Huawei Quidway S3500 Series Operation Manual page 142

Operation Manual - Network Protocol
Quidway S3500 Series Ethernet Switches
[Quidway-dhcp-2] network 10.1.1.128 mask 255.255.255.128
[Quidway-dhcp-2] expired day 5
[Quidway-dhcp-2] nbns-list 10.1.1.4
[Quidway-dhcp-2] gateway-list 10.1.1.254
[Quidway-dhcp-0] domain-name domain.com
[Quidway-dhcp-0] dns-list 10.1.1.2
5.6.2 DHCP Relay Configuration Example
I. Networking requirement
The segment address for DHCP Client is 10.110.0.0, which is connected to a port in the
VLAN2 on the switch. The IP address of DHCP Server is 202.38.1.2. The DHCP
packets should be forwarded via the switch with DHCP Relay enabled. DHCP Client
can get IP address and other configuration information from DHCP Server.
Configure an IP address pool on the DHCP Server and assign the network segment
10.110.0.0 to the pool for allocating IP addresses to the DHCP clients on this segment.
In addition, configure a route for the DHCP Server to reach the segment 10.110.0.0.
II. Networking diagram
DHCP client
Switch ( DHCP Relay )
Figure 5-4 Networking application of DHCP relay
III. Configuration procedure
Configure DHCP Relay:
# Enable the DHCP service.
[Quidway] dhcp enable
# Enable DHCP Relay to relay DHCP messages to an external DHCP server for
address allocation.
[Quidway] interface vlan 2
[Quidway-Vlan-interface2] dhcp select relay
DHCP client
10.110.0.0
Ethernet
10.110.1.1
Internet
Huawei Technologies Proprietary
DHCP Server
202.38.1.2
202.38.1.1
Ethernet
202.38.0.0
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Chapter 5 DHCP Configuration