Polycom SoundStructure C16 Design Manual page 332

Design Guide for the Polycom SoundStructure C16, C12, C8, and SR12
Name
Boot server
Boot Server Option
12 - 34
Possible Values
Option 66
Custom + Option 66
128 through 254
Description
The SoundStructure VoIP Interface will look for Option
number 66 (string type) in the response received from
the DHCP server. The DHCP server should send
address information in Option 66 that matches one of
the formats described for Server Address.
If the DHCP server sends nothing, the following
scenarios are possible:
• If a boot server value is stored in flash memory and
the value is not 0.0.0.0, then the value stored in
flash is used.
• Otherwise the SoundStructure VoIP Interface sends
out a DHCP INFORM query.
If a single alternate DHCP server responds, this is
functionally equivalent to the scenario where the
primary DHCP server responds with a valid boot
server value.
If no alternate DHCP server responds, the INFORM
query process will retry and eventually time out.
The SoundStructure VoIP Interface will first use the
custom option if present or use Option 66 if the custom
option is not present.
If the DHCP server sends nothing, the following
scenarios are possible:
• If a boot server value is stored in flash memory and
the value is not 0.0.0.0, then the value stored in
flash is used.
• Otherwise the SoundStructure VoIP Interface sends
out a DHCP INFORM query.
If a single alternate DHCP server responds, this is
functionally equivalent to the scenario where the
primary DHCP server responds with a valid boot
server value.
If no alternate DHCP server responds, the INFORM
query process will retry and eventually time out.
When the boot server parameter option is set to
Custom, this parameter specifies the DHCP option
number in which the SoundStructure VoIP Interface will
look for its boot server.