Configuring A Destination Dhcp Server Group - Huawei S9300 Configuration Manual

S9300&S9300E Terabit Routing Switch
Configuration Guide - IP Service
Context
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
dhcp enable
DHCP is enabled globally.
Step 3 Run:
interface vlanif vlan-id
The VLANIF interface view is displayed.
Step 4 Run:
ip address ip-address { mask | mask-length }
An IP address is allocated to the VLANIF interface.
Step 5 Run:
dhcp select relay
The DHCP relay function is enabled for the VLANIF interface.
----End
Follow-up Procedure
When functioning as a DHCP relay agent, the S9300&S9300E forwards the DHCP Request
packets from DHCP clients to the DHCP server. After the DHCP relay function is enabled on
the VLANIF interface, set the DHCP server address on the VLANIF interface in either of the
following ways:
l
l

3.5.3 Configuring a Destination DHCP Server Group

Generally, a DHCP relay agent serves multiple DHCP servers. The DHCP servers that share
one DHCP relay agent can be added to a server group to facilitate server management. The
DHCP server group allocates IP addresses for the users connected to the DHCP relay agent.
Issue 01 (2012-03-15)
NOTE
A DHCP packet is forwarded by a DHCP relay agent between a DHCP client and a DHCP server at most
16 times. Otherwise, the DHCP packet is discarded.
If DHCP relay is enabled in a super-VLAN, DHCP snooping cannot be enabled in this super-VLAN.
NOTE
When configuring an egress gateway address for the address pool on a DHCP server, ensure that this egress
gateway address is the same as the egress gateway address of the DHCP relay agent.
Configure a destination DHCP server group and bind the group to the interface. For details,
see 3.5.3 Configuring a Destination DHCP Server Group
Interface to a DHCP Server
Run the dhcp relay server-ip ip-address command in the VLANIF interface view to
configure the destination DHCP server address.
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Group.
3 DHCP Configuration
and 3.5.4 Binding an
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