3com S7906E 참조 가이드

 

4-8 

no-user-binding: Specifies the port not to record the clients’ IP-to-MAC bindings in DHCP requests it 

receives. The command without this keyword records the IP-to-MAC bindings of clients. 

Use the dhcp-snooping trust command to configure a port as a trusted port. 

Use the undo dhcp-snooping trust command to restore the default state of a port. 

All ports are untrusted by default. 

Related commands: display dhcp-snooping trust. 

# Specify GigabitEthernet 2/0/1 as a trusted port and enable it to record the IP-to-MAC bindings of 

clients. 

<Sysname> system-view 

[Sysname] interface gigabitethernet 2/0/1 

[Sysname-GigabitEthernet2/0/1] dhcp-snooping trust 

display dhcp-snooping [ ip ip-address ] 

Any view 

1: Monitor level 

ip  ip-address: Displays the DHCP snooping IP-to-MAC binding corresponding to the specified IP 

address. 

Use the display dhcp-snooping command to display the IP-to-MAC bindings recorded by the DHCP 

snooping device. 

Related commands: dhcp-snooping. 

 

Using the display dhcp-snooping command displays IP-to-MAC bindings that are present both in the 

DHCP-ACK and DHCP-REQUEST messages.