Avaya 4600 User Manual

Dynamic Host Configuration Protocol (DHCP) provides a means by which configuration 
parameters can be automatically assigned to clients on a TCP/IP network. DHCP minimizes a 
4600 Series IP Telephone network’s maintenance by removing the need to individually assign 
and maintain IP addresses and other parameters for each IP telephone on the network. 

Ensure that you have purchased and/or own licenses to install and use any or all of the DHCP, 
TFTP, and HTTP server software. 

Note:

It is possible to install the DHCP, TFTP, and HTTP server software on the same 
machine.

CAUTION:

The circuitry in the 4600 Series IP Telephones reserves IP addresses of the form 
192.168.2.x for internal communications. The telephone(s) will not properly use 
addresses you specify if they are of that form. 

DHCP is the control point where an enterprise controls its IP telephones. Before administering 
DHCP and TFTP, HTTP, and TLS, as applicable, complete the information in 

on page 60. Completing the pre- 

installation steps ensures that you have the necessary information regarding your network. If 
you have more than one Gateway, TFTP/HTTP/TLS server, subnet mask, and Gatekeeper in 
your configuration, you need to complete 

 for each DHCP server.

Release 1.5 of the 4600 Series Telephones supported specifying a list of IP addresses for a 
gateway/router, TFTP server, and Avaya Media Server Gatekeeper(s). We explain this 
specification in 

on page 27. Each list can contain up to 255 

total ASCII characters, with IP addresses separated by commas with no intervening spaces. 
Note that depending on the specific DHCP application, only 127 characters might be supported.