User manual

4200 User Manual Edgewater Networks, Inc.
Version 2.2 16
below 800 bytes.
A. Select System.
B. Select System Overview.
C. Enter the WAN MTU size
D. Press Submit.
Configure the DHCP Server
The 4200 can act as a DHCP server granting IP
addresses to PCs, workstations, servers or voice
devices (IP phones, IADs or softphones). DHCP is a
protocol that enables IP devices to obtain
temporary or permanent IP addresses (out of a
pool) from centrally administered servers. The user
can configure blocks of IP addresses, a default
gateway, DNS servers, NTP server address, Time
offset from NTP value, WINS address and TFTP/FTP
server name that can be served to the requesting
IP devices. In addition the 4200 will provide its
LAN IP address in DHCP user options 150 and 151
for use by IP phones. Some IP phones use these
values for configuration of their TFTP server and
MGCP control server addresses.
PLEASE note: The DHCP server in the 4200 should
not be used if a DHCP server already exists in the
same subnet as the 4200. Also, it is recommended that you assign static IP
addresses for common-access devices such as network printers or fax machines.
A. Select DHCP Server.
B. The default value for the DHCP server is enabled.
C. Enter the Lease Duration.
The lease duration is the amount of time in days that an IP device may use an
assigned IP address before requesting that it be renewed. The default value is 7
days and the valid range of input is 1 to 30 days.
D. Enter the Subnet Mask.
This is the subnet mask that will be sent via DHCP to the requesting IP devices.
E. Enter the DHCP IP Addresses.
This is the pool of IP addresses that will be provided to the requesting IP devices.
You can enter both individual IP addresses or a range of addresses using the
following format:
192.168.1.3-5
where 192.168.1.3 is the starting address and 192.168.1.5 is the ending address.
PLEASE note: The range format can only be used for class C addresses.