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116
Chapter 8 LAN Setup
8.5
LAN Client List
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.
Click
Network > LAN
> Client List
to open the following screen. Use this screen to change
your ZyXEL Device’s static DHCP settings.
Figure 58
LAN Client List
First DNS Server
Second DNS Server
Third DNS Server
Select
Obtained
From ISP
if your ISP dynamically assigns DNS server
information (and the ZyXEL Device's WAN IP address).
Select
User-Defined
if you have the IP address of a DNS server. Enter the DNS
server's 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 ZyXEL Device act as a DNS proxy only when the
ISP uses IPCP DNS server extensions. The ZyXEL Device's LAN IP address
displays in the field to the right (read-only). The ZyXEL Device tells the DHCP
clients on the LAN that the ZyXEL Device itself is the DNS server. When a
computer on the LAN sends a DNS query to the ZyXEL Device, the ZyXEL
Device forwards the query to the real DNS server learned through IPCP 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. You must have
another DHCP sever on your LAN, or else the computers must have their DNS
server addresses manually configured. If you do not configure a DNS server,
you must know the IP address of a computer in order to access it.
Apply
Click
Apply
to save your changes back to the ZyXEL Device.
Cancel
Click
Cancel
to begin configuring this screen afresh.
Table 32
DHCP Setup
LABEL
DESCRIPTION
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Chapter 8 LAN Setup
117
The following table describes the labels in this screen.
8.6
LAN IP Alias
IP alias allows you to partition a physical network into different logical networks over the
same Ethernet interface. The ZyXEL Device supports three logical LAN interfaces via its
single physical Ethernet interface with the ZyXEL Device itself as the gateway for each LAN
network.
When you use IP alias, you can also configure firewall rules to control access between the
LAN's logical networks (subnets).
Note:
Make sure that the subnets of the logical networks do not overlap.
The following figure shows a LAN divided into subnets A, B, and C.
Table 33
LAN Client List
LABEL
DESCRIPTION
IP Address
Enter the IP address that you want to assign to the computer on your LAN with the
MAC address that you will also specify.
MAC Address
Enter the MAC address of a computer on your LAN.
Add
Click
Add
to add a static DHCP entry.
#
This is the index number of the static IP table entry (row).
Status
This field displays whether the client is connected to the ZyXEL Device.
Host Name
This field displays the computer host name.
IP Address
This field displays the IP address relative to the # field listed above.
MAC Address
The MAC (Media Access Control) or Ethernet address on a LAN (Local Area
Network) is unique to your computer (six pairs of hexadecimal notation).
A network interface card such as an Ethernet adapter has a hardwired address
that is assigned at the factory. This address follows an industry standard that
ensures no other adapter has a similar address.
Reserve
Select the check box in the heading row to automatically select all check boxes or
select the check box(es) in each entry to have the ZyXEL Device always assign
the selected entry(ies)’s IP address(es) to the corresponding MAC address(es)
(and host name(s)). You can select up to 128 entries in this table. After you click
Apply
, the MAC address and IP address also display in the
LAN Static DHCP
screen (where you can edit them).
Modify
Click the modify icon to have the IP address field editable and change it.
Apply
Click
Apply
to save your changes back to the ZyXEL Device.
Cancel
Click
Cancel
to begin configuring this screen afresh.
Refresh
Click
Refresh
to reload the DHCP table.
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Chapter 8 LAN Setup
Figure 59
Physical Network & Partitioned Logical Networks
Click
Network
>
LAN
>
IP Alias
to open the following screen. Use this screen to change
your ZyXEL Device’s IP alias settings.
Figure 60
LAN IP Alias
The following table describes the labels in this screen.
Table 34
LAN IP Alias
LABEL
DESCRIPTION
IP Alias 1, 2
Select the check box to configure another LAN network for the ZyXEL Device.
IP Address
Enter the IP address of your ZyXEL Device in dotted decimal notation.
Alternatively, click the right mouse button to copy and/or paste the IP address.
IP Subnet Mask
Your ZyXEL Device 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 ZyXEL Device.
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119
RIP Direction
RIP (Routing Information Protocol, RFC 1058 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 ZyXEL Device 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
The
RIP Version
field controls the format and the broadcasting method of the RIP
packets that the ZyXEL Device 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
.
Apply
Click
Apply
to save your changes back to the ZyXEL Device.
Cancel
Click
Cancel
to begin configuring this screen afresh.
Table 34
LAN IP Alias
LABEL
DESCRIPTION
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Chapter 8 LAN Setup

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