Zyxel-communications 202H Manual de usuario descargar pdf (Pagina 159)

Prestige 202H User’s Guide

Configuring Firewall with the Web Configurator 14-11

Table 14-4 Attack Alert

TCP Maximum

Incomplete

This is the number of existing half-open

TCP sessions with the same destination

host IP address that causes the firewall to

start dropping half-open sessions to that

same destination host IP address. Enter a

number between 1 and 250. As a general

rule, you should choose a smaller number

for a smaller network, a slower system or

limited bandwidth.

10 existing half-open TCP

sessions.

Blocking Time

When TCP Maximum Incomplete is

reached you can choose if the next

session should be allowed or blocked. If

you select the Blocking Time checkbox,

any new sessions will be blocked for the

length of time you specify in the next field

(min) and all old incomplete sessions will

be cleared during this period. If you want

strong security, it is better to block the

traffic for a short time, as it will give the

server some time to digest the loading.

minutes (default)

(minute)

Enter the length of Blocking Time in

minutes.

Click Back to return to the previous screen. Click Apply to save your customized settings and exit this

screen. Click Cancel to return to the previous configuration. Use the Help icon to view field

descriptions.

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Zyxel-communications 202H Manual de usuario Pagina 159