400HD Series IP Phones
Administrator's Manual 32 Document #: LTRT-11973
3.1.2.4 Provisioning using DHCP Option 66/67
Phones can get a provisioning URL from DHCP Option 66/67. Option 160 has the highest
priority, followed by Option 66/67, and then Option 43 [support pending]. The table below
shows the behaviors for Option 66/67.
Table 3-2: Auto Provisioning via DHCP Option 66/67
Option 66 Option 67 Result Comment
Doesn’t exist or empty Any No URL from Option 66/67 When Option 66
doesn’t exist, or
it’s empty, the
phone cannot get
a URL from Option
66/67.
Server address exists but there is no
protocol header such as TFTP, FTP,
HTTP, HTTPS.
File names do not exist.
Example:
Audiocodes.com
192.168.0.11
Non-existent Firmware URL:
Tftp://audiocodes.com/<hardware
type>.img
Configuration file url:
Tftp://audiocodes.com/.<mac>cfg
When protocol is
not specified, tftp
is added as the
def ault protocol.
Contains names.
Example:
abc.img;efg.cfg
Firmware URL:
Tftp://audiocodes.com/abc.img
Configuration file URL:
Tftp://audiocodes.com/efg.cfg
Server address exists
File names do not exist.
Example:
http://Audiocodes.com
http://192.168.0.11
Non-existent Firmware URL:
http://audiocodes.com/<hardware
type>.img
Configuration file URL:
http://audiocodes.com/.<mac>cfg
Support pending
Contains names.
Example:
abc.img;efg.cfg
Firmware URL:
http://audiocodes.com/abc.img
Configuration file URL:
http://audiocodes.com/efg.cfg
Server address exists.
File names exist.
Example:
http://Audiocodes.com/abc.image;efg
.cfg
Any Firmware URL:
http://audiocodes.com/abc.img
Configuration file URL:
http://audiocodes.com/efg.cfg
[Support pending]
If any file name
exists in Option
66, the names in
Option 67 are
ignored.
To operate with DHCP Options 66 and 67:
Configure DHCP Options 66 and 67 in the DHCP server, instead of configuring Option
160. See the DHCP server related documentation for detailed information.