ZyXEL P-660HW-T1 v3 User Guide - Page 125

Table 26

Page 125 highlights

Chapter 7 LAN Setup The following table describes the labels in this screen. Table 26 Network > LAN > DHCP Setup LABEL DESCRIPTION DHCP Setup DHCP If set to Server, your ZyXEL Device can assign IP addresses, an IP default gateway and DNS servers to Windows 95, Windows NT and other systems that support the DHCP client. If set to None, the DHCP server will be disabled. If set to Relay, the ZyXEL Device acts as a surrogate DHCP server and relays DHCP requests and responses between the remote server and the clients. Enter the IP address of the actual, remote DHCP server in the Remote DHCP Server field in this case. When DHCP is used, the following items need to be set: IP Pool Starting Address This field specifies the first of the contiguous addresses in the IP address pool. Pool Size This field specifies the size, or count of the IP address pool. Remote DHCP Server If Relay is selected in the DHCP field above then enter the IP address of the actual remote DHCP server here. DNS Server DNS Servers The ZyXEL Device passes a DNS (Domain Name System) server IP Assigned by DHCP address to the DHCP clients. Server 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, UserDefined 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. Apply Cancel 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. Click this to save your changes. Click this to restore your previously saved settings. P-660HW-Tx v3 Series User's Guide 125

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Chapter 7 LAN Setup
P-660HW-Tx v3 Series User’s Guide
125
The following table describes the labels in this screen.
Table 26
Network > LAN > DHCP Setup
LABEL
DESCRIPTION
DHCP Setup
DHCP
If set to
Server
, your ZyXEL Device can assign IP addresses, an IP
default gateway and DNS servers to Windows 95, Windows NT and
other systems that support the DHCP client.
If set to
None
, the DHCP server will be disabled.
If set to
Relay
, the ZyXEL Device acts as a surrogate DHCP server
and relays DHCP requests and responses between the remote server
and the clients. Enter the IP address of the actual, remote DHCP
server in the
Remote DHCP Server
field in this case.
When DHCP is used, the following items need to be set:
IP Pool Starting
Address
This field specifies the first of the contiguous addresses in the IP
address pool.
Pool Size
This field specifies the size, or count of the IP address pool.
Remote DHCP
Server
If
Relay
is selected in the
DHCP
field above then enter the IP
address of the actual remote DHCP server here.
DNS Server
DNS Servers
Assigned by DHCP
Server
The ZyXEL Device passes a DNS (Domain Name System) server IP
address to the DHCP clients.
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 this to save your changes.
Cancel
Click this to restore your previously saved settings.