ZyXEL Prestige 202H Plus ISDN Router 91-003-154001B 用户手册

P-202H Plus v2 User’s Guide

Chapter 9 Firewall Configuration

104

The following Internet firewall rule example allows a hypothetical “MyService” connection 
from the Internet.

1 Click Firewall, then Rule Summary under Internet to Local Network Set.

2 Click a rule number to open the Edit Rule screen. 

3 Click Any in the Source Address box and then click SrcDelete.

Reason

This field states the reason for the log; i.e., was the 

rule matched, not matched, or was there an attack. 

The set and rule coordinates (<X, Y> where X=1,2; 

Y=00~10) follow with a simple explanation. There 

are two policy sets; set 1 (X = 1) is for LAN to WAN 

rules and set 2 (X = 2) for WAN to LAN rules. Y 

represents the rule in the set. You can configure up 

to 10 rules in any set (Y = 01 to 10). Rule number 

00 is the default rule. 

not match
<1,01> dest IP 
This means this packet does not 

match the destination IP 

address in set 1, rule 1. Other 

reasons (instead of dest IP) are 

src IP, dest port, src port and 

protocol.

This is a log for a DoS attack.

attack
land, ip spoofing, icmp echo, 

icmp vulnerability, NetBIOS, 

smtp illegal command, 

traceroute, teardrop, or syn 

flood. 

Action

This field displays whether the packet was blocked 

(i.e., silently discarded), forwarded or neither 

(Block, Forward or None). "None" means that no 

action is dictated by this rule.

Block, Forward or None

Back 

Click Back to return to the previous screen.  

Previous Page/

Next Page

Click Previous Page or Next Page to view other pages in your log. 

Refresh

Click Refresh to renew the log screen.

Clear

Click Clear to clear all the logs.

Table 29   Firewall > Logs (continued)