Configuring The Tftp Server Address And Bootfile Name For The Client - H3C S9500 Series Operation Manual

Operation Manual – DHCP
H3C S9500 Series Routing Switches
To configure the gateways in the DHCP address pool, use the following commands:
To do...
Enter system view
Enter DHCP
address pool view
Specify gateways
Note:
For a Virtual Router Redundancy Protocol (VRRP) network, you are recommended to
specify the virtual IP address of the VRRP group as the gateway of the address pool, or
reserve the virtual IP address. Otherwise, the virtual IP address of the VRRP group
may be assigned to a client (Linux client, for example), which does not perform address
conflict detection after obtaining the IP address through DHCP, thus causing network
disruption.

2.5.9 Configuring the TFTP Server Address and Bootfile Name for the Client

This task is to specify the IP address and name of a TFTP server and the bootfile name
in the DHCP address pool. The DHCP clients use these parameters to contact the
TFTP server, requesting the configuration file used for system initialization, which is
called autoconfiguration. The request process of the client is described below:
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 or a Layer 3 Ethernet
interface) as the DHCP client to request from the DHCP server 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.
Note that if the client cannot get related parameters, it will use the empty configuration
file for system initialization.
When option 55 in the requesting client message contains parameters of option 66,
option 67, or option 150, the DHCP server will return the IP address and name of the
specified TFTP server, and bootfile name to the client.
To configure the IP address and name of the TFTP server and the bootfile name in the
DHCP address pool, use the following commands:
Use the command...
system-view
dhcp server ip-pool
pool-name
gateway-list
ip-address&<1-8>
2-10
Chapter 2 DHCP Server Configuration
Remarks
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Required
No gateway is specified by default.