Configuring self-defined dhcp options – H3C Technologies H3C WX3000E Series Wireless Switches User Manual

Page 41

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To do…

Use the command…

Remarks

Specify the failover IP address and
dialer string

voice-config fail-over
ip-address dialer-string

Optional
No failover IP address or dialer

string is specified by default.

NOTE:

Specify an IP address for the network calling processor before performing other configurations.

Configuring the TFTP server and bootfile name for the client

For the DHCP server to support client auto-configuration, you must specify the IP address or name of a

TFTP server and the bootfile name in the DHCP address pool. You do not need to perform any

configuration on the DHCP client.
The DHCP client uses these parameters to contact the TFTP server and request the configuration file used
for system initialization.

1.

When a router starts up without loading any configuration file, the system sets an active interface
(such as the interface of the default VLAN) as the DHCP client to request from the DHCP server for

parameters, such as an IP address and name of a TFTP server, and the bootfile name.

2.

After getting related parameters, the DHCP client will send a TFTP request to obtain the
configuration file from the specified TFTP server for system initialization. If the client cannot get

such parameters, it will perform system initialization without loading any configuration file.

When Option 55 in the client’s request contains parameters of Option 66, Option 67, or Option 150, the

DHCP server will return the IP address or name of the specified TFTP server, and bootfile name to the

client.
Follow these steps to configure the IP address and name of the TFTP server and the bootfile name in the
DHCP address pool:

To do…

Use the command…

Remarks

Enter system view

system-view

Enter DHCP address pool view

dhcp server ip-pool pool-name
[ extended ]

Specify the TFTP server

tftp-server ip-address ip-address

Required to use either
command
Not specified by default.

Specify the name of the TFTP server tftp-server domain-name domain-name

Specify the bootfile name

bootfile-name bootfile-name

Required
Not specified by default.

Configuring self-defined DHCP options

CAUTION:

Be cautious when configuring self-defined DHCP options because such configuration may affect the
operation of DHCP.

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