1-23
z disable: Disables the specified VLAN, meaning DHCP clients will not take this VLAN as their voice
VLAN.
z enable: Enables the specified VLAN, meaning DHCP clients will take this VLAN as their voice
VLAN.
fail-over ip-address dialer-string: Specifies the failover IP address and dialer string. The dialer-string is
a string of 0 to 39 characters, which can be 0 to 9, and “*”.
interface interface-type interface-number [ to interface-type interface-number ]: Specifies the DHCP
interface address pool (s).
all: Specifies all interface address pools.
Description
Use the dhcp server voice-config command to enable the DHCP server to assign IP addresses with
Option 184 and its sub-options from the specified interface address pool.
Use the undo dhcp server voice-config command to disable the DHCP server from assigning IP
addresses with Option 184 and its sub-options from the specified interface address pool.
The DHCP server answers Option 184 and the corresponding sub-options only after the DHCP client
requests for Option 184.
Before configuring other sub-options, you must configure the sub-option ncp-ip; otherwise other
sub-options do not take effect.
By default, a DHCP server interface address pool does not assign Option 184 and the corresponding
sub-options to the client.
Related commands: voice-config.
Examples
# Enter system view
<Sysname> system-view
System View: return to User View with Ctrl+Z.
# Enter VLAN-interface 1 view.
[Sysname] interface Vlan-interface 1
# Enable the DHCP server to support all the sub-options of Option 184 in VLAN-interface 1. The NCP IP
address is 1.1.1.1 and the IP address of the alternate server is 2.2.2.2. The voice VLAN is enabled, with
the ID being 3. The fail-over IP address is 3.3.3.3 and the dial number string is 99*.
[Sysname-Vlan-interface1] dhcp select interface
[Sysname-Vlan-interface1] dhcp server voice-config ncp-ip 1.1.1.1
[Sysname-Vlan-interface1] dhcp server voice-config as-ip 2.2.2.2
[Sysname-Vlan-interface1] dhcp server voice-config voice-vlan 3 enable
[Sysname-Vlan-interface1] dhcp server voice-config fail-over 3.3.3.3 99*
display dhcp server conflict
Syntax
display dhcp server conflict { all | ip ip-address }
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