ZyXEL N4100 Guia Do Utilizador

 Chapter 4 System Setup

N4100 User’s Guide

The following section contains additional technical information about the N4100 
features described in this chapter.

User Session 
Limited

Select Unlimited to not place any restriction on the number of sessions 
that each user connected to the N4100 can use.

Select the other radio button and type a number (from 1 to 1024) if you 
want to specify how many sessions each user connected to the N4100 
can use.

Layer 2 
Isolation 
Security

If you activate NAT, select Enable in this field to prevent communication 
between subscribers. This is the default selection. 

Select Disable, to deactivate layer 2 security and allow communication 
between subscribers.

Secure 
administrator 
IP addresses

Select Any to use any computer to access the web configurator on the 
N4100. 

Select Specify and then enter the IP address(es) or ranges of IP 
addresses of the computer(s) that are allowed to log in to configure the 
N4100. The addresses can be on the LAN or the WAN.

Multicast Pass 
Through

Select Enable to allow multicast traffic to pass through the N4100. This 
may affect your network performance. 

Select Disable to prevent any multicast traffic from passing through the 
N4100. This is the default setting. 

Allow remote 
user to ping 
the device

This feature affects the security of the N4100’s WAN port. Ping (Packet 
INternet Groper) is a protocol that sends out ICMP echo requests to test 
whether or not a remote host is reachable. Select Enable to have the 
N4100 respond to incoming Ping requests from the WAN. This is less 
secure since someone on the Internet can see that the N4100 is there by 
pinging it.

Select Disable to have the N4100 not respond to incoming Ping requests 
from the WAN. This is more secure since someone on the Internet cannot 
see that the N4100 is there by pinging it.

SSL Certificate Secure Socket Layer (SSL) security allows you to create secure 

connections between the N4100 and the management or subscriber 
computer(s). 

Select Default to use the default system-generated SSL certificate. 

Select Customer Certificate to use a certificate obtained from a 
certificate authority. 

Refer to 

 for more information. 

Apply

Click Apply to save your changes back to the N4100.

Table 7   ADVANCED > SYSTEM (continued)