Huawei Quidway S5600 Series - Page 656

Operation Manual - DHCP
Quidway S5600 Series Ethernet Switches-Release 1510 Chapter 2
DHCP Server Configuration
Huawei Technologies Proprietary
2-26
II. Meanings of the sub-options for option 184
Table 2-23 Meanings of the sub-options for option 184
Sub-option Feature Function Note
NCP-IP
(sub-option 1)
The NCP-IP
sub-option carries
the IP address of
the network call
processor (NCP).
The IP address of
the NCP server
carried by
sub-option 1 of
option 184 is
intended for
identifying the
server serving as
the network call
controller and the
server used for
application
downloading.
When used in option
184, this sub-option
must be the first
sub-option, that is,
sub-option 1
AS-IP
(sub-option 2)
The AS-IP
sub-option carries
the IP address of
the alternate
server (AS).
The alternate NCP
server identified by
sub-option 2 of
option 184 acts as
the backup of the
NCP server. The
NCP server
specified by this
option is used only
when the IP address
carried by the
NCP-IP sub-option
is unreachable or
invalid.
The AS-IP sub-option
takes effect only
when sub-option 1
(that is, the NCP-IP
sub-option) is defined