Avaya 9601 Administering page 29

Option
Option 52
Option 53
Option 55
Option 57
Option 58
Option 59
Option 242
Parameters such as HTTPSRVR and SIP_CONTROLLER_LIST support values with lengths up to
255 octets, but you must set shorter values when you are setting them through DHCP.
August 2015
Description
FFFFFFFF hex, the IP address lease is assumed to be infinite, so that the renewal
and rebinding procedures are not necessary even if options 58 and 59 are received.
Expired leases causes the device to reboot.
Specifies the overload option. If this option is received in a message, the device
interprets the sname and file parameters.
Specifies the DHCP message type. The value can be one of the following:
• 1 for DHCPDISCOVER
• 3 for DHCPREQUEST
For DHCPREQUEST sent to renew the device IP address lease:
• If a DHCPACK is received in response, a log event record is generated with a Log
Category of DHCP.
• If a DHCPNAK is received in response, the device immediately ceases IP address
usage, generates a log event record, sets IPADD to 0.0.0.0, and enters the DHCP
INIT state.
Specifies the parameter request list. Acceptable values are:
• 1 for subnet mask
• 3 for router IP addresses
• 6 for domain name server IP addresses
• 7 for log server
• 15 for domain name
• 26 for interface MTU
• 42 for NTP servers
Specifies the maximum DHCP message size.
Set the value to 1500.
Set the value to 1000.
Specifies the DHCP lease renew time. If not received or if this value is greater than
that for option 51, the default value of T1, renewal timer is used.
Specifies the DHCP lease rebind time. If not received or if this value is greater than
that for Option 51, the default value of T2, rebinding timer is used.
Specifies the site-specific option. This option is optional. If you do not configure this
option, ensure that one of the following parameters is configured appropriately
elsewhere:
• FILE_SERVER_URL
• HTTPSRVR
• TLSSRVR
Administering Avaya 9601/9608/9611G/9621G/9641G/9641GS IP Deskphones SIP
Comments on this document? infodev@avaya.com
DHCP options configuration
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