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Administrator’s Guide SoundPoint IP / SoundStation IP
3 - 8
Boot Server (continued) 1=Custom The phone will look for the option number specified by the Boot
Server Option parameter (below), and the type specified by
the Boot Server Option Type parameter (below) in the
response received from the DHCP server.
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 phone 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.
2=Static The phone will use the boot server configured through the
Server Menu. For more information, refer to the next section,
Server Menu.
3=Custom+Option
66
The phone 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 phone 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. The
phone prefers the custom option value over the Option 66
value, but if no custom option is given, the phone will use
the Option 66 value.
- If no alternate DHCP server responds, the INFORM query
process will retry and eventually time out.
Boot Server Option 128 through 254
(Cannot be the
same as VLAN ID
Option)
When the boot server parameter is set to Custom, this
parameter specifies the DHCP option number in which the
phone will look for its boot server.
Boot Server Option Type 0=IP Address,
1=String
When the Boot Server parameter is set to Custom, this
parameter specifies the type of the DHCP option in which the
phone will look for its boot server. The IP Address must specify
the boot server. The String must match one of the formats
described for Server Address in the next section, Server
Menu.
Name
Possible
Values Description