Polycom SIP 2.2.0 사용자 설명서

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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 phone sends out a DHCP INFORM query 
and the following scenarios are possible:
If no alternate DHCP server responds:
- The INFORM query process will retry and eventually time 
out.
- The boot server value stored in flash will be used.
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.
2=Static
The phone will use the boot server configured through the 
Server Menu. For more information, refer to the following 
section, 
.
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 phone sends out a DHCP INFORM 
query and the following scenarios are possible:
If no alternate DHCP server responds:
- The INFORM query process will retry and eventually time 
out.
- The boot server value stored in flash will be used.
A single alternate DHCP server responds. 
- 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. This is functionally equivalent 
to the scenario where the primary DHCP server responds 
with a valid boot server value.
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 following section, 
Name
Possible 
Values
Description