Avaya Business Secure Router 252 Configuration - Basics Uživatelský manuál stáhnout pdf (Strana 177)

Chapter 11 Firewall screens 177

Nortel Business Secure Router 252 Configuration — Basics

Bypass Triangle

Route

Select this check box to have the Business Secure Router permit the

use of asymmetrical route topology on the network (not reset the

connection).

Firewall Rules

Storage Space in

Use

This read-only bar shows how much of the Business Secure Router's

memory for recording firewall rules is currently being used. The bar

turns from green to red when the maximum is approached. You can

typically configure up to ten rules per traffic direction.

Packet Direction Use the drop-down list to select a direction of travel of packets for

which you want to display firewall rules.

Block/

Forward

Use the option buttons to select whether to Block (silently discard) or

Forward (allow the passage of) packets that are traveling in the

selected direction.

Log packets that

don’t match these

rules.

Select the check box to create a log (when the above action is taken)

for packets that are traveling in the selected direction and do not

match any of the rules below.

The following read-only fields summarize the rules you have created

that apply to traffic traveling in the selected packet direction. The

firewall rules that you configure (summarized below) take priority

over the general firewall action settings above.

# This is your firewall rule number. The ordering of your rules is

important as rules are applied in turn. The Move field allows you to

reorder your rules.

Status This field displays whether a firewall is turned on (Active) or not

(Inactive). Rules that have not been configured display Empty.

Source Address This drop-down list displays the source addresses or ranges of

addresses to which this firewall rule applies. Note that a blank source

or destination address is equivalent to Any.

Destination

Address

This drop-down list displays the destination addresses or ranges of

addresses to which this firewall rule applies. Note that a blank source

or destination address is equivalent to Any.

Service Type This drop-down list displays the services to which this firewall rule

applies. Note that a blank service type is equivalent to Any. For more

information, see Table 40 on page 187.

Action This is the specified action for the selected rule, either Block or

Forward. Note that Block means the firewall silently discards the

packet.

Log This field shows you if a log is created for packets that match the rule

(Match), don't match the rule (Not Match), both (Both), or no log is

created (None).

Alert This field tells you whether this rule generates an alert (Yes) or not

(No) when the rule is matched.

Table 36 Firewall rules summary: First screen

Label Description

1 2 ... 172 173 174 175 176 177 178 179 180 181 182 ... 459 460

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