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Figure 108 firewall: threshold, Table 66 firewall: threshold – ZyXEL Communications 802.11g HomePlug AV ADSL2+ Gateway P-660HWP-Dx User Manual

Page 188

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Chapter 11 Firewall Configuration

P-660HWP-Dx User’s Guide

66

Figure 108 Firewall: Threshold

The following table describes the labels in this screen.

Table 66 Firewall: Threshold

LABEL

DESCRIPTION

DEFAULT VALUES

Denial of Service

Thresholds

One Minute Low

This is the rate of new half-open sessions

that causes the firewall to stop deleting half-

open sessions. The P-660HWP-Dx continues

to delete half-open sessions as necessary,

until the rate of new connection attempts

drops below this number.

80 existing half-open sessions.

One Minute High

This is the rate of new half-open sessions

that causes the firewall to start deleting half-

open sessions. When the rate of new

connection attempts rises above this number,

the P-660HWP-Dx deletes half-open

sessions as required to accommodate new

connection attempts.

100 half-open sessions per

minute. The above numbers cause

the P-660HWP-Dx to start deleting

half-open sessions when more

than 100 session establishment

attempts have been detected in

the last minute, and to stop

deleting half-open sessions when

fewer than 80 session

establishment attempts have been

detected in the last minute.

Maximum

Incomplete Low

This is the number of existing half-open

sessions that causes the firewall to stop

deleting half-open sessions. The P-660HWP-

Dx continues to delete half-open requests as

necessary, until the number of existing half-

open sessions drops below this number.

80 existing half-open sessions.