## Configuring DHCP for 9600 Series IP Telephones

To administer DHCP option 242, make a copy of an existing option 176 for your 46xx IP Telephones. You can then either:

- leave any parameters the 9600 Series IP Telephones do not support for setting via DHCP in option 242 to be ignored, or
- delete unused or unsupported 9600 IP Series Telephone parameters to shorten the DHCP message length.

Only the following parameters can be set in the DHCP site-specific option for 96xx telephones, although most of them can be set in a 46xxsettings.txt file as well. For more information, see the Avaya one-X Deskphone Edition for 9600 Series IP Telephones Administrator Guide. New parameters for the 9600 Series IP Telephones that are not supported by 46xx telephones with R2.4 software are shown in bold type.

9600 Series IP Telephone Parameters Settable using DHCP
Parameter | Description
--- | ---
TLSSRVR | IP address(es) or DNS name(s) of Avaya file server(s) used to download configuration files. Note: Transport Layer Security is used to authenticate the server.
HTTPSRVR | IP address(es) or DNS name(s) HTTP file server(s) used to download 96xx telephone software files. The files are digitally signed, so TLS is not required for security.
HTTPDIR | The path (relative to the root of the TLS or HTTP file server) where 96xx telephone files are stored. If an Avaya file server is used to download configuration files over TLS, 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.
STATIC | Controls whether to use a manually-programmed file server or CM IP address instead of those received via DHCP or a settings file. If a manually-programmed file server IP address is to be used, STATIC must be set via DHCP.
MCIPADD | CM server(s) IP address(es) or DNS name(s). If there are too many addresses or names to include all of them in the DHCP site-specific option, include at least one from each major system. Then set MCIPADD again in the 46xxsettings.txt file with the complete list of addresses. Providing a subset of the addresses via DHCP improves reliability if the file server is not available due to server or network problems.
DOT1X | Controls the operational mode for 802.1X. The default is 0 (pass-through of multicast EAPOL messages to an attached PC, and enable Supplicant operation for unicast EAPOL messages).
ICMPDU | 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).
ICMPRED | Controls whether ICMP Redirect messages are processed. The default is 0 (they are not processed).
L2Q | 802.1Q tagging mode. The default is 0 (automatic).
L2QVLAN | VLAN ID of the voice VLAN. The default is 0.
LOGLOCAL | Controls the severity level of events logged in the SNMP MIB. The default is 7.
PHY1STAT | Controls the Ethernet line interface speed. The default is 1 (auto-negotiate).
PHY2STAT | Controls the secondary Ethernet interface speed. The default is 1 (auto-negotiate).
PROCPSWD | Security string used to access local procedures. The default is null.
PROCSTAT | Controls whether local procedures are enabled. The default is 0 (enabled).
VLANTEST | Controls the length of time the telephone tries DHCP with a non-zero VLAN ID. When the interval is exceeded, the telephone records the VLAN ID so that it is not used again, and DHCP continues on the default VLAN. The default is 60 seconds.