3com 4210 Manual De Usuario
202
C
HAPTER
21: DHCP C
ONFIGURATION
G
UIDE
Network Diagram
Figure 56 Network diagram for DHCP snooping configuration
Networking and
Configuration
Requirements
As shown in Figure 56, Ethernet 1/0/5 of Switch is connected to the DHCP server,
and Ethernet 1/0/1, Ethernet 1/0/2, and Ethernet 1/0/3 are respectively connected
to Client A, Client B, and Client C.
and Ethernet 1/0/1, Ethernet 1/0/2, and Ethernet 1/0/3 are respectively connected
to Client A, Client B, and Client C.
■
Enable DHCP snooping on Switch.
■
Specify Ethernet 1/0/5 on Switch as a DHCP snooping trusted port.
Applicable Products
Note that: Switch 4210support DHCP snooping, but do not support DHCP
snooping trusted port configuration.
snooping trusted port configuration.
Configuration Procedure
# Enable DHCP snooping on the switch.
[Switch] dhcp-snooping
# Specify Ethernet 1/0/5 as a trusted port.
[Switch] interface Ethernet1/0/5
[Switch-Ethernet1/0/5] dhcp-snooping trust
[Switch-Ethernet1/0/5] quit
Complete Configuration
#
interface Ethernet1/0/5
dhcp-snooping trust
#
dhcp-snooping
#
Eth1/0/2
Client B
Switch
DHCP Snooping
Client A
Eth1/0/1
Client C
Eth1/0/3
Eth1/0/5
DHCP Server
Product series
Software version Hardware
version
Switch 5500
Release V03.02.04 All
versions
Switch 5500G
Release V03.02.04 All
versions
Switch 4210
All versions