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4600 Series IP Telephone LAN Administrator’s Guide
DHCP
4-8
— A 4600 Series IP Telephone-specific DHCP option specifying information such as
TFTP server and Avaya Media Server Gatekeeper IP addresses. Use the site-specific
option (SSON) at #176. The value for this option should be set to either of the
following strings:
MCIPADD=xxx.xxx.xxx.xxx,MCPORT=yyyy,TFTPDIR=<path>,TFTPSRVR=
zzz.zzz.zzz.zzz
OR
MCIPADD={list of DNS names},MCPORT=yyyy,TFTPDIR=<path>,TFTPSRVR=
{list of DNS names}
Where xxx.xxx.xxx.xxx is one or more IP addresses for Avaya Media Server
Gatekeepers, yyyy is the Avaya Media Server Gatekeeper port (1719),
zzz.zzz.zzz.zzz is one or more IP addresses for TFTP servers, and <path> is the
location of the upgrade script and application files on the TFTP server as entered in
Table 4-2, on page 4-6
, items: 4, 5, 2, and 7, respectively. Each list may contain up to
127 total ASCII characters, with IP addresses separated by commas with no
intervening spaces, and with quotes on either end (see the example in the NOTES on
page 4-9
). If you use DNS, note that the system value DOMAIN will be appended to
the IP addresses you specify. If DOMAIN is null, the DNS names must be fully
qualified.
The 4600 Series IP Telephones do not support Regular Expression Matching, and therefore, do
not use wildcards. See Administering Options for the 4600 Series IP Telephones, on page 4-30
.
In configurations where the upgrade script and application files are in the default directory, the
TFTPDIR=<path> should not be used.
You do not have to use Option 176, but if you do not use it, you must ensure the key information
(TFTPSRVR, MCIPADD, and MCPORT, especially) is administered appropriately elsewhere. For
example, if the DNS server is specified in Option 6, and the Domain Name is specified in Option
15, you can use the configured names “AvayaTFTPServer” and “AvayaCallServer” for TFTPSRVR
and MCIPADD, respectively. Upgrading from IP Telephone Releases prior to R1.60 requires
Option 176 to be administered with, at a minimum, MCIPADD.
DHCP servers should be administered to deliver only the options specified in this document.
Administering additional, unexpected options may have unexpected consequences, including
possibly causing the IP Telephone to ignore the DHCP server.
The Media Server Name, TFTP Server Name, and SMTP Server Name must each be no more
than 32 characters in length.
The TFTPDIR value should be listed before the TFTPSRVR, if the latter is
specified in the SSON.