_ Setup 
Step1:configure ACL 
  ZXR10(config)#acl standard number 10 
ZXR10(config-std-acl)#rule 1 deny 192.168.1.100 0.0.0.0 
Step2:enable ACL on port inbind 
ZXR10 (config-fei_1/2)#ip access-group 1 in 
 
Test Instruction for ZXR10 8900 
A.DHCP Snooping Configuration Procedure 
_ Topology 
 
_ Setup 
Step1: configure vlan 
ZXR10(config)#interface gei_1/1 
ZXR10(config)#ipv4 protocol-protect mode dhcp enable 
ZXR10(config-gei_1/1)#switch access vlan 100