3com 5500-ei pwr Guia De Referência

 

1-23 

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. 

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. 

# 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 { all | ip ip-address } 

Any view 

all: Specifies all IP addresses.