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4600 Series IP Telephone LAN Administrator’s Guide
DHCP
4-10
In addition, the DHCP server can assign configuration parameters to a client, and these can be
specified for each individual DHCP scope.
Setting up of the Windows NT 4.0 DHCP server, requires the following steps.
1. Creating a DHCP scope for the IP Telephones.
2. Editing custom options.
3. Adding the DHCP options.
4. Activating the new scope.
Creating a DHCP Scope for the IP Telephones 4
Use the following procedure to create a DHCP scope for the IP Telephones.
1. Select Start->Programs->Admin Tools->DHCP Manager.
2. Expand Local Machine in the DHCP Servers window by double clicking on it until the + sign
changes to a - sign.
3. Select Scope->Create.
4. Define the range of IP addresses used by the IP telephones listed in Line 7 of Table 4-2.
The Start Address should be the first IP address to be used for the IP telephones.
The End Address should be the last IP address to be used for the IP telephones.
Subnet Mask should be set to the value as recorded in Table 4-2.
Perform the following steps to exclude any IP addresses that you do not want to be assigned
to IP telephones within the range specified by the Start and End Addresses.
a. Enter the first IP address in the range that you would like to exclude in the Start Address
field under Exclusion Range.
b. Enter the last IP address in the range that you would like to exclude in the End Address
field under Exclusion Range.
c. Click the Add button.
d. Repeat steps a. through c. for each IP Address range that you would like to exclude.
Example
Suppose the range of IP addresses available for your IP telephone network are:
■ 135.254.76.7 to 135.254.76.80
■ 135.254.76.90 to 135.254.76.200
■ 135.254.76.225 to 135.254.76.230
Your start address and end address should then be 135.254.76.7 and 135.254.76.230
respectively.