Avaya J100 Series Installing And Administering page 42

Initial setup and connectivity
Option
Option 42
Option 43
Option 51
Option 52
Option 53
Option 55
Option 57
Option 58
Option 59
August 2018 Installing and Administering Avaya J100 series IP Phones in third-party call control
Description
Specifies the SNTP IP address list. List servers in the order of preference. The
minimum length is 4 and the length must be a multiple of 4.
Specifies the encapsulated vendor-specific options that clients and servers use to
exchange the vendor-specific information. Option 43 is processed only if the first
code in the Option is 1 with a value of 6889. The value 6889 is an Avaya enterprise
number. All values are interpreted as strings of ASCII characters that are accepted
with or without a null termination character. Any invalid value is ignored and the
corresponding parameter value is not set.
Specifies the DHCP lease time. If this option is not received, the DHCPOFFER is not
accepted. Assign a lease time of six weeks or greater. If this option has a value of
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
• 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.
Comments on this document? infodev@avaya.com
setup
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