ControlByWeb X-600M, Руководство пользователя

Страница: 46 / 158

Setup Pages X-600M Users Manual
for an IP address from a DHCP server each time it is powered up. The default for this setting is Y es
to facilitate assigning a temporary IP address to the X-600M (See Section 3.1.1.) For most
installations, we recommend assigning it a static IP address.
If you set DHCP to Yes, press Submit and then Commit Changes . When Commit Changes is
clicked the X-600M will immediately request a new DHCP address from the server. Once the X-
600M is assigned an IP address by the DHCP server, the new IP address can be found through the
list of clients kept by the DHCP server (for most instances, the DHCP server is the local gateway or
router). Three DHCP requests will be sent out over a nine second window. If no DHCP server is
found within this nine second window, the X-600M will revert back to the static network settings.
Brief Notes About DHCP
All devices on an IP network require an IP address. This is a unique address that identifies each
device on the network. DHCP (Dynamic Host Control Protocol) is a mechanism that automatically
assigns an IP address to a computer (or other devices) when it is connected to a network. This
eliminates the need to manually enter the IP address. Devices using DHCP will request an ip
address and other network settings from the DHCP server on the network. On many small networks,
the DHCP server is built into the router.
DHCP works well for "client" devices such as computers, but is not ideal for servers. This is because
servers usually don't initiate communications with other devices, but rather they wait for a request
from "clients." To make this request, the client must know the IP address of the server. If a server
gets its IP address dynamically, the IP address may not always be the same so client devices may
not be able to find the server. For this reason, servers usually use an IP address that is fixed and
does not change. The X-600M is a server and manual IP address assignment is usually
recommended.
IP Address:
Enter the IP address for the X-600M in this field. The IP address is specific to the network where the
X-600M will be installed, and must be obtained from the network administrator. The default setting
for this field is 192.168.1.2. If the IP address is changed, remember to press
Submit and then
Commit Changes as explained above. For more information on IP addresses and remotely
accessing the X-600M over the Internet, see Appendix C: Accessing X-600M Remotely Over the
Internet .
Netmask:
The Netmask (subnet mask) defines the size of the local network. This can be obtained from the
network administrator. For additional information about sub-netting and IP networking, many tutorials
are available on the Internet. The default setting for this field is 255.255.255.0.
Gateway:
This specifies the IP address of the gateway router. This can be obtained from the network
administrator. The default setting for this field is 192.168.1.1. This filed must be valid for the X-600M
to communicate with devices outside the local network.
Preferred DNS Server:
The IP address of the Primary DNS server is specified here. When DNS services are required, this
is the address that will be used. The default setting for this field is 192.168.1.1.
This field is required when any host name settings are fully qualified domain names. If IP addresses
are used for all host names, the DNS server will not be used.
Note: This is the same DNS setting
found on the Wireless setup page.
Alternate DNS Server:
This field is used to specify the IP address of a Secondary DNS server. This is used when the X-
600M requires DNS services and the preferred DNS server is not available. The default setting for
Page 44 Xytronix Research & Design, Inc.