Avaya 4600 Series Administrator's Manual page 69

Note:
You can add additional exclusion ranges later by right clicking the Address Pool
Note:
under the newly created scope and selecting the New Exclusion Range option.
Example:
Suppose the ranges 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
●
The Start IP Address and End IP Address you enter in the IP Address Range dialog box
are 135.254.76.7 and 135.254.76.230 respectively.
In the Add Exclusions dialog box, exclude the following ranges:
135.254.76.81 to 135.254.76.89
●
135.254.76.201 to 135.254.76.224
●
Click the Next button after you enter all the exclusions.
The Lease Duration dialog box displays.
10. For all telephones that obtain their IP Addresses from the server, enter 30 days in the
Lease Duration field. This is the duration after which a device's IP Address expires and
which the device needs to renew.
11. Click the Next button.
The Configure DHCP Options dialog box displays.
12. Click the No, I will activate this scope later button.
The Router (Default Gateway) dialog box displays.
13. For each router or default gateway, enter the IP Address and click the Add button.
When you are done, click the Next button.
The Completing the New Scope Wizard dialog box displays.
14. Click the Finish button.
The new scope appears under your server in the DHCP tree. The scope is not yet active
and will not assign IP Addresses.
15. Highlight the newly created scope and select Action-->Properties from the menu.
16. Under Lease duration for DHCP clients, select 2 weeks (minimum) and click the OK
button.
!
CAUTION:
IP Address leases are kept active for varying periods of time. To avoid having
CAUTION:
calls terminated suddenly, ensure that the lease duration is not too short, for
example, not set to less than two weeks. A lease duration of two to four weeks is
reasonable.
Issue 5 November 2006
DHCP
69