PLANET WGSW-52040 - Manual (Page 532)

33-72
Function:
Set the max number of users allowed to access the port when enabling DHCP Snooping binding user funciton; the
no operation of this command will restore default value.
Parameters:
<number> the max number of users allowed to access the port, from 0 to 1024.
Command Mode:
Port Configuration Mode.
Default Settings:
The max number of users allowed by each port to access is 1024.
Usage Guide:
This command defines the max number of trust users distributed according to binding information, with ip dhcp
snooping binding user-contrl enabled on the port. By default, the number is 1024. Considering the limited
hardware resources of the switch, the actual number of trust users distributed depends on the resource amount. If a
bigger max number of users is set using this command, DHCP Snooping will distribute the binding informaiton of
untrust users to hardware to be trust users as long as there is enough available resources. Otherwise, DHCP
Snooping will change the distributed binging informaiton accordint to the new smaller max user number. When the
number of distributed bingding informaiton entries reaches the max limit, no new DHCP will be able to become trust
user or to access other network resouces via the switch.
Examples:
Enable DHCP Snooping binding user funtion on Port ethernet1/1, setting the max number of user allowed to
access by Port Ethernet1/1 as 5.
Switch(Config-If-Ethernet1/1)# ip dhcp snooping binding user-control max-user 5
Related Command: ip dhcp snooping binding user-control
33.15 ip dhcp snooping information enable
Command:
ip dhcp snooping information enable
no ip dhcp snooping information enable
Function:
This command will enable option 82 function of DHCP Snooping on the switch, the no operation of this command will