ZyXEL Communications VSG-1200 V2, Руководство пользователя

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VSG-1200 V2 User’s Guide
Chapter 5 System 58
City Enter the name of the city where the VSG is installed.
State/Province Enter the name of the state or province where the VSG is installed.
Zip/Postal
Code
Enter the ZIP or postal code of the location where is the VSG is installed.
Country Enter the name of the country where the VSG is installed.
Contact Name Enter the name of the person to contact in case there is any problem with the VSG.
Contact
Telephone
Enter the telephone number of the person to contact in case there is any problem
with the VSG.
Contact Fax Enter the fax number of the person to contact in case there is any problem with the
VSG.
Contact Email Enter the e-mail address of the person to contact in case there is any problem with
the VSG.
Date/Time To manually set the system date and time, select the appropriate choices from the
Date and Time drop-down list boxes.
Click Get from my Computer to set the time and date on the VSG to be the same
as the computer that you use to configure the VSG.
If you select
Use NTP (Network Time Protocol) Time Server option and set the
necessary fields, you can click Get from NTP Server to update the time and date
on the VSG from the NTP time server.
Use NTP (Network
Time Protocol)
Time Server
Select this option to have the VSG get the date and time information from a time
server.
Server IP/
Domain Name
Enter the IP address or the domain name of the time server. Check with your ISP/
network administrator if you are unsure of this information.
Time Zone Select your time zone from the drop-down list box. This will set the time difference
between your time zone and Greenwich Mean Time (GMT).
Update Time Enter the number of hours between updates.
Daylight
Savings
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.
Start Date Specify the month and day that your daylight-savings time starts on if you select
Daylight Savings .
End Date Specify the month and day that your daylight-savings time ends on if you select
Daylight Savings .
NAT (Network
Address
Translation)
NAT (RFC 1631) is the translation of the IP address of a host in a packet, for
example, the source address of an outgoing packet, used within one network to a
different IP address known within another network.
Select
Enable to activate Network Address Translation (NAT). Enable this feature
to set your VSG to map multiple local IP addresses to one global IP address. This
is the default selection.
Select
Disable to deactivate NAT.
IP Plug and
Play (iPnP
Technology)
Select this option to allow plug-and-play Internet access which means that
subscribers do not have to change their network settings. This feature is activated
by default.
DNS Fake IP
Reply
Select this option to assign private IP address to a network device (such as the e-
mail server). NAT will translate the private IP address to the public IP address on
the WAN.
Table 4 System Setting: System (continued)
LABEL DESCRIPTION