Administering The Dhcp And File Servers - Avaya J169 Installing And Administering

Note:
You can install the DHCP and the HTTP server software on the same computer.
Caution:
The firmware in the IP Deskphones reserves the IP addresses of the form 192.168.2.x for
internal communications. The phone might not function properly if you configure addresses in
that range.
Related links
Server Administration

Administering the DHCP and file servers

Dynamic Host Configuration Protocol (DHCP) minimizes maintenance for the IP Telephone
network. With DHCP, you need not individually assign and maintain IP addresses and the other
parameters on each IP phone on the network.
Depending on administration, the DHCP server provides the following information to the IP
Telephones:
• An IP address of the IP Telephone
• An IP address of the Avaya call server
• An IP address of the HTTP or HTTPS file server
• The subnet mask
• An IP address of the router
• A DNS Server IP address
Administer the LAN so each IP deskphone can reach a DHCP server that contains the IP
addresses and subnet mask.
The phone cannot function without an IP address. Using the IP address reuse capability, the
phone can reuse the previous IP address and parameter settings even if the DHCP server is
temporarily unavailable. A user can manually assign a different IP address to an IP deskphone.
When the DHCP server finally returns, the phone does not search for a DHCP server unless the
static IP data is unassigned manually. In addition, manual entry of IP data is an error-prone
process.
Ensure that:
• A minimum of two DHCP servers are available for reliability.
• A DHCP server is available when the IP deskphone restarts.
• A DHCP server is available at remote sites if WAN failures isolate IP deskphones from the
central site DHCP servers.
The file server provides the phone with a script file and, if appropriate, new or updated application
software.
May 2018
on page 82
Installing and Administering Avaya J169/J179 IP Phone H.323
Comments on this document? infodev@avaya.com
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