevention features to protect your

network.

Parameter Defaults Description

Total incomplete

TCP/UDP sessions

HIGH

300

sessions

Defines the rate of new unestablished sessions

that will cause the software to start deleting

half-open sessions.

Total incomplete

TCP/UDP sessions

LOW

250

sessions

Defines the rate of new unestablished sessions

that will cause the software to stop deleting half-

open sessions.

Incomplete

TCP/UDP sessions

(per min) HIGH

250

sessions

Maximum number of allowed incomplete

TCP/UDP sessions per minute.

Incomplete

TCP/UDP sessions

(per min) LOW

200

sessions

Minimum number of allowed incomplete

TCP/UDP sessions per minute.

Maximum incomplete

TCP/UDP sessions

number from same

host

10 Maximum number of incomplete TCP/UDP

sessions from the same host.

Incomplete

TCP/UDP sessions

detect sensitive time

period

300

msec

Length of time before an incomplete

TCP/UDP session is detected as incomplete.

Maximum half-open

fragmentation packet

number from same

host

30 Maximum number of half-open fragmentation

packets from the same host.

Half-open

fragmentation detect

sensitive time period

10000

msec

Length of time before a half-open

fragmentation session is detected as half-open.

Flooding cracker

block time

300

second

Length of time from detecting a flood attack to

blocking the attack.

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