ZyXEL Communications G-4100 V2 User Manual page 54

G-4100 v2 User's Guide
Table 5 ADVANCED > SYSTEM (continued)
LABEL
Contact Email
Date/Time
Get from my Computer Click this button to set the time and date on the ZyXEL Device to be the same
Get from NTP server
Use NTP (Network
Time Protocol) Time
Server
Server IP/Domain
Name
Time Zone
Update Time
Daylight Saving Time
Start Date
End Date
NAT (Network Address
Translation)
IP Plug and Play (iPnP
Technology)
User Session Limited
Layer 2 Isolation
Security
Secure administrator
IP addresses
54
DESCRIPTION
Enter the e-mail address of the person responsible for this device.
Set the system date and time by selecting the appropriate choices from the
drop-down list boxes.
as the management computer.
Click this button to set the time and date on the ZyXEL Device to be the same
as the management computer.
Select this check box to set the ZyXEL Device to get time and date information
from an NTP (Network Time Protocol) time server.
Enter the IP address or URL of your time server. Check with your ISP/network
administrator if you are unsure of this information.
Choose the time zone of your location. This will set the time difference
between your time zone and Greenwich Mean Time (GMT).
Enter a number to determine how often the ZyXEL Device uses the NTP server
to update the time and date.
Select this option if you use daylight savings time. Daylight saving is a period
from late spring to early fall when many countries set their clocks ahead of
normal local time by one hour to give more daytime light in the evening.
Select the month and day that your daylight-savings time starts on if you
selected Daylight Saving Time.
Select the month and day that your daylight-savings time ends on if you
selected Daylight Saving Time.
Enable NAT to have the ZyXEL Device translate Internet protocol addresses
used within one network (for example a private IP address used in a local
network) to a different IP address known within another network (for example a
public IP address used on the Internet). See the LAN Devices chapter for more
on NAT.
Select this option to activate the iPnP feature. This allows a computer to
access the Internet without changing the network settings (such as IP address
and subnet mask) of the computer, even when the IP addresses of the
computer and the ZyXEL Device are not in the same subnet.
When you disable the iPnP feature, only computers with dynamic IP addresses
or static IP addresses in the same subnet as the ZyXEL Device's LAN IP
address can connect to the ZyXEL Device or access the Internet through the
ZyXEL Device.
Select Unlimited to not place any restriction on the number of sessions that
each user connected to the ZyXEL Device 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 ZyXEL Device can
use.
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.
Select Any to use any computer to access the web configurator on the ZyXEL
Device.
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 ZyXEL Device. The
addresses can be on the LAN or the WAN.
Chapter 3 General System Setup