3.3.1 DHCPv4 Server
Dynamic DNS updates are governed by the following DNS settings on the DHCPv4 server. The DHCP_OPTION_DATA_TYPE (section 2.2.1.1.10) for this option is the DhcpDWordOption, that is the option value is of type DWORD.
|
Option Identifier |
Protocol |
|---|---|
|
81 |
DHCPv4 |
The option value is a bitmask defined as follows:
|
BITMASK VALUE |
MEANING |
|---|---|
|
0x01 |
This flag enables Dynamic DNS updates by the DHCPv4 server. |
|
0x02 |
This flag enables Dynamic DNS Updates by a client that does not request updates to be posted by the DHCPv4 server. |
|
0x04 |
This flag enables the DHCPv4 Server to dynamically discard A and PTR records when the lease is deleted. |
|
0x10 |
This flag enables the DHCPv4 server to dynamically update both A and PTR records. |
|
0x20 |
This flag enables Name Protection by the DHCPv4 Server.<90> |