3Com Switch 8800 Advanced Software V5 Configuration Guide

728 CHAPTER 50: DHCP SERVER CONFIGURATION
Configuring Gateways
for the Client
DHCP clients wanting to access hosts outside the local subnet request gateways to
forward data. You can specify gateways in each address pool for clients. Up to
eight gateways can be specified in a DHCP address pool.
To configure the gateways in the DHCP address pool, use the following
commands:
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:
When a router starts up with an empty configuration file, the system sets the
specified interface (Vlan-interface1) as the DHCP client to request from the DHCP
server parameters such as the IP address and name of a TFTP server, bootfile name.
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.
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:
Enter DHCP address pool
view
dhcp server ip-pool pool-name -
Specify the BIMS server IP
address, port number, and
shared key
bims-server ip ip-address [ port
port-number ] sharekey key
Required
Not specified by default
To do... Use the command... Remarks
To do... Use the command... Remarks
Enter system view system-view -
Enter DHCP address pool
view
dhcp server ip-pool pool-name -
Specify gateways gateway-list ip-address&<1-8> Required
No gateway is specified by
default.
To do... Use the command... Remarks
Enter system view system-view -
Enter DHCP address pool
view
dhcp server ip-pool pool-name -