Avaya one-X 1603SW Administrator's Manual page 49

The following parameters for 1603SW-I SIP IP Deskphones can be set in DHCP Option 242.
Most of the same parameters can be set in a 46xxsettings.txt file as well.
Table 8: Parameters Set by DHCP
Parameter
HTTPDIR
HTTPPORT
HTTPSRVR
ICMPDU
ICMPRED
L2Q
L2QVLAN
LOGSRVR
MTU_SIZE
PHY1STAT
PHY2STAT
PROCPSWD
PROCSTAT
SIP_CONTROLLER_LIST
TLSDIR
Description
Specifies the path to prepend to all configurations and data files the
phone might request when starting up, i.e., the path, relative to the root
of the HTTP file server, to the directory in which the telephone
configuration and date files are stored. The path may contain no more
than 127 characters and may contain no spaces. If an Avaya file server
is used to download configuration files over HTTPS, but a different
server is used to download software files via HTTP, set the path of the
Avaya server in the DHCP site-specific option, and set HTTPDIR again
in the 46xxsettings.txt file with the appropriate path for the second
server. HTTPDIR is the path for all HTTP operations. The command is
"SET HTTPDIR=<path>". In configurations where the upgrade
(16xxupgrade.txt) and binary files are in the default directory on the
HTTP server, do not use the HTTPDIR=<path>.
Destination port for HTTP requests (default is 80).
IP Address(es) or DNS name(s) of HTTP file server(s) used for file
download (settings file, language files, code) during startup. The files
are digitally signed, so TLS is not required for security.
Controls the extent to which ICMP Destination Unreachable messages
are sent in response to messages sent to closed ports so as not to
reveal information to potential hackers. The default is 1 (sends
Destination Unreachable messages for closed ports used by
traceroute).
Controls whether ICMP Redirect messages are processed. The default
is 0 (redirect messages are not processed).
802.1Q tagging mode. The default is 0 (automatic).
VLAN ID of the voice VLAN. The default is 0.
Syslog server IP or DNS address.
Maximum transmission unit size. Used to accommodate older Ethernet
switches that cannot support the longer maximum frame length of
tagged frames (since 802.1Q adds 4 octets to the frame).
Controls the Ethernet line interface speed. The default is 1
(auto-negotiate).
Controls the secondary Ethernet interface speed. The default is 1
(auto-negotiate).
Security string used to access local procedures. The default is 27238.
Controls whether local procedures are enabled. The default is 0
(enabled).
SIP proxy/registrar server IP or DNS address(es). (0 to 255 characters;
zero or one IP Address in dotted decimal or DNS name format,
separated by commas without any intervening spaces.) The default is
null.
Used as path name that is prepended to all file names used in HTTPS
GET operations during initialization (0-127 character string).
DHCP Server Administration
Issue 1 June 2010 49