User manual

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7.2 Routing Mode
Routing mode contains DHCP server,
DHCP client, DHCP relay, Point-to-Point
Protocol over ATM and Ethernet and IP
over ATM and Ethernet over ATM. You
have to clarify which Internet protocol is
provided by ISP.
Click ROUTE and CPE Side then press
Next.
This product can be setup as two
SHDSL.bis working mode: CO (Central Office) and CPE (Customer Premises Equipment). For
connection with DSLAM, the SHDSL.bis working mode is CPE. For LAN to LAN connection, one side
must be CO and the other side must be CPE.
7.2.1 DHCP Server
Dynamic Host Configuration Protocol (DHCP) is a communication protocol that lets network
administrators to manage centrally and automate the assignment of Internet Protocol (IP) addresses in
an organization's network. Using the Internet Protocol, each machine that can connect to the Internet
needs a unique IP address. When an organization sets up its computer users with a connection to the
Internet, an IP address must be assigned to each machine.
Without DHCP, the IP address must be entered manually at each computer. If computers move to
another location in another part of the network, a new IP address must be entered. DHCP lets a
network administrator to supervise and distribute IP addresses from a central point and automatically
sends a new IP address when a computer is plugged into a different place in the network. If the DHCP
server is Enable, you have to setup the following parameters for processing it as DHCP server.
The embedded DHCP server assigns
network configuration information at most
253 users accessing the Internet in the
same time.
IP type: Fixed
IP Address: 192.168.0.1
Subnet Mask: 255.255.255.0
Host Name: SOHO
Some of the ISP requires the host name as
identification. You may check with ISP to
see if your Internet service has been
configured with a host name. In most cases,
this field can be ignored.
Trigger DHCP Service: Server
The default setup is Enable DHCP server. If
you want to turn off the DHCP service,
choose Disable.
For example: If the LAN IP address is
192.168.0.1, the IP range of LAN is
192.168.0.2 to 192.168.0.51. The DHCP
server assigns the IP form Start IP Address
to End IP Address. The legal IP address
range is form 0 to 255, but 0 are reserved as
network name and 255 are reserved for
broadcast. It implies the legal IP address
range is from 1 to 254. That means you
cannot assign an IP greater than 254 or less