ZyXEL Router Prestige 334 User Manual

							Prestige 334 User’s Guide
Chapter 4 System Screens60
4.5  Configuring Password
To change your Prestige’s password (recommended), click SYSTEM, then the Password tab. 
The screen appears as shown. This screen allows you to change the Prestige’s password.
Figure 13   Password
The following table describes the labels in this screen.
4.6  Configuring Time Setting
To change your Prestige’s time and date, click SYSTEM, then the Time Setting tab. The 
screen appears as shown. Use this screen to configure the Prestige’s time based on your local 
time zone. 
ApplyClick Apply to save your changes back to the Prestige.
ResetClick Reset to begin configuring this screen afresh.
Table 9   DDNS
LABELDESCRIPTION
Table 10   Password
LABELDESCRIPTION
Old PasswordType the default password or the existing password you use to access the 
system in this field.
New PasswordType the new password in this field.
Retype to ConfirmType the new password again in this field.
ApplyClick Apply to save your changes back to the Prestige.
ResetClick Reset to begin configuring this screen afresh. 
						

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Figure 14   Time Setting
The following table describes the labels in this screen.
Table 11   Time Setting
LABELDESCRIPTION
Use Time Server 
when Bootup Select the time service protocol that your time server sends when you turn on 
the Prestige. Not all time servers support all protocols, so you may have to 
check with your ISP/network administrator or use trial and error to find a protocol 
that works.
The main difference between them is the format.
Daytime (RFC 867) format is day/month/year/time zone of the server. 
Time (RFC 868) format displays a 4-byte integer giving the total number of 
seconds since 1970/1/1 at 0:0:0. 
The default, NTP (RFC 1305), is similar to Time (RFC 868). 
Select None to enter the time and date manually. 
Time Server  
AddressEnter the IP address or URL (up to 20 extended ASCII characters in length) of 
your time server. Check with your ISP/network administrator if you are unsure of 
this information.
Current TimeThis field displays the time of your Prestige.
Each time you reload this page, the Prestige synchronizes the time with the time 
server.
New TimeThis field displays the last updated time from the time server.
When you select None in the Time Protocol field, enter the new time in this 
field and then click Apply. 
Current DateThis field displays the date of your Prestige. 
Each time you reload this page, the Prestige synchronizes the time with the time 
server. 
						

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Chapter 4 System Screens62
New DateThis field displays the last updated date from the time server.
When you select None in the Time Protocol field, enter the new date in this 
field and then click Apply.
Time ZoneChoose the Time Zone of your location. This will set the time difference between 
your time zone and Greenwich Mean Time (GMT). 
Daylight SavingsSelect 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 DateEnter the month and day that your daylight-savings time starts on if you selected 
Daylight Savings.
End DateEnter the month and day that your daylight-savings time ends on if you selected 
Daylight Savings.
ApplyClick Apply to save your changes back to the Prestige.
ResetClick Reset to begin configuring this screen afresh.
Table 11   Time Setting
LABELDESCRIPTION 
						

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							Prestige 334 User’s Guide
Chapter 5 LAN Screens64
CHAPTER5
LAN Screens
This chapter describes how to configure LAN settings.
5.1  LAN Overview
Local Area Network (LAN) is a shared communication system to which many computers are 
attached. The LAN screens can help you configure a LAN DHCP server, manage IP addresses, 
and partition your physical network into logical networks.  
5.2  DHCP Setup
DHCP (Dynamic Host Configuration Protocol, RFC 2131 and RFC 2132) allows individual 
clients to obtain TCP/IP configuration at start-up from a server. You can configure the Prestige 
as a DHCP server or disable it. When configured as a server, the Prestige provides the TCP/IP 
configuration for the clients. If DHCP service is disabled, you must have another DHCP server 
on your LAN, or else the computer must be manually configured.
5.2.1  IP Pool Setup
The Prestige is pre-configured with a pool of 32 IP addresses starting from 192.168.1.33 to 
192.168.1.64. This configuration leaves 31 IP addresses (excluding the Prestige itself) in the 
lower range for other server computers, for instance, servers for mail, FTP, TFTP, web, etc., 
that you may have.
5.2.2  System DNS Servers
Refer to the IP Address and Subnet Mask section in the Wizard Setup chapter.
5.3  LAN TCP/IP 
The Prestige has built-in DHCP server capability that assigns IP addresses and DNS servers to 
systems that support DHCP client capability.
5.3.1  Factory LAN Defaults
The LAN parameters of the Prestige are preset in the factory with the following values: 
						

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• IP address of 192.168.1.1 with subnet mask of 255.255.255.0 (24 bits)
• DHCP server enabled with 32 client IP addresses starting from 192.168.1.33. 
These parameters should work for the majority of installations. If your ISP gives you explicit 
DNS server address(es), read the embedded web configurator help regarding what fields need 
to be configured.
5.3.2  IP Address and Subnet Mask
Refer to the IP Address and Subnet Mask section in the Wizard Setup chapter for this 
information.
5.3.3  RIP Setup
RIP (Routing Information Protocol, RFC 1058 and RFC 1389) allows a router to exchange 
routing information with other routers. RIP Direction controls the sending and receiving of 
RIP packets. When set to Both or Out Only, the Prestige will broadcast its routing table 
periodically. When set to Both or In Only, it will incorporate the RIP information that it 
receives; when set to None, it will not send any RIP packets and will ignore any RIP packets 
received.  
RIP Version controls the format and the broadcasting method of the RIP packets that the 
Prestige sends (it recognizes both formats when receiving). RIP-1 is universally supported; 
but RIP-2 carries more information. RIP-1 is probably adequate for most networks, unless you 
have an unusual network topology.
Both RIP-2B and RIP-2M send routing data in RIP-2 format; the difference being that RIP-
2B uses subnet broadcasting while RIP-2M uses multicasting. Multicasting can reduce the 
load on non-router machines since they generally do not listen to the RIP multicast address 
and so will not receive the RIP packets. However, if one router uses multicasting, then all 
routers on your network must use multicasting, also.
By default, RIP Direction is set to Both and RIP Version to RIP-1.
5.3.4  Multicast
Traditionally, IP packets are transmitted in one of either two ways - Unicast (1 sender - 1 
recipient) or Broadcast (1 sender - everybody on the network). Multicast delivers IP packets to 
a group of hosts on the network - not everybody and not just 1. 
IGMP (Internet Group Multicast Protocol) is a network-layer protocol used to establish 
membership in a Multicast group - it is not used to carry user data. IGMP version 2 (RFC 
2236) is an improvement over version 1 (RFC 1112) but IGMP version 1 is still in wide use. If 
you would like to read more detailed information about interoperability between IGMP 
version 2 and version 1, please see sections 4 and 5 of RFC 2236. The class D IP address is 
used to identify host groups and can be in the range 224.0.0.0 to 239.255.255.255. The address  
						

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Chapter 5 LAN Screens66
224.0.0.0 is not assigned to any group and is used by IP multicast computers. The address 
224.0.0.1 is used for query messages and is assigned to the permanent group of all IP hosts 
(including gateways). All hosts must join the 224.0.0.1 group in order to participate in IGMP. 
The address 224.0.0.2 is assigned to the multicast routers group. 
The Prestige supports both IGMP version 1 (IGMP-v1) and IGMP version 2 (IGMP-v2). At 
start up, the Prestige queries all directly connected networks to gather group membership. 
After that, the Prestige periodically updates this information. IP multicasting can be enabled/
disabled on the Prestige LAN and/or WAN interfaces in the web configurator (LAN; WA N). 
Select None to disable IP multicasting on these interfaces. 
5.4  Configuring IP 
Click LAN to open the IP screen. 
						

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Figure 15   LAN IP
The following table describes the labels in this screen.
Table 12   LAN IP
LABELDESCRIPTION
DHCP ServerDHCP (Dynamic Host Configuration Protocol, RFC 2131 and RFC 2132) allows 
individual clients (computers) to obtain TCP/IP configuration at startup from a 
server. Leave the DHCP Server check box selected unless your ISP instructs 
you to do otherwise. Clear it to disable the Prestige acting as a DHCP server. 
When configured as a server, the Prestige provides TCP/IP configuration for the 
clients. If not, DHCP service is disabled and you must have another DHCP server 
on your LAN, or else the computers must be manually configured. When set as a 
server, fill in the following four fields.
IP Pool Starting 
AddressThis field specifies the first of the contiguous addresses in the IP address pool.
Pool SizeThis field specifies the size, or count of the IP address pool.
DNS Servers Assigned by DHCP Server 
The Prestige passes a DNS (Domain Name System) server IP address (in the order you specify here) 
to the DHCP clients. The Prestige only passes this information to the LAN DHCP clients when you 
select the DHCP Server check box. When you clear the DHCP Server check box, DHCP service is 
disabled and you must have another DHCP sever on your LAN, or else the computers must have their 
DNS server addresses manually configured. 
						

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First DNS Server
Second DNS Server
Third DNS Server 
Select From ISP if your ISP dynamically assigns DNS server information (and 
the Prestiges WAN IP address). The field to the right displays the (read-only) 
DNS server IP address that the ISP assigns. 
Select User-Defined if you have the IP address of a DNS server. Enter the DNS 
servers IP address in the field to the right. If you chose User-Defined, but leave 
the IP address set to 0.0.0.0, User-Defined changes to None after you click 
Apply. If you set a second choice to User-Defined, and enter the same IP 
address, the second User-Defined changes to None after you click Apply. 
Select DNS Relay to have the Prestige act as a DNS proxy. The Prestiges LAN 
IP address displays in the field to the right (read-only). The Prestige tells the 
DHCP clients on the LAN that the Prestige itself is the DNS server. When a 
computer on the LAN sends a DNS query to the Prestige, the Prestige forwards 
the query to the Prestiges system DNS server (configured in the SYSTEM 
General screen) and relays the response back to the computer. You can only 
select DNS Relay for one of the three servers; if you select DNS Relay for a 
second or third DNS server, that choice changes to None after you click Apply. 
Select None if you do not want to configure DNS servers. If you do not configure 
a DNS server, you must know the IP address of a computer in order to access it.
LAN TCP/IP
IP AddressType the IP address of your Prestige in dotted decimal notation 192.168.1.1 
(factory default).
IP Subnet MaskThe subnet mask specifies the network number portion of an IP address. Your 
Prestige will automatically calculate the subnet mask based on the IP address 
that you assign. Unless you are implementing subnetting, use the subnet mask 
computed by the Prestige 255.255.255.0.
RIP DirectionRIP (Routing Information Protocol, RFC1058 and RFC 1389) allows a router to 
exchange routing information with other routers. The RIP Direction field controls 
the sending and receiving of RIP packets. Select the RIP direction from Both/In 
Only/Out Only/None. When set to Both or Out Only, the Prestige will broadcast 
its routing table periodically. When set to Both or In Only, it will incorporate the 
RIP information that it receives; when set to None, it will not send any RIP 
packets and will ignore any RIP packets received. Both is the default.
RIP VersionThe RIP Version field controls the format and the broadcasting method of the 
RIP packets that the Prestige sends (it recognizes both formats when receiving). 
RIP-1 is universally supported but RIP-2 carries more information. RIP-1 is 
probably adequate for most networks, unless you have an unusual network 
topology. Both RIP-2B and RIP-2M sends the routing data in RIP-2 format; the 
difference being that RIP-2B uses subnet broadcasting while RIP-2M uses 
multicasting. Multicasting can reduce the load on non-router machines since they 
generally do not listen to the RIP multicast address and so will not receive the 
RIP packets. However, if one router uses multicasting, then all routers on your 
network must use multicasting, also. By default, RIP direction is set to Both and 
the Version set to RIP-1.
MulticastSelect IGMP V-1 or IGMP V-2 or None. IGMP (Internet Group Multicast Protocol) 
is a network-layer protocol used to establish membership in a Multicast group - it 
is not used to carry user data. IGMP version 2 (RFC 2236) is an improvement 
over version 1 (RFC 1112) but IGMP version 1 is still in wide use. If you would 
like to read more detailed information about interoperability between IGMP 
version 2 and version 1, please see sections 4 and 5 of RFC 2236.
Windows Networking (NetBIOS over TCP/IP): NetBIOS (Network Basic Input/Output System) are TCP 
or UDP broadcast packets that enable a computer to connect to and communicate with a LAN. For 
some dial-up services such as PPPoE or PPTP, NetBIOS packets cause unwanted calls. However it 
may sometimes be necessary to allow NetBIOS packets to pass through to the WAN in order to find a 
computer on the WAN.
Table 12   LAN IP
LABELDESCRIPTION 
						

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69Chapter 5 LAN Screens
5.5  Configuring Static DHCP
This table allows you to assign IP addresses on the LAN to specific individual computers 
based on their MAC Addresses. 
Every Ethernet device has a unique MAC (Media Access Control) address. The MAC address 
is assigned at the factory and consists of six pairs of hexadecimal characters, for example, 
00:A0:C5:00:00:02.
To change your Prestige’s Static DHCP settings, click LAN, then the Static DHCP tab. The 
screen appears as shown.
Allow between LAN 
and WANSelect this check box to forward NetBIOS packets from the LAN to the WAN and 
from the WAN to the LAN. If your firewall is enabled with the default policy set to 
block WAN to LAN traffic, you also need to enable the default WAN to LAN 
firewall rule that forwards NetBIOS traffic.
Clear this check box to block all NetBIOS packets going from the LAN to the 
WAN and from the WAN to the LAN.
ApplyClick Apply to save your changes back to the Prestige.
ResetClick Reset to begin configuring this screen afresh.
Table 12   LAN IP
LABELDESCRIPTION