Dhcp And Tftp - Avaya Application Solutions Deployment Manual

DHCP and TFTP

Dynamic Host Configuration Protocol (DHCP) provides a way to assign configuration
parameters to clients on a TCP/IP network automatically. This minimizes the maintenance of a
network of 4600 Series IP Telephones by removing the need to assign and maintain IP
addresses and other parameters for each IP Telephone on the network individually.
Trivial File Transfer Protocol (TFTP) provides a way to transfer files that does not require user
intervention. TFTP is used by Avaya IP Telephones to download their configuration files, and
the latest firmware.
The following sub-sections cover:
Software checklist
Required network information
Software checklist
Ensure that you own licenses to install and use the DHCP server software and the TFTP server
software.
!
WARNING:
The circuitry in the 4600 Series IP Telephones reserves IP addresses of the form
WARNING:
192.168.2.x for internal communications. The telephones do not properly use the
addresses you specify if the addresses are from that range.
Required network information
DHCP is the control point where an enterprise controls its IP Telephones. Before administering
DHCP and TFTP, complete the information that is outlined below to ensure that you have the
necessary information regarding your network. There can be more than one gateway, TFTP
server, subnet mask, and C-LAN in your configuration. You need a copy of this table for each
DHCP server.
Release 1.5 and later of the 4600 Series telephones supports the ability to specify a list of IP
addresses for a gateway/router, TFTP server, and one or more C-LAN circuit packs. Each list
can contain up to 127 total ASCII characters, with IP addresses that are separated by commas
with no intervening spaces. When you specify IP addresses for the TFTP server or call server,
you can use either dotted decimal format ("xxx.xxx.xxx.xxx") or DNS names to identify the
addresses. If you use DNS, note that the system value DOMAIN is appended to the IP
addresses that you specify. If DOMAIN is null, the DNS names must be fully qualified, in
accordance with IETF RFCs 1034 and 1035. For more information about DNS, see
TFTP and the IP Telephone LAN Administrators Guide.
You can install both the DHCP server and the TFTP server on the same machine.
IP terminals deployment
DHCP /
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