PLANET WGSW-50040 - Manual (Page 152)

20-9
3． Enable DHCP Snooping option 82 binding function
4． Configure trust ports
1. Enable DHCP SNOOPING
Command Explanation
Global mode
ip dhcp snooping enable
no ip dhcp snooping enable
Enable or disable DHCP SNOOPING
function.
2. Enable DHCP Snooping binding function
Command Explanation
Interface configuration mode
ip dhcp snooping binding enable
no ip dhcp snooping binding enable
Enable or disable DHCP SNOOPING
binding function.
3. Enable DHCP Snooping option 82 function
Command Explanation
Global mode
ip dhcp snooping information enable
no ip dhcp snooping information enable
Enable or disable DHCP SNOOPING
option 82 function.
4. Configure trust ports
Command Explanation
Admin mode
ip dhcp snooping trust
no ip dhcp snooping trust
Set or delete DHCP SNOOPING trust
attribute of ports.
20.3 DHCP option 82 Application Examples
Figure 20-2 A DHCP option 82 typical application example
DHCP Client PC1
Vlan1:eth1/3
Switch1
DHCP Server