Ruijie RG-WLAN Series

Configuration Guide Configuring DHCP Snooping
Scenario
Figure 8-5
Configuration
Steps
 Enable DHCP Snooping on an access device (Switch B in this case).
 Configure the uplink port (port Gi 0/1 in this case) as a trusted port.
B
B#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
B(config)#ip dhcp snooping
B(config)#interface gigabitEthernet 0/1
B(config-if-GigabitEthernet 0/1)#ip dhcp snooping trust
B(config-if-GigabitEthernet 0/1)#end
Verification
Check the configuration on Switch B.
 Check whether DHCP Snooping is enabled, and whether the configured DHCP Snooping trusted port
is uplink.
 Check the DHCP Snooping configuration on Switch B, and especially whether the trusted port is
correct.
B
B#show running-config
!
ip dhcp snooping
!
interface GigabitEthernet 0/1
B#show ip dhcp snooping
Switch DHCP Snooping status : ENABLE
DHCP Snooping Verification of hwaddr status : DISABLE
DHCP Snooping database write-delay time : 0 seconds
DHCP Snooping option 82 status : DISABLE
DHCP Snooping Support BOOTP bind status : DISABLE
Interface Trusted Rate limit (pps)
------------------------ ------- ----------------
GigabitEthernet 0/1 YES unlimited
B#show ip dhcp snooping binding