Zte ZXR10 2900E series Configuration Manual page 209

The DHCP Server checks the validity of the Relay Agent domain and allocates an IP
address to the DHCP Client that is in the same subnet as the IP address in accordance
with the domain value. This means that the allocated IP address and the IP address of
the interface through which the Relay receives request messages are in the same network
segment. At the same time, the DHCP Relay implements the forwarding of the responses
from the DHCP Server to the Client.
Configuring the DHCP Relay
DHCP relay configuration includes the following commands:
Command
zte(cfg)#
zte(cfg)#
zte(cfg)#
>| remote-ID {cisco | manual < string >| key < string >}}
zte(cfg)#
circuit-ID {on {cisco | china-tel | dsl-forum| henan-rft| key < string
>| manual < string >}| off}
zte(cfg)#
drop | modify | append}
zte(cfg)#
zte(cfg)#
zte(cfg)#
hex-numbers < hex-string>} server <A.B.C.D>
zte(cfg)#
A.B.C.D}| hex-numbers <hex-string>{ server A.B.C.D}}
zte(cfg)#
show dhcp relay
show dhcp vclass-id
zte(cfg)#
SJ-20130731155059-002|2013-11-27 (R1.0)
set dhcp relay{enable | disable}
set dhcp relay option82{enable | disable}
set dhcp relay option82 sub-option device { ani< string
set dhcp relay option82 sub-option port <portlist>
set dhcp relay option82 mode port <portlist>{default |
set dhcp relay server mode {ipport | vclass-id}
set dhcp relay server retry <5-1000>
set dhcp relay vclass-id {characters <string>|
clear dhcp relay vclass-id {characters <string>{ server
clear dhcp relay option82 device ani
clear dhcp option82 sub-option device ani
Chapter 5 Service Configuration
5-161
ZTE Proprietary and Confidential
Function
Globally enables/disables the
DHCP relay function.
Globally enables/disables the
DHCP relay option82 function.
Sets the switch node device ID.
Sets the relay option82 suboption.
Sets the mode in binding the
dynamic user information binding
table options for the port.
Sets the DHCP Relay mode, sets
the DHCP server depending on
ipport or vclass-id.
Sets the DHCP Relay retry, that is,
the number of times that message
resending to the server is tried.
Sets the server IP address
corresponding to the class-id
domain of the server.
Clears the configured dhcp relay
vclass-id.
Clears the device ID information.
Displays the DHCP relay
configuration.
Displays the DHCP Relay option60
configuration.
Clears the device ID information.